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Types of main tillage and their influence on the yield of spring barley in the conditions of the Luhansk oblast

Changes in the climate conditions of the steppe zone of Ukraine, frequent placement of spring barley after the sunflower predecessor and many other reasons, cause the necessity to improve the system of basic tillage for spring barley in the direction of its minimization taking into account the technologies of growing crops. The issue of basic tillage for spring barley after sunflower, which is fairly common predecessor today, has not been studied yet. In this case, based on the complex experimental studies the effect of different types of basic tillage and their impact on the yield of spring barley in the Luhansk region has been studied. The aim of the research was to determine the best methods of basic tillage for spring barley with general background post-harvest residues of all field crops, application of mineral fertilizers and the influence of these factors on the yield of spring barley in Luhansk region. The following types of spring barley were sown during the experiment – Adapt, Stalker, Helios, Vakula. As a result of the conducted researches the best indicators were obtained at non-shelf tillage with the usage of modern aggregates and with joint application of Ammonium nitrate and Diammonium phosphate, at all biometric indicators of the studied culture. Since such tillage has not only loosened it well, but also ensured better accumulation and retention of moisture, which further affected the yield of spring barley plants in the area of insufficient moisture. Such strains as Stalker and Helios had the highest rates with the combined use of Ammonium Nitrate and Diammonium Phosphate in shelfless tillage at the level of 47,5 c/ha and 58,8 c/ha accordingly. Shelf tillage gave less results with such a fertilizer system. The lowest indicators were in the variant of disking in all studied samples