Change in the mineral nitrogen content in sod-podsolic soils of different granulometrical structure under the influence of various fertilizer systems

« Velikoluksky State Agricultural Academy » Abstract. The article gives the data on the soil fertility level and external factors of environment influence on the dynamics of nitrate and ammoniac nitrogen in sodlightpodzolic loamy and sandy soil. Application of both mineral and organic fertilizers promoted an increase in the mineral nitrogen content in both experiments in relation to the control.