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631.582:632.5:633.85

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.. - , 16, 2011: 126-130

INFLUENCE OF CROP ROTATIONS ON OIL CROP WEEDINESS IN

DEPENDING OF FORECROPS

Ye.O. Yurkevich

In South Steppe of Ukraine certainly the best forecrops for olive cultures:

rape winter is a pea, a wheat winter and a barley winter; sunflower a wheat winter and a barley winter. Direct dependence is set between the quantitative and gravimetric indexes of impurit by weeds and reverse between the noted indexes and productivity of agricultural cultures.

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