Soybean Cultivation Cost-effectiveness Depending on Bacterial Preparations and Growth Stimulants Use
Researches and analysis of the data obtained on the basis of the Armavir Experimental Station of the All-Russian Scientific Research Institute of Oilseeds establish the most effective bacterial preparations, growth stimulants and their combination for soybean cultivation under conditions of unstable moisture on ordinary chernozem. The soybeans yield during the seed treatment with the rhizobial preparation Nitrofix P (2 kg/t) in combination with the film former was the highest and amounted to 1.83 t/ha, which is 0.23 t/ha higher than in the control. It also obtained the maximum collection of plant protein – 0,69 t/ha. The highest yields (1.72–1.83 t/ha) and relatively low production costs allow getting quite high profits (19,472–22,191 rub/ha) with complex soybeans seed treatment with rusobial preparations containing a film former. The maximum profitability in the study of seed treatment with rhizobial preparations was obtained in the variants with the use of the preparations Nitrofiks P and Nitrofiks Zh in combination with the film-forming agent – 95–107 %, which is higher in comparison with the use of bacterial preparations by 2–15 %, and with the control by 12–24 %. The most cost-effective (107 %) was the use of rhizobial Nitrofix preparation in its powder form (2 kg/t) combining with a film former. The obtaining soybeans yield – 1.73 t/ha in the treatment of seeds combining with a rhizobial preparation in combination with a growth stimulator Nagro bioenergetic made it possible to get the highest profit – 19 668 rubles/ha. Given the cost of production and profit per hectare rate, the highest level of profitability was obtained when applying seed treatment with the rhizobial preparation Nitrofiks Zh in combination with Albit and Nagro bioenergetic growth stimulants: 91–94 %. Hence it has been established that the bacterial preparations for treating seeds in combination with a film former and growth stimulant use provides high profits and increases the soybean cultivation profitability level.
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