Nutrient Management

Photo courtesy of A. Larson.

Soil test levels to guide nutrient stewardship: Phosphorus and potassium focus for the North-Central region

November 12, 2021

Figure 1, Relationship between GreenSeeker NDVI and wheat biomass weight, Feekes 5, Parma ID.

Varietal response of wheat and barley to nitrogen

September 3, 2021

Figure 1. U.S. phosphorus fertilizer, recoverable manure, and crop removal (1987–2016).

Phosphorus use trends to inform 4R nutrient stewardship and reducing losses from cropland

July 6, 2021

One-pass planting and fertilizing in Manitoba. Photo by Don Flaten.

4R management of phosphorus fertilizer in the Northern Great Plains

May 27, 2021

Source: Flickr/MPCA.

Careful placement allows manure to replace starter phosphorus in corn

March 11, 2021

Figure 1. U.S. corn, soybean, and wheat grain yield and partial factor productivity (PFP) from 1964 to 2018. Nitrogen, phosphorus, and potassium PFP are shown for corn and wheat, and phosphorus and potassium are shown for soybean (USDA-ERS, 2019; USDA-NASS, 2019).

Nutrient use efficiency—A metric to inform 4R nutrient stewardship

March 10, 2021

Fabián Fernández, a soil scientist and extension specialist at the University of Minnesota, is the author of a recent article in Agronomy Journal that examines how yield and root growth in corn and soybean crops are affected by tillage, fertilizer application rates, and fertilizer placement.

Managing phosphorus and potassium Is key in conservation tillage systems

March 3, 2021

Polymer-coated urea is the most widely used controlled-release nitrogen fertilizer.

Nitrogen release from polymer-coated urea: Effect of seasons and growing degree-days

March 2, 2021

Manure injection. Photo by Edwin Remsberg.

Soil health and 4R: What practices are working?

December 29, 2020

Commercial alfalfa harvest.

Use of NPK liquids in managing irrigated alfalfa cropping systems

November 5, 2020

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