METHOD OF FORECAST OF CONTENTS OF EXCHANGE POTASSIUM IN TOP SOIL OF TYPICAL AND LEACHED CHERNOZEM IN CENTRAL CHERNOZEM ZONE OF RUSSIA

摘要

FIELD: agriculture.;SUBSTANCE: invention is designed for implementation in agriculture. Deposits of productive moisture are assessed in a metre layer of soil and depending on applied doses of fertilisers contents of exchange potassium in top soil are forecast from mathematic dependence.;EFFECT: invention reduces labour and expenditures and simplifies method of determination of exchange potassium contents in soil.;1 tbl