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ARS Home » Pacific West Area » Kimberly, Idaho » Northwest Irrigation and Soils Research » Research » Publications at this Location » Publication #369211
Research Project: Improving Management Practices for Irrigated Western Cropping and Dairy Systems to Contribute to Sustainability and Improve Air Quality

Location: Northwest Irrigation and Soils Research

Title: Dairy manure applications in irrigated wheat production systems

Author
item MOORE, AMBER - Oregon State University
item Leytem, April
item Rogers, Christopher
item SMITH, ELIZA - Oregon State University
item MARSHALL, JULIET - University Of Idaho

Submitted to: Pacific Northwest Extension Publication
Publication Type: Experiment Station
Publication Acceptance Date: 2/11/2020
Publication Date: 2/11/2020
Citation: Moore, A., Leytem, A.B., Rogers, C.W., Smith, E., Marshall, J. 2020. Dairy manure applications in irrigated wheat production systems. Pacific Northwest Extension Publication. PNW734.

Interpretive Summary:

Technical Abstract: Best management practices for irrigated wheat production systems receiving dairy manure applications are provided based on field trials conducted in Southern Idaho. Findings from the research illustrated that grain protein concentration, soil organic matter, and plant available organic nitrogen (N) increase with increasing dairy manure application rate and frequency. This is beneficial for production systems with hard red wheat varieties in the rotation. However, findings from the field trials also showed that lodging, low falling numbers, nitrate leaching, and excess soil phosphorus (P), potassium (K), and salt accumulations became an issue with increasing manure application rate and frequency, illustrating that there is a limit as to the amount of manure these systems can handle.