Fertilizer

Nebguide g2322

New NebGuide - Crop Management to Reduce Soil Nitrous Oxide Emissions in Nebraska

February 24, 2020
A new NebGuide, G2322, authored by Bijesh Maharjan, Virginia Jin, Laila Puntel, Javed Iqbal, Tyler Williams, Humberto Blanco and Charles Wortmann, is available in both html and PDF formats.

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Figure 1. Farmers examining different fertility treatments during 2019 August Field Day near Grant, NE.
Figure 1. Farmers examining different fertility treatments during 2019 August Field Day near Grant, NE.

Soybean Fertility Study in Western NE: What is Limiting High Yield and Protein?

February 7, 2020
Public universities and private companies were contacted early in 2019 to provide input on the study protocol that would compare multiple fertility programs for soybeans in western NE. A total of 12 fertility programs were compared.

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tractor hauling poultry litter

Poultry Litter’s Agronomic and Natural Resource Benefits

January 8, 2020
Many Nebraska farmers are experienced with using beef feedlot and swine manures as fertility products. Over the next few years, Nebraska crop farmers may have opportunities to consider using broiler poultry litter as a soil amendment and fertilizer.

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Figure 3

Agronomic Management for Reduced Nitrate Leaching

January 7, 2020
The leaching of nitrate to groundwater and the increasing occurrence of groundwater with excessive nitrate levels for human consumption is a major concern in Nebraska. The amount of leached NO3- depends on soil NO3- concentration at different soil depth layers and the quantity of water movement downward through these soil layers to beyond the root zone.

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Nebraska NRCS soil survey map of K-feldspar

Soil Potassium Availability: The Roles of Manure, Irrigation and Potassium Feldspar

December 17, 2019
Why do Nebraska soils tend to have high potassium (K) availability, even with high yields and often without fertilizer K application? Why are yield responses to fertilizer-K infrequent?

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Laila Puntel

New Soil Scientist/Precision Ag Specialist Joins Agronomy

October 4, 2019
Laila Puntel's focus will be on improving efficiency and profitability of soil nutrient management, particularly through the use of precision ag technologies. She will be conducting research at university centers and one-on-one with growers through on-farm research.

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Chart showing corn yield response to various levels of nitrogen fertilizer

The Difference between Maximum Profit and Maximum Production

September 26, 2019
In this week's Cornhusker Economics Nebraska Extension Agricultural Economist Matt Stockton looks at corn yield response to N and provides an economic analysis of N application rates.

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Price adjustment graph for N in corn

Nutrient Management Suggestions for Corn Updated in EC117

July 9, 2019
The Nebraska Extension Circular, Nutrient Management Suggestions for Corn (EC117), has been updated to account for residual soil nitrate-N and provide an alternative for determining fertilizer-P rates.

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