Introduction: In the face of erratic and inadequate moisture, it is important to research the fundamental elements of hard spring wheat technology in the light of climate change. Field, laboratory, assessment, and comparative methods were used. The application of microbiological biological preparations based on the history of mineral nutrition in the technologies of growing hard spring wheat was studied and analysed in depth. Plant leaf surface formation was influenced by both the context of mineral nutrition and the use of microbiological preparations. For the use of polymyxacarbonate, seed treatment with biopreparations increased the area of the leaf surface by 20.3 percent on non-fertilized areas. 20.5 percent for diazophyte and 23.9 percent for a combination of the two. It was 31.9 thousand m2 / ha for fertilisers N45R45K30, 19.1 percent more for polymicobacterin, 13.8 percent more for diazophyte, and 24.1 percent more for a mixture of preparations. Since the area of the leaf surface was very high (29.2 thousand m2 / ha), the fertilised history of "straw N10 per tonne of by-products" was successful, and with the use of biopreparations, respectively, 33.9; 32.9; 36.4 thousand m2 / ha. The number of viable stems per unit area and the weight of grain from one ear decide the yield of hard spring wheat. The highest yield was in areas planted with polymicobacterium and diazophyte inoculated seeds on the fertiliser background N45R45K30 - 3.50 t / ha, which is 1.47 t / ha (72.4 percent) higher than plots without mineral fertilisers and biopreparations (2.03 t / ha). Applying fertiliser to hard spring wheat is a sensible way to boost yields. With the mandatory treatment of seeds before sowing with a mixture of biological products ("N10 straw per tonne of by-products"), grain yield was 3.16 t/ha, which is 1.13 t/ha (55.7 percent) higher than non-fertilized cultivation. Conclusions: In conditions of unstable moisture, it is important to apply pre-sowing seed treatment with diazophyte and polymicobacterin preparation on the background of straw predecessor, followed by the application of N10 per tonne of by-products, which will ensure a yield of 3.16 t/ha of wheat grain. In the absence of predecessor by-products on the ground, pre-sowing seed treatment with diazophyte and polymicobacterin preparations, as well as the application of N45R45K30, should be used, resulting in a grain yield of 3.50 t/ha.
Please see the link - https://www.ikprress.org/index.php/PCBMB/article/view/5663
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