POTASSIUM ACCUMULATION IN PERMANENT GRASSES THAT GROW ON THE DRAINED SOILS
On the ground of own experimental research and the literature data analysis it was established that permanent grasses that grow on soils with high level of exchangeable potassium accumulate up to 4-5% of К2О in dry matter. Specialists believe that the acceptable levels of potassium contained in animals' food are considerably exceeded. Another point considered is the close connection between the water application rate in the livestock waste and the potassium accumulation in plants. In order to make the quality of the food better it is suggested to stop using potassium for fertilizing the first-year grasses which grow on sabulous soils with the level of exchangeable potassium more than 200 mg/kg.