Agrochemical estimation of arable lands in Jewish autonomous region for the period of 1963-1992

A retrospective analysis of the territorial distribution of arable soils with different agrochemical indicators in the territory of Jewish Autonomous Region from 1963 to 1992 was carried out by the author. It shows that the application of mineral and organic fertilizers in optimal doses and implementation of all technological processes in agriculture has increased the yield of agricultural crops and met the population needs in these products.