Soil Fertility

Fertilizer Management for Winter Wheat

August 29, 2017
With winter wheat planting drawing near, it's time to collect soil samples and determine fertilizer needs. Use the nitrogen and phosphorus information to guide your strategy.

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Taking the corn stalk nitrate test in the field

Evaluating N Management with the Corn Stalk Nitrate Test

August 23, 2017
When is this test best used? Often it may be well used to compare nitrogen uptake between two practices in corn.

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Market Journal title

Market Journal on Nitrate Leaching, Marestail Control and More

June 9, 2017

On this week's Market Journal with host Jeff Wilkerson view these segments:

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Cover of the new ISU Publication,

Iowa Releases New Publication on Use of the Late Spring Soil Nitrate Test

June 8, 2017
Following heavy spring rains, farmers may be interested in testing for soil nitrogen availability. This article notes a new publication from Iowa State University on using the Late Spring Soil Nitrate Test (LSNT) as well as other options for assessing soil nitrate.

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Chart of potential for nitrate-N leaching in spring 2017

Risk of Nitrate Leaching Across Nebraska as of May 21, 2017

May 25, 2017
Following heavy spring rains UNL soil scientists model potential loss of nitrate-N to soil leaching, finding an average 14% loss from mid-April levels, with three sites with much higher losses.

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Center pivot irrigated soybeans
Management in a successful soybean-after-soybean cropping system may require growers to make some slight adjustments in their practices, including irrigation, seed selection, and pest management.

Planting Soybean after Soybean (Part 2): In-Season Management Considerations

April 13, 2017

In Part 1 of this article, we look at considerations for planting soybean after soybean. In this article, Part 2, we share considerations for in-season management.

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Figure 1. Liquid fertilizer manifold used on a planter for applying starter fertilizer. (Photo by Charles Shapiro)

Starter Fertilizer: When is it Warranted?

April 12, 2017
As you evaluate the cost of inputs, consider this: Only focusing on expenses without subsequent income changes is misleading. The most profitable plan uses the most profitable inputs. Is a starter fertilizer one of those inputs? The authors look at university and grower research under various conditions to see when a starter fertilizer offers economic benefits.

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Cover of Nitrogen Exenders and Additives for Field Crops

Recommended Resource: Nitrogen Extenders and Additives for Field Crops

March 9, 2017
A recently revised publication, Nitrogen Extenders and Additives for Field Crops, discusses their attributes, performance, and crop yield response in various trials, and reviews related research findings from land grant universities in the North Central Region.

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