Conservation tillage: best management practice for nonpoint runoff

Autor: T. C. Daniel, R. C. Wendt, D. H. Mueller
Rok vydání: 1981
Předmět:
Zdroj: Environmental Management. 5:33-53
ISSN: 1432-1009
0364-152X
DOI: 10.1007/bf01866608
Popis: Decisionmakers are in the process of selecting remedial measures for controlling nonpoint pollution runoff. Conservation tillage (CT) is being looked to as one of the major recommended practices. Many different systems exist and vary in the amount of crop residue left and soil roughness produced. Therefore, varying results occur in terms of yield and potential water quality impacts. Differences vary with type of tillage system, soils, geographic region, and the farmer's management. The purpose of this review is to provide material to decisionmakers that points out the assets and liabilities of the various CT systems. Tillage effects on soil characteristics and plant growth are presented and include a discussion of soil moisture and temperature, weed and insect control, nutrient availability, and yields. Water quality aspects are addressed through a discussion of the effects CT systems have on sediment, water, pesticide, and phosphorus loss.
Databáze: OpenAIRE
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