Oklahoma State University

Contact Info


Hailin Zhang
Nutrient Management Specialist
Dept. of Plant and Soil Sciences
Oklahoma State University
368 AG Hall
Stillwater, Oklahoma 74078

Phone: (405)-744-9566

(405) 744-0354


Application Methods

Application Methods

Manure Spreader
Irrigation System


Manure can be applied to land by surface broadcasting using a manure spreader, irrigation system, or tank wagon followed by plowing or disking, by broadcasting without incorporation, or by knifing under the soil surface. Maximum nutrient benefit is realized when manure is incorporated into the soil immediately or soon after application. Immediate incorporation of solid manure minimizes nitrogen loss to the air and allows soil microorganisms to break down the organic fraction of the manure. Injecting, chiseling, or knifing liquid manure beneath the soil surface reduces nitrogen losses by volatilization and potential runoff. Incorporation of either solid or liquid manure also reduces odor problems. Nitrogen loss by ammonia volatilization from surface applications is greater on dry, warm, windy days than on days that are humid and/or cold. To prevent local high concentrations of ammonium or inorganic salts which can reduce germination and affect yields, manure should be applied uniformly (See Classification of Irrigation Water Quality and Reclaiming Slick Spots and Salty Soils for salinity related information).

Phosphorus and potassium are not as mobile as nitrogen, so incorporation of manure will minimize phosphorus and potassium losses due to runoff, and increase their agronomic values.



Litter Application Truck
Application 1
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