Botanical composition of winter wheat crops depending on the effect of its predecessor

T. A.  Zabarna

doi:10.31073/kormovyrobnytstvo201988-10

T. A. Zabarna Vinnytsia National Agrarian University

DOI: https://doi.org/10.31073/kormovyrobnytstvo201988-10

Keywords: winter wheat, predecessor, weeds, number, species composition, agrophytocenosis.

Abstract

The results of the long-term research on weed infestation of winter wheat agrophytocenoses considering the effect of the predecessor are presented. The influence of three common predecessors in the technology of winter wheat cultivation, namely, corn, soybean and corn, is estimated.

It has been proved that the most favorable conditions for controlling the number of weeds in winter wheat agrophytocenoses are differently achieved in different years when clover is used as a predecessor.

It has been established that the use of the optimal predecessor under winter wheat allows to reduce weed number per unit of area up to 13—18.7 %.

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