Changes in yield and agrochemical properties of the soil when using unconventional organic fertilizers on spring barley crops

This article presents the results of many years of field research on the effect of non-traditional organic fertilizers on the yield and agrochemical properties of the soil on spring barley crops. Recently, much attention has been paid to the problem of soil degradation and a sharp decrease in their potential fertility. The use of organic fertilizers is the main condition for maintaining and increasing soil fertility, which also contributes to obtaining high and stable yields. In addition to traditional organic fertilizers, other types of organic fertilizers must also be used. In this regard, the purpose of the research was to study the effect of non-traditional organic fertilizers on the yield and agrochemical properties of the soil on spring barley crops. Field experiments were laid in the crop rotation of the Scientific and Production Center "Integration" in 2021-2022. Plants were grown on plots of 10 m2 in quadruple replication. The method of placement of experimental plots is systematic. The object of research was the spring barley variety Suzdalets. Non-traditional organic fertilizers were sugar production waste - beet pulp and defecation. The results of the studies showed that the use of different doses of beet pulp led to a decrease in the yield of spring barley compared to the control variant. At the same time, the joint application of beet pulp at a dose of 150 kg/ha and defecation at a dose of 15 t/ha contributed to an increase in the yield of this crop by 33% compared to the control. The introduction of various doses of beet pulp was reflected in an increase in soil acidity, and the joint application of beet pulp at a dose of 150 t/ha with defecation, on the contrary, led to soil alkalization. It is noted that the use of increased doses of sugar beet pulp together with defecation on spring barley crops provides an additional supply of mobile phosphorus and exchangeable potassium to the soil. It should be noted that this mixture of sugar production wastes is the most acceptable type of their use as non-traditional organic fertilizer.