Influence of potassium fertilizers on yield of agricultural crops and potassium condition of soil in Nizhniy Novgorod region
There is given the information on the maintenance of exchange potash in soils of Nizhniy Novgorod region in the article. It is established, that against scarce balance security of soils accessible forms of an element remains stable. The analysis of a potash condition has shown, that long application of average doses of potash fertilizers basically promotes increase in the maintenance not exchange potash in soil, single entering of high doses - water-soluble калия. Results of field and vegetative experiences testify that application of potash fertilizers on light grey wood soil and leached chernozem is effective: crop increases reach 70% and more.