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Weighing The Value Of Fall Vs. Spring Applications

November 12, 2013 | Posted in Nutrient Management
Source: University of Nebraska—Lincoln
As corn harvest is concluding, many farmers are turning their thoughts to preparing for next year's crop. One thought is on how to best apply nitrogen (N) fertilizers to maximize N use efficiency and corn yields. Nitrogen fertilizers can be applied at many times throughout the year including: fall, spring, preplant, at planting, sidedress, or through fertigation.
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Fall Fertilization For The 2014 Crop

November 12, 2013 | Posted in Nutrient Management
Source: The Bulletin, University of Illinois Extension — Integrated Pest Management
Corn and soybean harvest continues to move along in Illinois, and as the 2013 crops come off, thoughts turn to fall fertilization. In this article we'll discuss nutrients other than nitrogen. This will be followed soon by an article on nitrogen.
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Nitrogen Crediting For Fields With Cover Crops

November 12, 2013 | Posted in Cover Crops, Nutrient Management
Source: By: Daniel Kaiser, Fabian Fernandez, John Lamb, Carl Rosen, University of Minnesota Extension Nutrient Management Specialists

The increase number of acres planted to cover crops has raised questions on nitrogen (N) crediting for the 2014 cropping year. While there are many benefits touted for the use of cover crops, there are a lot of unknowns when determining N credits. This is especially true for mixes with multiple plant species.


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Study Challenges Soil Testing For K, Value Of KCl

November 7, 2013 | Posted in Nutrient Management
Source: University of Illinois
In the chemical age of agriculture that began in the 1960s, potassium chloride (KCl), the common salt often referred to as potash, is widely used as a major fertilizer in the Corn Belt without regard to the huge soil reserves that were once recognized for their fundamental importance to soil fertility.
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Update To Iowa Phosphorus, Potassium And Lime Recommendations

October 11, 2013 | Posted in Nutrient Management
Source: By Antonio P. Mallarino and John E. Sawyer, Iowa State University Department of Agronomy
This article highlights revisions to Iowa State University (ISU) soil-test interpretations and application guidelines for phosphorus (P), potassium (K) and lime in an update of extension publication PM 1688 "A General Guide for Crop Nutrient and Limestone Recommendations in Iowa."
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Good To Band Nutrients With Strip-Tillage

September 18, 2013 | Posted in Nutrient Management
Like a teacher giving each student individual attention so they reach their full potential, University of Illinois researcher and crop physiologist Fred Below thinks it's important to place nutrients so each and every corn plant can easily access them.
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Evaluating Late-Season Corn Nitrogen Deficiency

September 12, 2013 | Posted in Nutrient Management
Source: Anthony Bly, South Dakota State University Extension
Corn is now in the seed filling growth stages (R2-R5) when nutrient demands are put on plant leaves as the seed kernels develop. At R2 blister stage, approximately 75% of the corn plant’s required nitrogen (N) is in the plant.
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