Volga Region Farmland (Jun 2020)
AGROECOLOGICAL EFFICIENCY OF SEED INOCULATION WITH BACTERIAL FERTILIZERS AND COMPLEX MICRO-ELEMENT FERTILIZERS IN RESOURCE-SAVING TECHNOLOGY OF GROWING HUNGARIAN CLOVER
Abstract
The results of studies of the effect of bacterial and complex fertilizers with microelements in chelated form on the formation of the parameters of photosynthesis, symbiotic activity, and productivity of Hungarian clover of the ANIK variety are presented. It was found that inoculation of seeds with biologics of the associative group and complex fertilizers with microelements in chelated form activated growth, morphogenesis, the symbiotic and photosynthetic activity of Pannonian clover plants. The number and weight of active nodules in relation to the control increased by 29.2-167.6 million units/ha and 77.7-564.1 kg/ha, respectively. The maximum parameters of the symbiosis of agrocenosis of Hungarian clover (active nodules – 221.8 million pcs/ha with a mass of 893.7 kg/ha) were formed during the inoculation of clover seeds with the biological fertilizer Gumariz together with the silicon-containing preparation NanoKremny. The leaf area of Hungarian clover agrocoenoses of the first year of use amounted on average to 37.6-53.6 thousand m2/ha for two years according to the experimental variants. In comparison with the control, it increased by 1.3-1.9 times. The highest indices of the clover leaf surface (53.6 thousand m2/ha) were observed during the integrated treatment of seeds with Gumariz together with NanoKremny, in the control – 28.7 thousand m2/ha. On average, over two years, the collection of dry matter of Hungarian clover of the first year of use according to the experimental variants amounted to 7.29-12.48 t/ha, of feed units – 5.25-9.05 t/ha, of digestible protein – 0.8-1.39 t/ha, of exchange energy – 58.69-100.47 GJ. The highest productivity of Hungarian clover was obtained by inoculating seeds with the Gumariz biological product together with the NanoKremny preparation: dry matter – 12.48 t/ha, feed units – 9.05 t/ha, digestible protein – 1.39 t/ha; the yield of clover seeds was 786.8 kg/ha, which was 2.2 times higher than the control indicators; profitability when cultivating for seeds – 187.3%, for fodder purposes – 149.6%, energy efficiency coefficient – 2.24 and 1.89 units.
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