Soil Fertility

soybean field

Soybean Micronutrient Management in Southeast Nebraska: Chloride

November 11, 2020
In soybeans, chloride is needed for osmotic regulation in plant cells. Deficiency symptoms are not clearly described but may include chlorosis and wilting of leaves in soybeans. Toxicity symptoms include leaf tip scorching, premature yellowing or bronzing of leaves, and leaf loss.

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soybean showing boron toxicity

Soybean Micronutrient Management in Southeast Nebraska: Boron

October 29, 2020
In soybeans, boron is needed for cell walls during cellular expansion and normal development of nitrogen-fixing root nodules. Overall, soybeans are rather insensitive to boron deficiency but very sensitive to toxicity, including scorching/necrosis on the leaf edges.

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links to New Series on Soybean Micronutrient Management in Southeast Nebraska

New Series on Soybean Micronutrient Management in Southeast Nebraska

October 8, 2020
We are bringing you an extended series of CropWatch articles on micronutrient fertility and plant nutrition for soybean production in southeast Nebraska.

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watering cornfield

Crediting Essential Nutrients Applied in Irrigation Water

December 18, 2019
Crediting some of the nitrate-N applied in irrigation water for determination of fertilizer-N rates has long been advised in Nebraska.

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Soil Amendments

December 9, 2019
Soil amendments are any materials that when added to soil will improve its properties and processes. Amendments such as lime, gypsum, manure, or biochar can provide many benefits to production systems by improving soil chemical, physical, and biological properties. Some examples of production benefits from amendments include raising pH, adding nutrients, increasing soil organic matter, mitigating salt-affected soils, and improving soil water storage.

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Graph of potential N loss

Considerations for Fall Fertilizer-Nitrogen Application

October 30, 2019
Fall fertilizer applications offer cost savings and time management benefits, but also may contribute to increased soil nitrate-N leaching. With Nebraska's high soil moisture levels, consider these suggestions when applying nitrogen this fall.

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Field of wheat

New Study Helping to Guide Future Nitrogen Management of Winter Wheat for Grain Yield, Protein, and Bread Quality

October 29, 2019
Preliminary results are in from the first year of a two-year study to evaluate how soil N levels affect protein in Nebraska wheat and to provide data to revise UNL fertility recommendations for dryland wheat.

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The Science Behind 50-degree Soil and Nitrogen Application

October 8, 2019
From Water.unl.edu: When applying anhydrous or an ammonia-rich manure, wait until soils start to cool. Soil temperature affects how quickly soil microbes will process ammonium nitrogen to nitrate.

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