The short duration monitoring results of the basic agrochemical indexes of soil at sugary soghum cultivation are examined. The influence peculiarities of sugary sorghum on humus content, mobile phosphorus and changeable potassium in the arable soil layer under the field crops are investigated. Data regarding the crops action on nitrogen nitrate and productive water reserves in the soil layer are collected. The action of this crop on the harvest and sunflower quality, maize and pea for beans is discussed. Sugary sorghum influence at hydric reserve formation of the soil in comparison with other crops from crop rotation is studied. The remanent action of mineral fertilizers on the crops is examined.