Soil Fertility

Winter Wheat Nitrogen Applications April 25, 2018

Spring is the ideal time to apply nitrogen (N) to winter wheat to ensure top yields. Adequate N levels promote tillering, large head size, and are the primary factor determining the protein level of the grain at harvest. There are a few things to consider to optimize N applied to wheat.

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Figure 1. Corn plant leaves exhibiting zinc deficiency (left) and iron chlorosis symptoms.

Newly Revised NebGuide: Micronutrient Management in Nebraska April 24, 2018

A newly revised Nebraska Extension NebGuide, Micronutrient Management in Nebraska, addresses issues of micronutirent fertilizer use with a focus on zinc and iron. It was written by University of Nebraska-Lincoln soils specialists Bijesh Maharjan, Tim M. Shaver, Charles S. Wortmann, Charles A. Shapiro, Richard B.

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Corn leaves showing signs of nitrogen deficiency
Figure 1. Corn at V10 growth stage displaying symptoms of N deficiency (inverted V-shaped yellowing starting at the tip of lower leaves). Corn can display these symptoms when N supply is insufficient, possibly due to multiple reasons, including losses.

Nitrogen Fertilizer Stabilizers in Corn April 19, 2018

Understanding how the three types of nitrogen stabilizers work can be helpful in deciding whether to add one to your spring application. Short- and long-term studies in Nebraska offer insight into how they performed across multiple years. Now, if you only knew how many inches of rain you'd get the first six weeks after application.

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Figure 1. Nebraska soybean field with patches of iron chlorosis caused by a deficiency of iron. (Photo by Rodrigo Werle)
Figure 1. Nebraska soybean field with patches of iron chlorosis caused by a deficiency of iron. (Photo by Rodrigo Werle)

What's New with Micronutrients? April 10, 2018

Micronutrients are in the spotlight these days with new biological products coming to market. This update looks at micronutrient research updates, including which nutrients are likely to enhance profit and how results can differ among different soil tests.

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What’s New with K Fertilizer Use? April 5, 2018

Three studies with a total of 50 trials applying K at various rates to corn verified that the likelihood of a profitable response is very low if the soil test level is above 125 ppm.

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What's New with S Fertilizer Use? April 5, 2018

When is applying sulfur likely to be profitable and when is it cutting into your potential profit? This brief shares information from more than 100 university trials verifying current university recommendations.

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Alternative Nutrient Supply Products: Highlights of On-Farm Research Results April 5, 2018

Are you considering using a new soil nutrient product this season? Learn what farmers learned from these nine studies of alternative nutrient supply products and practices, conducted as part of the Nebraska On-farm Research Network (NOFRN) in 2017.

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What’s New with P Fertilizer Use? April 5, 2018

Studies conducted at three sites over six years with varying levels of phosphorus (P) applications indicate when a P application may be profitable.

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