Перспективность применения минеральных серосодержащих удобрений для повышения продуктивности возделывания зерновых культур на почвах с низким содержанием серы

Theoretical and practical aspects of the importance of sulfur in modern technologies of grain crops cultivation on soils with a low content of available forms of sulfur are presented. The importance of sulfur as one of the most important elements of nutrition in the cultivation of grain crops is shown. The data of agrochemical surveys on the content of mobile forms of sulfur in gray forest soils of the Central Non-Chernozem region are presented. It is shown that most of the areas of gray forest soils have low or very low content of gross and mobile forms of sulfur. Practical field studies have been conducted on the effectiveness of various types and forms of application of mineral sulfur-containing fertilizers in the cultivation of spring wheat on light gray forest soils of the Central Non-Chernozem region. The obtained practical data showed that the results of the use of sulfur-containing mineral fertilizers and their agroeconomical efficiency are directly related to the content of sulfur forms available to plants in the soil. The greatest agronomic effect from the use of sulfur-containing mineral fertilizers in the cultivation of spring wheat in the conditions of the Central Non-Chernozem region was obtained on soils with a low content of mobile sulfur. At the same time, the greatest effect was obtained when applying the full norm of NPK and sulfur with mineral fertilizers. When applying increased doses of sulfur-containing fertilizers, it is necessary to control the level of soil acidity and carry out the necessary measures for their deoxidation. The obtained practical data from field experiments show the high efficiency and prospects of the use of sulfur-containing mineral fertilizers in the cultivation of spring wheat on soils with a low content of mobile forms of sulfur.