Soil-improving and productive value of meadow clover in the North-West region

The factor keeping the intensive plant growing development in is a low natural productivity of agricultural pastures. Nowadays an active research of new systems of soil cultivation is carried out the using of which will allow increase the efficiency of agriculture and make it a resource-keeping one. The adaptive intensification of agriculture which orients onto the necessity to use natural resources more entirely via biologizing intensification processes in agro- and ecosystems is perspective. The usage of feed crops as green manure by the influence on the soil fertility is close to the manure application, but by the expenditures is as 1.5-2.0 times costless. Out of perennial legume grasses meadow clover sawn practically in all the farms is the perspective one as a green manure in north regions of European Russia. It is the culture more acceptable to the growing under soil-climatic region conditions. Performed studies allow make a conclusion that two-aimed usage of clover for feeds and green manure makes it possible to obtain not only high yields of green mass but to provide rich and positive humus balance in the soil.