Crops
- Alfalfa
- Almonds
- Apples
- Bermudagrass
- Canola
- Cherries
- Chilies
- Citrus
- Corn
- Cotton
- Edible Beans
- Forage
- Grain
- Grapefruit
- Melons
- Onions
- Pasture
- Peanuts
- Pears
- Pistachios
- Potatoes
- Rice
- Sorghum
- Soybeans
- Sugar Beets
- Sugar Cane
- Vegetables
- Wheat
Compaction Reduces Alfalfa Yield
Drs. Richard P. Wolkowski and Larry G. Bundy
Two-year study shows effects of wheel compaction on yield and nutrient uptake.
Management Key In Efficient, Profitable Alfalfa Production
FFF Review
Nutrient needs and profitability must be balanced with environmental stewardship.
Alfalfa Responds To High P Rates, P Banding
R.W. Mullen, and Drs. G.V. Johnson, J.F. Stritzke, J.L. Caddel, S.B. Phillips, W.R. Raun
Oklahoma State University trials show that additional profit may be realized because implement and labor costs are decreased due to fewer applications.
Sulfur Applications Boost Alfalfa Yields
Dr. Richard Koenig, kevin Heaton, and James Barnhill
In sites marginal or deficient in sulfur, tests indicate that consistent responses to sulfur fertilization can be achieved.
Balanced P and K Applications Crucial to Optimum Alfalfa Yields
W.K. Berg, Drs. B.C. Joern, K.D. Johnson, S.M. Brouder, and J.J. Volenec
Tests conducted at Purdue show the grave consequences of adding P without K.
Keep Close Watch on NPKs Fertilization of Alfalfa
Dr. Richard Koenig
Some form of soil and tissue testing must be used to identify deficiencies and monitor nutrient status.
Late-season Applied N Can Increase Alfalfa Yields
Drs. W. Raun, G. Johnson, S. Phillips, W. Thomason, Mr. J. Dennis, Mr. D. Cossey
Increased yields due to applied N found in last or second to last harvest.
Low Salt NPK Fluids Improve Alfalfa Yields
Drs. Terry Tindall and Galen Mooso
Yields were impressive, with over a 3-ton (65% moisture ) improvement over GSP averages.
Potassium Boosts Almond Yields Via Irrigation
Drs. R.D. Meyer, J.P. Edstrom, L.J. Schwankl
Yield differences over control are significant in micro-sprinkler system but not in single- or double line drip systems.
Trials Prove K Fertilization of Apples can be Beneficial
Drs. Gerry Neilsen and Denise Neilsen
Studies conducted in semi-arid region of British Columbia on potassium- and magnesium-deficient, coarse-textured soils.
Apple Orchards Respond To Boron Fertigation
Drs. G. Neilsen, D. Neilsen, E. Hogue, Mr. L. Herbert
Canadian studies show increase in leaf and fruit boron concentrations.
A Closer Look At P And Water Management On Productivity Of Apple And Sweet Cherry
Drs. G. H. Neilsen, F. Kappel, P. Toivonen, and D. Neilsen
Five-year study shows benefi ts of P fertigation on apple; research on sweet cherry in early stages.
Nutrient Demand High In Bermudagrass
Drs. B.C. Darst, J.N. Pratt, H.D. Pennington, W.B. Gass
Studies show yield benefits of proper fertilization on southern dairy pastures.
Multi-crop Responses To Starters Vary
Dr. Paul E. Fixen and Dr. Raun D. Lohry
Researchers report on yield responses to starters applied on soybeans, canola, sorghum, potatoes, and sugar beets
High Fertilizer Rates Placed Near Seed Benefit Wheat/Canola
Drs. L.D. Bailey and C.A. Grant
Studies, using fluids on zero- and conventional-till, show greater risk with canola than wheat.
What About ‘One-Pass’ Fertilization/Seeding?
Drs. Adrian M. Johnston and Cynthia Grant
Canadian studies with liquids show minimal effect on wheat germination and maintenance of yields. Not so with barley and canola.
NBPT Reduces Seedling Damage In UAN Trials
Drs. C. A. Grant, D. A. Derksen, D. McLaren
Canadian no-till canola studies find NBPT helps maintain stand density when increasing rates of side-banded UAN in certain soils.
UAN Demonstrates Its Effectiveness In Western Australia
Industry at Work
Advantages of fluids catching on in Western Australia where their use is expanding.
Applying Some Starter N at Seeding Critical in Spring Wheat and Canola
Drs. G. Lafond, S. Brandt, W. May, C. Grant, A. Johnston
Canadian researchers speculate that 50 percent of total N required should be applied at seeding to minimize risks with postemergent N applications.
Post-emergent Nitrogen Applications Have Potential for Increasing N-Use Efficiency in Spring Grains
Dr. G. Lafond, S. Brandt , W. May, C. Holzapf el and Dr. A. Johnston
Provisos are that some starter N is applied at time of seeding, but the amount of starter N is dependent on how much risk the grower is willing to assume by going with more N after crop emergence.
N Management, Plus Optical Sensors, Helps to Refine N Rates
Drs. G. Lafond, C. Holzapfel, and W. May
Matches crop with soil and crop conditions to enhance yields.
A Closer Look At P And Water Management On Productivity Of Apple And Sweet Cherry
Drs. G. H. Neilsen, F. Kappel, P. Toivonen, and D. Neilsen
Five-year study shows benefi ts of P fertigation on apple; research on sweet cherry in early stages.
NPK Inputs At Optimum Growth Stage Critical For Maximizing Yields In Irrigated Chilies
Dr. J. C. Silvertooth, R. Soto-Ortiz, Dr. A. Galadima
Two-year fi eld studies conducted in Arizona and New Mexico to collect data for future management and scheduling.
What about Foliar NPK On Citrus?
Drs. L.G. Albrigo and J.P. Syversten
Florida researchers are finding that these sprays at bloom and post-bloom enhance fruit set and yields.
Calcium Nitrate Pays Off on Citrus
Industry At Work
Research indicates increased productivity and profitability, root health, and tree longevity.
Efficient Management of Water, Nutrient Resources
Assessing potential for drip irrigation and fertigation
Dr. F. E. Below, Dr. T. Beyrer, J. Seebauer and Dr. R. Bender
A Look at Effects of In-Furrow Applications of Potassium on Corn
Dr. Antonio Mallarino, Mr. Nicolas Bergmann, and Dr. Daniel Kaiser
Iowa on-farm fluid trials show mixed results regarding nutrient uptake, early growth, and actual grain yield after applying starter K.
A Further Look into Fertilizer Recommendation Adequacy Regarding Phosphorus and Potassium
Drs. Dale Leikam, Gyles Randall, and Antonio Mallarino
Farmer-specific goals should be incorporated into the decision-making process.
Are Current Fertilizer Recommendations Adequate?
Dr. Gyles Randall
Corn being a primary responder, yield goals in the next 20 years are targeted at 250 to 300 bu/A by some in the seed industry.
Optimizing Nutrient Management for Sustainable Bio-energy Feedstock Production
Drs. John Kovar and Douglas Karlen
Studies conducted using NPKS fluid fertilizers to enhance corn grain and biomass productivity.
Starters Show The Way in Minnesota Studies
Drs. Gyles Randall and Jeff Vetsch
Yields 10 to 15 bu/A higher than in no-starter control plots.
Starter Fertilizers Show Significant Corn Yield Increases Compared to No-Starter Checks
Dr. R. W. Heiniger
No consistent yield advantage was noted using additives, spanning the ten site-years of our ’07-’08 studies.
What is the right Nutrient Mix in Tough Economic Times?
Dr. Randy Brown
More and more, farmers are looking for help in determining correct nutrient management strategy.
Are Farmers Reaching Yield Potential In Corn?
Dr. D. Walters, K. Cassman, A. Dobermann, J. Specht, H. Yang, A. Wingeyer
Research is demonstrating otherwise, showing a large gap remains between average corn yields currently achieved by farmers and the yield potential ceiling.
Timing of N and P Crucial In Achieving High Corn Yields
Dr. M. Alley, M. Martz, and Dr. W. Thomason
Inadequate N availability during first six weeks after planting can result in reduced yield potentials.
What About Foliar P On Corn and Winter Wheat?
Drs. K. Girma, B. Raun, H. Zhang, J. Mosali
Oklahoma studies show peak yields when P is foliar applied.
Starters Bump Corn Yields 17 bu/A Versus No-Starter Controls
Dr. Gyles Randall and Jeff Vetsch
Minnesota 2004 study showed that yields tended to be greater when sulfur was included in the starter in a wet, cool year.
Moving Toward A Global Approach To Nitrogen Management In Maize
Drs. Daniel Walters, Tri Setiyono, Haishun Yang,
Kenneth Cassman, and Achim Dobermann
Maize-N model computer simulation program recommends nitrogen rates for maize crops.
Achieving 300 Bu/A Corn Sustainability
Drs. Laura F. Gentry and Fred E. Below
Involves agricultural intensifi cation that pursues higher yields, biofuel production potential, and preservation of our soil and water resources.
Continuous Corn Yields Enhanced via NPS Combinations
Jeff Vetsch
Starter fluid combinations in conservation-till boost early plant growth and yields.
Enhancing Continuous Corn Yields
Via ATS placement methods
Drs. D. Kaiser and J. Vetsch
Weather and Climate
Risks and Effects on Agriculture
Dr. E. Snodgrass
Value of Fluid Fertilizers
Two-day forum shows many advantages of using fluids to increase crop yields.
FFF
Sidedressing Potassium and Nitrogen on Corn
Dr. R. D. Miller
Evaluations made on yield effects.
Impact of Nitrogen Timing On Corn Production
Dr. J.E. Sawyer, Dr. D.W. Barker, Mr. J.P. Lundvall
Report summarizing studies conducted in the past twelve years on the effect of N application timing on corn production.
Efficient Management of Water and Nutrients
F. Below, T. Beyrer, A. Mastrodomenico and J. Seebauer
In drip irrigation and fertigation.
Genetics Important in Nutrient Removal
Drs. R. Helms, J. Grove, and Dr. L. Murphy
Modern high-yielding crops remove more nutrients per unit of yield.
Genetics Important in Nutrient Removal
Drs. R. Helms, J. Grove, and L. Murphy
Modern high-yielding crops remove more nutrients per unit of yield.
Implementing High-Yield Irrigated Corn
Russell French, Robert Bowling, Alyssa Abbott, and Mike Stewart
Requires research and adapting for profitable production.
Increasing Corn Yields Via Stover Removal Using Fluids
Drs. Laura F. Gentry and Fred E. Below
Study shows that using proven technologies increased yields.
N Use Efficiency Improved On Dryland Corn
Dr. Pawel Wiatrak
Clemson algorithm successfully used in Southeastern Coastal Plains.
Unlocking The Secrets of Carbon/Nitrogen Cycling
Drs. A Dobermann, D. Walters, F. Legoretta, T. Arkebauer, K. Cassman, R. Drijber, J. Lindquist, J. Specht, and H. Yang
Corn yields and N-use efficiency highest in intensive corn/soybean systems.
Is Fertilizing For Grain Quality Different From Fertilizing For Yield?
Dr. Fred Below, Juliann Seebauer, and Martin Uribelarrea
Illinois studies show that N rate needed to maximize grain protein is higher than that needed to optimize grain yield.
Corn Yield Responses to Starters Vary with Climatic Conditions
Drs. E,C. Varsa and S.A. Ebelhar
Nitrapyrin additions to fluid starters have significant effect on early growth in 1996 trials conducted by Illinois researchers.
Doing Things Right
Francis Childs
Iowa corn champ tells how he has been able to top 300 bu/A.
N Fights Corn Root Worms?
Dr.Walter E. Riedell
Data from South Dakota research suggest that N management could play an important role in improving tolerance to corn root worms.
Effects Of Seed-placed P Studied
Jim Gerwing, Dr. Ron Gelderman and Anthony Bly
South Dakota researchers find a number of variables determine tolerance of corn to P placed close to the seed.
Corn Hybrids Vary In Response To Starter Fertilizers
Drs. W. B. Gordon, D. L. Fjell, and D. A. Whitney
Possibility of different rooting characteristics in hybrids prompts this two-year study of selected corn varieties grown under no-till, dryland conditions.
Starters Perform More Consistently Than Seed-Placed Fertilizers
K.B. Ritchie, Dr. R.G. Hoeft, Dr. E.D. Nafziger, L.C. Gonzini, J.J. Warren
Illinois researchers compare 2 x 2 starter with seed-placed fertilizer treatments in no-till corn field studies.
Phosphorus Improves Yields In Corn/Wheat Rotation
Drs. M. Ashraf, G.M. Pierzynski, W.B. Gordon, R.E. Lamond
Researchers report, however, varying P levels in soil had an effect on some responses.
Nitrification Inhibitor in Fluid Starters Improves Corn N Uptake
Drs. D.D. Francis, J.W. Doran, R.D. Lohry
Nebraska research also shows increased microbial immobilization of N.
Nitrification Inhibitor/Fluid Starter Combinations Benefit Corn Yields
Jerry Huffman
Research shows possible synergy from combining two seemingly unrelated corn production practices.
A Look at Starters on Corn
Dr. Paul E. Fixen and Dr. Raun D. Lohry
How is switching to reduced tillage affecting fertilizer placement in row crops?
More Work Needed on Alternate Furrow N Fertilization
Dr. Paul W. Tracy and S. G. Hefner
Improved N-use efficiency not evident in initial corn/cotton irrigation studies.
Response To Starter Combinations Varies With Corn/Sorghum Hybrids
Drs.W.B. Gordon and G. M. Pierzynski
Kansas first-year trials using fluid combinations suggest responses can be economical for some hybrids, even on soils that are not low in available nutrients.
Corn Responds Best To Spokewheel Injected UAN In Ridge-till Trials
Drs.G.W. Randall, T.K. Iragavarapu, B.R. Bock
Minnesota scientists seek optimal N efficiency and minimal ammonia volatilization in four-year study.
Starters Boost Yields Of Corn Rotated With Cotton
by Drs. Henry J. Mascangni, Jr. and Donald J. Boquet
Louisiana three-year study shows that planting date and hybrid selection can affect corn reponse to fluid starters.
K In NP Starters Helps Bump Corn Yields
Dr. Barney Gordon
Three-year study shows that adding potassium can supply extra punch to push yields higher, even though soils already test high in P and K.
Mega-Yields With Twin-Row Planting
Gene and Dean Carstens
Authors foresee exceeding 300 bu/A corn and 85 bu/A soybean yields at a profitable level and with no adverse environmental impact.
What About Starter Placement in High Phosphorus Soils
F. Ronald Mulford
Maryland researcher takes a look at alternative methods of placing starters in soils testing excessively high (above 205lbs/A of P2O5).
P Starters Bump Yields In Corn/Soybean Rotations
DR. GYLES RANDALL AND JEFFREY VETSCH
Researchers stress that optimum placement of phosphorus (P) is essential in reduced-till systems, especially in soils testing low in P.
Corn Responds To Sulfur Fertilization On Eroded Soils
Dr. Howard J. Woodard and Anthony Bly
Studies conducted in 2000 on no-till, rolling South Dakota landscape show yield variances on different slope positions.
Fluid Starters Bump Yields in High P And High K Soils
Dr. W.B. Gordon
Kansas field experiments on corn and soybeans compare two K sources and two placement methods at varying application rates.
Corn/Soybeans Respond to Starter
Dr. James R. Woodruff
Studies show that starters produce optimum responses in coastal plain soils with low Kkholding capacity.
Iron For Improved Corn Yield?
G.W. Hergert, Dr. P.T. Nordquist, J.L. Petersen, B.A. Skates
You bet. Nebraska researchers are showing that under proper ph conditions and hybrid selection, corn yield responds positively to iron applications.
All About Starters
Dr. D.L. Wright
Florida scientist offers tips on how to use starters, plus describes the many benefits that accrue from their use. He focuses on corn.
Row Width/Plant Population Affect Corn Response
Drs. P.M. Porter, D.R. Hicks, W.E. Lueschen, J,H, Ford, D.D. Warnes, and T.R. Hoverstad
Hybrid choice also influenced grain yield in three-year studies conducted by University of Minnesota scientists.
Nitrification Inhibitor Boosts Corn Yields
Dr. Sterling Olsen, D.F. Champion, Dr. Calvin Pearson, Harold Golus
Colorado researchers combine UAN with nitrapyrin to increase amount of N available to plant in the NH4+ and NO3- forms.
Effects of Residue Density on Corn Yield Research
Dr. E.C. Varsa and Stephen Hnetkovsky
Spans three-year period at two southern Illinois locations.
More Work Needed on Alternate Furrow N Fertilization
Dr. Paul W. Tracy and S. G. Hefner
Improved N-use efficiency not evident in initial corn/cotton irrigation studies.
Will Continuous Supply of NH4+-N Increase Irrigated Crop Production?
Dr. D. R. Krieg
Results of studies in the Texas South Plains showed positive responses with cotton but not sorghum.
Proper Nutrient/Water Input—Key To High-yielding Cotton
Dr. Daniel Krieg
Management of nutrient supplies, especially nitrogen and phosphorus, ensures deficiencies will not occur during early stages of fruit development.
Foliar Boron Bumps Cotton Yields
Dr. James R. Woodruff
Southeastern study shows that at leaf boron levels below 40 ppm at first flower, foliar boron applications improved cotton yields.
Cotton Under Water-Limiting Conditions
Dr. Dan Krieg
Being profitable under water-limiting conditions in Texas is a challenge.
A Look At Potassium Deficiency in Cotton
Tyson Raper, Derrick Oosterhuis, Leo Espinoza and Taylor Coomer
Canopy reflective indices used to examine plant available K.
Foliar Fertilization of K On Cotton Shows Potential
Dr. Derrick M. Oosterhuis
Results of three-year Beltwide study to correct K deficiencies in soil through foliar fertilization indicate need for more basic research.
Improving Cotton Production Efficiency
Dr. W.H. Frame
With differing nutrient placement
Improving Cotton Production Efficiency
Dr. W. H. Frame
With differing nutrient placement.
Mitigating Sulfur Deficiencies and Maximizing Cotton Yields
Through fluid nitrogen-sulfur fertilizer formulations.
Dr. W. H. Frame
Evaluating Soil Fertility Production Practices for No-Till Cotton Fertilization
Dr. D D. Howard
Researcher explores effects of starter, nitrogen, phosphorus, and potassium on cotton yields in different placement scenarios.
Fluid Starters Bump Cotton Yields
Drs. C.W. Bednarz, G.H. Harris, and W.D. Shurley
Net economic returns were also higher than untreated check in 23 of 30 comparisons.
Maximizing Water-use Efficiency Key In Cotton Production
Dr. Dan R. Krieg
Yields nearly double through systems approach to management.
Fluid Starters Boost Cotton Yields
Dr. Paul E. Fixen and Dr. Raun D. Lohry
Studies in Mississippi, Alabama, and North Carolina show that cotton responds well to starters.
Does N-P Starter Composition Affect Phosphate Availability in Cotton Soils?
Drs. John L. Kovar and Eddie R. Funderburg
Louisiana researchers find that N-P starters increase soil supply of phosphate even in soils that test very high, and that the amount of phosphate in the material, rather than the N:P2O5 ratio, is important.
How Can Cotton Plants Best Exploit Potassium In Soil?
Dr. G.L. Mullins, C.H. Burmester, G.L. Pate
In search of an answer, Alabama researchers vary positioning of K in soil profile to study its effects on crop yield, K uptake, and root length density.
Starters Boost Yields Of Corn Rotated With Cotton
by Drs. Henry J. Mascangni, Jr. and Donald J. Boquet
Louisiana three-year study shows that planting date and hybrid selection can affect corn reponse to fluid starters.
Interaction Between Plant Density And Water Supply Affects Cotton Yield
D.R. Krieg
Texas scientist concludes only way to reduce risk of excessive stress is to match population with expected water supply.
Foliar Potassium Bumps Cotton Yields
Dr. Bill Weir
California researcher reports consistent yield increases to foliar-applied potassium over a period of years in the San Joaquin Valley.
Cotton Starters Showing Potential In Coastal Plain
Drs. C. W. Bednarz and G. J. Gascho
Georgia scientists study effects of using fluid starters in combination with broiler litter often used on southeastern croplands.
Cotton Yields Respond To Phosphorus Fertigation
J.S. Reiter and Dr. D. R. Krieg
Texas research shows fertigation is a viable option to save cotton growers both time and money on fertilizer inputs.
Fluid Nitrogen-Sulfur Formulations In Cotton
Used to mitigate sulfur deficiencies and maximize cotton yields.
Dr. H. Frame
Starters Bump Yields In Edible Bean Country
Dr. Alan D. Blaylock
Wyoming researcher studies yield responses to variables in fertilizer applications and planting date.
Phosphorus Fertilizer Bumps Forage and Beef Production
Drs. D. Robinson, J. Sij, W. Pinchak, R. Gill, D. Malinowski, T. Baughman and Mr. S. Bevers
Forage and Beef production increased sufficiently to exceed the cost of added P.
Returns Mixed On Wheat Pasture Response To N and Maintenance P in Wheat/Stocker Systems
J. Sij, W. Pinchak, J. Ott, B. Min, D. Malinowski, D. Robinson
Even though yields were increased nearly 6 bu/A, a rough analysis shows returns were only marginally profitable.
APP Fluid Surpasses Granular In Australian Grain Trials
Dr. R. Holloway, B. Frischke, D. Brace, Dr. M.
McLaughlin, and Dr. E. Lombi
Mean grain yield was 5 percent higher on residual fluid APP plots than on granular TSP plots.
UAN Demonstrates Its Effectiveness In Western Australia
Industry at Work
Advantages of fluids catching on in Western Australia where their use is expanding.
Fertigation Enhances Grapefruit Yield
Dr. Brain J. Boman
When combined with single broadcast fertilization, fertigation of orchards produces results superior to several conventional broadcast applications.
Establishing Realistic Nutrient Removal Values for Major Crops
Dr. John Jifon
Study includes major vegetable and fruit crops grown on calcareous soils in Texas.
K and Calcium Boost Melon Quality
Drs. Gene Lester and John Jifon
Studies show foliar applications of potassium and calcium can improve melon quality and shelf life.
Foliar K Makes Difference On Muskmelon Fruit Quality
Drs. J. L. Jifon and G. E. Lester
Even though soil K concentrations were high, supplemental foliar K treatments improved fruit quality in Texas studies.
Establishing Realistic Nutrient Removal Values for Major Crops
Dr. John Jifon
Study includes major vegetable and fruit crops grown on calcareous soils in Texas.
Controlled Release Nitrogen Shows Promise on Onions
Industry At Work
Product is reportedly showing consistently higher returns on investment with onion growers in the Pacific Northwest.
Establishing Realistic Nutrient Removal Values for Major Crops
Dr. John Jifon
Study includes major vegetable and fruit crops grown on calcareous soils in Texas.
Returns Mixed On Wheat Pasture Response To N and Maintenance P in Wheat/Stocker Systems
J. Sij, W. Pinchak, J. Ott, B. Min, D. Malinowski, D. Robinson
Even though yields were increased nearly 6 bu/A, a rough analysis shows returns were only marginally profitable.
Calcium Boosts Peanut Yields
Naveen Puppala, Dr. R. D. Baker and Dr. Ronald B. Sorensen
New Mexico studies in irrigated fields document not only significant yield increases but monetary returns as well.
Split N and P Fertigation Beneficial For Pear Production
Drs. Xinhua Yin, Clark Seavert, and Jinhe Bai
Banding N and P also increases fruit yield and size in Oregon studies.
Boron Boosts Pistachio Yields
Drs. Patrick H. Brown, Louise Ferguson, and Geno Picchioni
California researchers find foliar applications are most effective after three year trials. Timing of application is critical.
Potassium Fertigation Improves Soil K Distribution, Builds Pistachio Yield and Quality
Drs. D.Q. Zeng, P. H Brown, B.A. Holtz
Available soil potassium rapidly depletes in postachio orchards where it is not applied, adversely affecting pistachio yield and quality.
Can Boron Correct Transient Nutrient Deficiencies?
Dr. Patrick Brown
Recent California experiments using foliar applications seem to indicate so. More research is needed.
Multi-crop Responses To Starters Vary
Dr. Paul E. Fixen and Dr. Raun D. Lohry
Researchers report on yield responses to starters applied on soybeans, canola, sorghum, potatoes, and sugar beets
Low Salt Fluids and Irrigated Potatoes
Drs. Terry Tindall and Galen Mooso
Maintaining adequate P availability is imperative.
Band Placement Critical To Potato Yield
Dr. Bryan G. Hopkins and Stewart C. Stephens
Field trials in southeastern Idaho calcareous soils show significant increases in tuber yield for deep-placed treatments.
Slow-release Fluid N Bumps Potato Yields Versus Other N Sources
INDUSTRY AT WORK
Trials at Cornell Cooperative Extension and University of Wisconsin compare fluid N with ammonium nitrate, urea, and ammonium sulfate.
Study Suggests No Consistent Yield Benefit To Split N Fertilization
Drs. Ramona Mohr and Dale Tomasiewicz
Tuber yield highest for the 4x split N treatments in one of four site-years in Manitoba.
Optimal Nutrient Levels Required For High-yielding Potatoes
Drs. Jeff Stark and Bryan Hopkins
Achieving optimal goals requires an efficient nutrient management program, using the most effective nutrient sources, application timings,and methods of placement.
Fine-tuning Soil/Plant Needs Critical In Potato Production
Drs. Terry A. Tindall and Dale Westermann
Western scientists probe into factors affecting potato crop needs for potassium.
Magnesium Builds Potato Profits and Quality
Dr. Ray Hoyum
Nine-year study in irrigated field shows yield bump and net dollar increase per acre.
KTS Boosts Potato Yields
Dr. Richard T. Zink
Colorado researcher explores the role of potassium thiosulfate in potato production.
Foliar Fertilization Bumps Potato Yields in Northwest
Dr. Larry K. Hiller
Rate and timing of application, plus host of other considerations, are critical in applying foliars to potatoes.
Soil Fertility, Irrigation Keys to Potato Production
Drs. T. A. Tindall and G. Mooso
Absolute essentials in producing high yields and quality tubers.
Fluids Reduce Costs Versus Dry In Drill-Seeded Rice Production
Drs. Fred Turner and Mike Jund
Banding of fluid fertilizer and early flood improved mid-season N content of plants receiving all fertilizer at planting.
Variable Rate P Application Increases Rice and Soybean Yields
Drs. T. Walker, M. Cox, W. Kingery, S. Martin, L. Oldham, J. Street
More precise application of P helps maximize yield and stabilize production
Fluids Shine in Rice Trials
Dr. Fred Turner, Mike Jund, and Mark Hebert
Texas studies show both the agronomic (yield) and economic advantages of fluid fertilizers.
Fluid Fertilizer Technology Proving Adaptable To Rice Cultural Practices
Drs. Timothy Walker, Steven Martin, Jason Bond, Nathan Buehring
Mississippi studies show yields greatest when fluids are band applied.
Potassium on Rice
D. Dunn and Dr. G. Stevens
And its effects on yield, grain quality, lodging, and stalk strength
Multi-crop Responses To Starters Vary
Dr. Paul E. Fixen and Dr. Raun D. Lohry
Researchers report on yield responses to starters applied on soybeans, canola, sorghum, potatoes, and sugar beets
Will Continuous Supply of NH4+-N Increase Irrigated Crop Production?
Dr. D. R. Krieg
Results of studies in the Texas South Plains showed positive responses with cotton but not sorghum.
Starters Bump Grain Sorghum Yields
Drs. W.B. Gordon and D.A. Whitney
Kansas experiments were conducted on both minimum-till and no-till systems, using 2 x 2 and dribble methods of placement.
Two By Two Starter Superior In Grain Sorghum Trials
Drs. W. B. Gordon and D. A. Whitney
Surface dribble applications greatly improved yields over no-starter check but were not as effective as two by two placement in Kansas minimum-/no-till experiments.
What About P Placement and Rate on Furrow Irrigated, Ridge-Tilled Grain Sorghum?
Drs. W.B. Gordon and D.A. Whitney
Three-year Kansas study shows broadcasting not as effective as banding, plus higher P rates improved yields.
Nutrient Placement Affects Yield In Grain Sorghum
Dr. Dan Sweeney
Kansas scientist compares sorghum responses to broadcast, dribble, and knifing of NPK suspension fertilizers in two-year placement study.
High Residual Soil Mineral-N Impedes Response
R. Khosla, Dr. M.M., Alley, P.H. Davis, Dr. D.E. Brann
Virginia researchers find increased residual N accumulations in soil from drought and changing crop practices can sharply reduce crop response to additional N applications.
Response To Starter Combinations Varies With Corn/Sorghum Hybrids
Drs.W.B. Gordon and G. M. Pierzynski
Kansas first-year trials using fluid combinations suggest responses can be economical for some hybrids, even on soils that are not low in available nutrients.
Sorghum Yields Similar In Placement Trials
Drs. F.W. Chichester and J.E. Morrison, Jr.
Researchers postulate soil moisture level may affect crop response in surface vs. subsurface comparison trials.
Starters Bump Sorghum Yields 18 Percent
Drs. W.B. Gordon and D.A. Whitney
Kansas researchers also find fluid starters applied at right N:P ratio improve early season growth and hasten maturity.
Limiting N Loss In No-till Corn And Grain Sorghum Production
Dr. Barney Gordon
Slow-release polymer-coated urea product are beginning to become available for agricultural use.
Late-Season Foliar Sprays Boost Soybean Yields
Dr. Gary Gascho
Yield increases as high as 9 bu/A achieved in Georgia experiments.
Does Glyphosate Gene Affect Manganese Uptake in Soybeans?
Dr. W. B. Gordon
Kansas study suggests superior yield response when manganese is added to glyphosateresistant soybeans.
Foliar K Applications Safe With Glyphosate
Drs. K. Nelson, P. Motavalli, G. Stevens, A. Kendig, M. Nath an, D. Dunn
Expect minimal soybean injury and reduction in weed control, depending on product selection and application rate.
Foliar Boron Bumps Soybean Yields
Dr. James R. Woodruff
Wisconsin, Illinois, Ohio and Missouri field studies show that boron applied at 0.25 lb/A increased yields by 3 percent, overall.
A Further Look into Fertilizer Recommendation Adequacy Regarding Phosphorus and Potassium
Drs. Dale Leikam, Gyles Randall, and Antonio Mallarino
Farmer-specific goals should be incorporated into the decision-making process.
A Look At Increasing Late N Availability In Soybeans
Dr. Ricardo Melgar
Better synchronization with N demand sought via better timing of N availability to crop.
Nitrogen Management For Soybeans a Must
Dr. A. L. Shober and R. Taylor
Economics and environment are two essentials.
Nitrogen Management For Soybeans a Must
Dr. A. L. Shober and R. Taylor
Economics and environment are two essentials
Efficient Management of Water and Nutrients
F. Below, T. Beyrer, A. Mastrodomenico and J. Seebauer
In drip irrigation and fertigation.
Genetic Gain Via Nitrogen Interaction in Soybeans
O. Ortez, F. Salvagiotti, J. Enrico and I. Ciampitti
Yield increases recorded in studies at U.S. and Argentina Sites.
Variable Rate P Application Increases Rice and Soybean Yields
Drs. T. Walker, M. Cox, W. Kingery, S. Martin, L. Oldham, J. Street
More precise application of P helps maximize yield and stabilize production
Unlocking The Secrets of Carbon/Nitrogen Cycling
Drs. A Dobermann, D. Walters, F. Legoretta, T. Arkebauer, K. Cassman, R. Drijber, J. Lindquist, J. Specht, and H. Yang
Corn yields and N-use efficiency highest in intensive corn/soybean systems.
Dealer Provides “Recipe For High-Yielding Soybeans”
INDUSTRY AT WORK
Shows customers how to become top producers by following proven six-step program.
Multi-crop Responses To Starters Vary
Dr. Paul E. Fixen and Dr. Raun D. Lohry
Researchers report on yield responses to starters applied on soybeans, canola, sorghum, potatoes, and sugar beets
Starters With Zinc Increase Bean Yields
Dr. Alan D. Blaylock
Wyoming studies also show yields increase and plants mature more quickly with later plantings.
Corn/Soybeans Respond to Starter
Dr. James R. Woodruff
Studies show that starters produce optimum responses in coastal plain soils with low Kkholding capacity.
Late-planted Soybeans Respond to Nitrogen Starter
Michael E. Starling, Dr.C.Wesley Wood, Dr. David B.Weaver
Cultivars are compared with varying responses to applied starters at low-N sites. Future studies will focus more on optimum N rates.
Fluid Starters Bump Yields in High P And High K Soils
Dr. W.B. Gordon
Kansas field experiments on corn and soybeans compare two K sources and two placement methods at varying application rates.
What About Foliar Fertilization Of Soybeans?
Drs. Antonio P. Mallarino and Mazhar UI-Haq
Though a practice not widely used by growers, renewed interest by researchers has producted some positive yield responses in Iowa studies.
P Starters Bump Yields In Corn/Soybean Rotations
DR. GYLES RANDALL AND JEFFREY VETSCH
Researchers stress that optimum placement of phosphorus (P) is essential in reduced-till systems, especially in soils testing low in P.
Mega-Yields With Twin-Row Planting
Gene and Dean Carstens
Authors foresee exceeding 300 bu/A corn and 85 bu/A soybean yields at a profitable level and with no adverse environmental impact.
Don’t Overlook Effect of Variables on P Use in Corn-Soybean Rotations
Dr Gyles Randall and Jeffrey Vetsch
Tillage systems, P placement, P levels in soils, and applied P rate can affect yields and economic return Minnesota studies show.
Weather and Climate
Risks and Effects on Agriculture
Dr. E. Snodgrass
Multi-crop Responses To Starters Vary
Dr. Paul E. Fixen and Dr. Raun D. Lohry
Researchers report on yield responses to starters applied on soybeans, canola, sorghum, potatoes, and sugar beets
Point Injection of N Shines in Sugarbeet Trials
Drs. L.W.Van Tassell, Alan D. Blaylock, Bozheng Yang
Wyoming researchers provide economic analysis comparing broadcasting with point injection and knife banding.
Using Starters to Reduce Broadcast Applications of P in Sugar Beets
Drs. Albert L. Sims and Larry J. Smith
Studies show P starters produced yields equal to or exceeding those produced by larger rates of P applied through broadcasting.
Starter Applications of APP Show Positive Response in Sugarbeet Trials
Drs. Bryan Hopkins and Jason Ellsworth
Surface banding APP (10-34-0) did not show increased sugar percent or yield; at one site it significantly reduced sugar yield.
Banded P Increases Sugarbeet Yields
Drs. Jason Ellsworth and Bryan Hopkins
Idaho studies show deep-banded APP produced the most significant increases in sugarbeet production.
UAN, AN Effective For Sugarcane in Brazil
Drs. Eros Francisco, Fabio Dias, Raffaella Rossetto, Yebin Zhao, and Luis Prochnow
Field studies show them more effective than urea.
Drip Irrigation Improves N Efficiency
Dr. T.K. Hartz
Trend in California is drip irrigation to improve water/N management and protect environment.
Trickle Irrigation: One Answer To Site-Specific Nutrient Management
Drs. Thomas A. Doerge and T. L. Thompson
Practice is combined with tissue nitrate testing used to avoid N deficiencies as well as unneeded N inputs.
Extra Crop Is Payoff In Dryland No-till Intensified Cropping System
Dr. D.G. Westfall, Dr. G.A. Peterson, R. L. Kolberg, L. Sherrod
N management improves in dryland no-till production system where cropping intensity is increased versus traditional wheat-fallow system.
Returns Mixed On Wheat Pasture Response To N and Maintenance P in Wheat/Stocker Systems
J. Sij, W. Pinchak, J. Ott, B. Min, D. Malinowski, D. Robinson
Even though yields were increased nearly 6 bu/A, a rough analysis shows returns were only marginally profitable.
Fluids Excel Over Granular On Australian Calcareous Soils
Dr. R. Holloway, B. Frischke, A. Frischke, D. Brace, Dr. E. Lombi, Prof. M. McLaughlin, Dr. R. Armstrong
Overall, 70 of 103 wheat experiments showed positive yield increases when fluids were applied.
What About Foliar P On Corn and Winter Wheat?
Drs. K. Girma, B. Raun, H. Zhang, J. Mosali
Oklahoma studies show peak yields when P is foliar applied.
Post-emergent Nitrogen Applications Have Potential for Increasing N-Use Efficiency in Spring Grains
Dr. G. Lafond, S. Brandt , W. May, C. Holzapf el and Dr. A. Johnston
Provisos are that some starter N is applied at time of seeding, but the amount of starter N is dependent on how much risk the grower is willing to assume by going with more N after crop emergence.
Starter Placement and Rate Effects Studied on Winter Wheat Production
Drs. Wade Thomason, Mark Alley, and Bob Pitman
Returns mixed at two Virginia sites in 2007 and 2008 studies.
N Management, Plus Optical Sensors, Helps to Refine N Rates
Drs. G. Lafond, C. Holzapfel, and W. May
Matches crop with soil and crop conditions to enhance yields.
A Look at the Economic Benefits of Enhanced Efficiency Nitrogen Fertilizers
Drs. C. Grant, A. Moulin, and N. Tremblay
In addition to highest possible crop return per dollar, study also considered evaluation of environmental benefits.
Can Protein Levels Be Economically Increased?
Dr. D. Brian Arnall, Mr. Jeremiah Mullock, and Dr. Brad Seabourn
Initial trials evaluated on winter wheat at two stages.
Applying Liquid Nitrogen In Spring Wheat
Dr. Olga S. Walsh, Robin J. Christiaens, and Arjun Pandey
Results show highNRG-N has an advantage in terms of protein yield and NUE.
Physically Evaluating Wheat Straw Decomposition Via Different Fertilizer Treatments
Yuxin He, Drs. DeAnn Presley and John Tatarko
Study samples indicate longer fertilizer application periods can decompose more crop residue.
Low Salt Fluid NPK Fertilizer
Drs. G. Mooso, T. Tindall and J. Stark
Increases wheat production in Idaho.
Applying Some Starter N at Seeding Critical in Spring Wheat and Canola
Drs. G. Lafond, S. Brandt, W. May, C. Grant, A. Johnston
Canadian researchers speculate that 50 percent of total N required should be applied at seeding to minimize risks with postemergent N applications.
Search To Improve P Nutrition In Wheat
Drs. C. Grant, G. Clayton, M. Monreal, N Lupwayi, K Turkington, D. McLaren
Use of mycorrhizal inoculant to encourage early-season uptake also employed in 2004 Manitoba and Alberta studies.
Nitrogen Fluids Improve Yield and Quality of Wheat
Dr. P. S. Kettlewell and Jane M. Cooper
Soil-applied and foliar N applications show positive responses in UK winter wheat studies.
Phosphorus Improves Yields In Corn/Wheat Rotation
Drs. M. Ashraf, G.M. Pierzynski, W.B. Gordon, R.E. Lamond
Researchers report, however, varying P levels in soil had an effect on some responses.
High Fertilizer Rates Placed Near Seed Benefit Wheat/Canola
Drs. L.D. Bailey and C.A. Grant
Studies, using fluids on zero- and conventional-till, show greater risk with canola than wheat.
P Boosts Wheat Forage Yields In West Texas
Drs. Travis D. Miller and Brent Bean
Researchers use irrigated vs. dryland conditions, as well as surface-applied P vs. deep-banded P in multi-site comparison trials.
P Fertility And Placement Enhance Wheat Forage Yields
Drs. Travis Miller and Brent Bean
Texas scientists emphasize the importance of adequate P in a wheat/beef grazing system.
Chloride Fertilization Bumps Wheat Yields, Profits
Dr. R.E. Lamond, David D. Roberson, Kirby Rector
Kansas researchers report yield increases as high as 23 bu/A in three-year trails and double-digit dollars returns over 16 varieties.
What About ‘One-Pass’ Fertilization/Seeding?
Drs. Adrian M. Johnston and Cynthia Grant
Canadian studies with liquids show minimal effect on wheat germination and maintenance of yields. Not so with barley and canola.
Fluids Outdual Granular In Australian Wheat Trials
Dr. R.E. Holloway, Dr. I. Bertrand, Mrs. A.J. Frischke, Mrs. D.M. Brace, and Dr. M.J. McLaughlin
Fluid sources of P, N, and Zn performed markedly better than granular fertilizers in terms of promoting dry matter, P uptake, and grain yield.
What About Starter Placement in High Phosphorus Soils
F. Ronald Mulford
Maryland researcher takes a look at alternative methods of placing starters in soils testing excessively high (above 205lbs/A of P2O5).
UAN Demonstrates Its Effectiveness In Western Australia
Industry at Work
Advantages of fluids catching on in Western Australia where their use is expanding.
Value of Fluid Flexibility In Intensive Wheat Management
Phil Needham
Nitrogen is a key component to yield and accurate timing of the appropriate form of the nutrient can reap huge rewards.
Importance of Liming in Dry Land Palouse Cropping Systems
Gudrun Mahrt
Fluid lime (NuCal) shows benefits in Palouse studies.