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ARS Home » Pacific West Area » Kimberly, Idaho » Northwest Irrigation and Soils Research » Research » Research Project #439352

Research Project: Improving Our Understanding of Nutrient Cycling, Soil Health, and Crop Quality in Manure-Treated Soils

Location: Northwest Irrigation and Soils Research

Project Number: 2054-12000-012-005-T
Project Type: Trust Fund Cooperative Agreement

Start Date: Jan 1, 2021
End Date: Dec 31, 2021

Objective:
Determine manure impacts on nutrient cycling, soil microbiome, crop yield and crop quality.

Approach:
Funding is being provided to support four ongoing research studies to determine the impacts of dairy manure on nutrient cycling, soil health, carbon sequestration and crop yield. The studies were initiated two to eight years ago and involve various manure treatments and crop rotations. Soil samples will be collected in spring and fall to determine changes in nitrogen, phosphorus, carbon and microbial communities. Crop yield and quality will be measured at harvest. Soil gas emissions will be measured throughout the year on two of the four studies. Overall nutrient and carbon budgets will be calculated to identify gains and losses from the various crop production practices.