Purpose: to study the efficiency of using stimulating biologics on the productivity of leguminous crops in irrigated agrocenoses of the Volga region.
Materials and methods. The field experience was laid in 2021–2023 on grain feed crop rotation. On the basis of the experimental production farm of the Volga Research Institute of Hydraulic Engineering and Land Reclamation, studies were conducted on the use of stimulating biological preparations in the leguminous crop cultivation: an inoculation preparation containing Mesorin 7 + Rhizotorphin, which contains a fungicide + nitrogen-producing bacteria of high concentration; micro-fertilizers according to the phases of vegetation of leguminous crops, containing trace elements and amino acids. The control option was without the use of stimulating biologics and micronutrients. The following leguminous crops were used in the experiment: Marina soy varieties, Alpha peas and Russian black beans.
Results. In the course of research, it was found that when seeds are treated before sowing with the biological preparation Mesorin 7 + Rhizotorphin, the growth of green mass from the flowering phase to the full ripeness phase of seeds is slow: peas – 1005.3–1153.5 g/m², soybeans – 2092.3–2997.3 g/m², beans – 3121.3–3324.3 g/m². When processing crops with micro fertilizers during the growing season to the phase of the beginning of bean formation, the increase in aboveground mass is: peas – 1668.5 g/m², soybeans – 2772.3 g/m², the highest value was found in beans 3140.5 g/m². The positive effect of stimulating biologics on the productivity and quality of leguminous crops when cultivated on irrigated lands was revealed. The maximum biological yield was achieved with the use of a set of micro fertilizers during the period of growth and development of soybean plants – 3.83 t/ha, peas – 1.52 t/ha, and the most promising is the production of beans with a yield of 13.08 t/ha.
Conclusions. The results of studying the features of the formation and productivity of the agrophytocenosis of leguminous crops confirmed the high efficiency of the use of stimulating biological preparations and micro fertilizers to increase the yield on irrigation.
doi: 10.31774/2712-9357-2023-13-4-314-331
biologics, grain legumes, soybeans, beans, peas, seed inoculation, micronutrient application
Shadskikh V. A., Kizhaeva V. E., Peshkova V. O. The indicators of formation of agrophytocenoses of leguminous crops using stimulating biologics under irrigation. Land Reclamation and Hydraulic Engineering. 2023;13(4):314–331. (In Russ.). https://doi.org/10.31774/ 2712-9357-2023-13-4-314-331.
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