Fadkin G., Vinogradov D., Shchur A., Gogmachadze G.

Migration of nitrogen in the “fertilizer–soil–plant” under the influence of continuous application of fertilizers

Presents the average long-term data content of soil nitrogen, depending on the application of nitrogen fertilizer forms. Based on this observed a certain pattern: a decrease in the content of total and mineral nitrogen in the soil without the use of fertilizers and stabilization in the dynamics in the application of nitrogen fertilizer forms and wavy change to the content of easily hydrolyzable nitrogen: 3-5 rotations of the rotation – gradual increase of the metric value to the 10th rotation – a sharp decline.

Keywords: GREY FOREST HARD LOAMY SOIL, FORMS of NITRIC FERTILIZERS, AMMONIAC SALTPETER, CALCIUM SALTPETER, SODIUM SALTPETER, AMMONIUM SULFATE, AMMONIUM CHLORIDE, AMMONIA WATER, UREA, TOTAL NITROGEN, EASILY HYDROLYZABLE NITROGEN