INFLUENCE OF GROWTH STIMULANTS AND MICROFERTILIZERS ON THE BUCKWHEAT PRODUCTIVITY UNDER CONDITIONS OF THE CENTRAL CHERNOZEM REGION
The author makes a study of the influence of pre-sowing treatment of buckwheat seeds (Devyatka variety) with stimulants Mival, Novosil, Epin, Zircon, Lignohumate, Rexolin ABS and their complex impact on the formation of productivity of buckwheat, investigates foliar application of stimulants Epin, Speedfol B as well as their cumulative effect on the yield of buckwheat and its structure. The experiments were carried out on the experimental plots of the Department of Crop Science of Voronezh State Agrarian University in 2008-2011. Depending on pre-sowing seed treatment, the highest average yield for the years of research (13.0 c/ha) was obtained on the variant with combined application of Epin-extra & Rexolin ABS (+42% to control variant). Application of Epin-extra + Speedfol B was the most effective foliar feeding variant (9.8 c/ha or +23% to control variant). Maximum yield in the experiment (15.6 c/ha or +52% to control variant) was obtained by combining the best variant of pre-sowing treatment of seeds (Epin-extra + Rexolin ABS) with the best variant of foliar fertilization (Epin-extra + Speedfol B), the weight of 1000 seeds was registered by 30.8 g. This variant also demonstrated the highest weight of brushes on one plant (0.79 g). Maximum weight of 1000 seeds was obtained on the variants of pre-sowing seed treatment with stimulants Novosil and the mixture of Novosil + Rexolin ABS (31.0 g). Maximum branchiness of the 1st order of the buckwheat plants (2.33 pcs) was registered on the variant of pre-sowing treatment of seeds with Epin-extra + Rexolin ABS as compared with control variant (1.89 pcs). Over the period of experimental studies pre-sowing seed treatment on the average had more significant influence on the yield of buckwheat and its structure than the foliar fertilization.