Aftereffect crop rotation links with winter rye and lupin on yield of barley and potatoes

Abstract

The article shows in 4 links of field rotation on the light-gray medium loamy soil effects of winter rye and lupine on the yield and quality of potato crop, spring wheat and aftereffects on the yield of third crops - barley and fifth crops - potatoes. Narrow-leaved lupine on gray forest soils of the Chuvash Republic in comparison with winter rye is the best precursor for spring wheat and potatoes. This provides not only the reliable increase of productivity of these crops, but also improve the quality of products. The starch fees per unit area also rises. It should be noted an increase of gluten content in grain of spring wheat from 20.2 % to 29.2 %. An aftereffect of narrow-leaved lupine was manifested at the third level cultures-barley and fifth-potato.