AGRINOS A — this is a biological preparation containing such active substances as Azotobacter vinelandii and Clostridium pasteurianum. The preparation is used for application in various agricultural crops, including cereal, leguminous, oilseed, technical, feed, vegetable crops both in open and protected soil. Also, the preparation is applied to garden crops, corn, sugar beet, and potatoes, including retail sale to the public. The preparation can be used as part of a comprehensive approach to improving soil fertility and increasing agricultural productivity.