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Effects of Application Rate in Direct Land Disposal of Animal Wastes¹

Department of Agronomy, Kansas State University, Manhattan 66506

ABSTRACT

Disposal of solid and liquid animal wastes is a problem of increasing magnitude for feed-lot and dairy operators. In the plains states where the average number of beef cattle on feed per location is increasing, disposal of solid wastes is particularly troublesome. The relatively low monetary value of the nutrients contained in a ton of manure in relation to current prices for inorganic fertilizers is a detriment to long-distance transport and thereby tends to increase the tonnages of wastes applied to land close to the source.

Agronomists agree that nutrients contained in manure can be utilized effectively by plants. Use of the nutrients in manure certainly constitutes a valid link in the recycling process and tends to lower the requirement for additional fertilizer purchases. Manure applications are valued in the high pH soils of the Great Plains as an excellent measure for overcoming micronutrient deficiencies which frequently appear when land is shaped for irrigation purposes.

¹ Contribution No. 1297, Department of Agronomy, Kansas Agricultural Experiment Station.