Power efficiency of agrotechniques in different crop rotations

Abstract

The purpose. To determine link between power efficiency of agrotechniques of growing crops in grain-beet crop rotation and its structure and fertilizer system. Methods. System analysis, long field, rated by O.K. Medvedovsky procedure. Results. Power efficiency of agrotechniques is studied depending on biological content of fertilizer systems, and saturation of crop rotation with bean cultures and cultivated crops. Conclusions. The greatest power efficiency of agrotechniques is achieved in 6-field crop rotation (row crop — 16,7%, bean cultures — 33%) at application of alternative organic-mineral fertilizer system (N43P43K43 + collateral products): power consumption of crop — 129,8 GJ/hectare, power inputs — 28,6 GJ/hectare, Ke.e — 5,4, Ke.e.s — 6,2. With increase of a share of cultivated crops up to 40% and decrease of bean cultures to 10% in 10-field crop rotation power efficiency of agrotechniques by Ke.e index dropped for 0,3, by Ke.e.s index for 2,3.