Nutrient Management

Managing the legacy of P inputs and outputs is an integral part of 4R Nutrient Stewardship. Illustration courtesy of the USDA Legacy Phosphorus project.

Managing legacy phosphorus with 4R nutrient stewardship

August 18, 2025

Dr. Christopher W. Rogers (USDA-ARS, Kimberly, ID) assessing early-season barley growth at the University of Idaho R&E Center/ USDA-ARS Small Grains and Potato Germplasm Unit (Aberdeen, ID).

Nitrogen management for irrigated hull-less food barley

June 26, 2025

Photo by Krista Lundgren/USFWS and published under this license: https://creativecommons.org/licenses/by/2.0/deed.en.

Does slope influence soluble phosphorus losses in spring snowmelt runoff in the Prairie Pothole Region of Canada?

May 30, 2025

Figure 1. Left: Satellite imagery with a normalized difference red edge (NDRE) layer of a corn field in west-central Nebraska. Right: Photo taken of the actual site during field scouting.

Imagery-based crop nutrient management

March 3, 2025

Illustration courtesy of Adobe Stock/fancytapis and Julia.

Nitrogen cycle: Unraveling microbial dynamics for optimizing nitrogen use

February 19, 2025

Photo courtesy of Adobe Stock/Budimir Jevtic

Crop selection and breeding and phosphorus cycling

January 22, 2025

USDA photo by Preston Keres.

Sulfur, the secretive limiting factor for alfalfa

December 30, 2024

Continuous measurement flux-gradient technique

4R fertilizer management strategies help tame N₂O emissions in Manitoba

December 23, 2024

Photo courtesy of Adobe Stock/Yaroslav.

Potential Blind Spots and Hot Spots for Nutrient Loss

December 10, 2024

Fertilizer manufacture, Photo by Wikimedia Commons/Alexander Hatley

Fertilizer industry innovations supporting climate mitigation

December 6, 2024

2026 Sustainable Agronomy Conference

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