Хозяйственно-биологическая оценка сортов фасоли

Abstract

The article presents the results of agroecological studies of not only the collection of common beans under the conditions of the subtype of light chestnut soils of the Astrakhan region, but also worked out the method of sowing various varieties, the seeding rate, inoculation of seeds with rhizotorphin during drip irrigation. Light chestnut soils, a test culture of beans, and the drug rhizotorfin were chosen as objects of study. The study showed that when cultivating common bean under irrigation conditions in the Astrakhan region on a subtype of light chestnut soils, it is advisable to carry out pre-sowing inoculation of seeds with rhizotorphin, which ensures a stable yield of common bean seeds under drip irrigation, and also contributes to the accumulation of biological nitrogen and maintaining a positive balance of organic matter in the soil. During variety testing, the selection of promising varieties and samples was carried out according to their responsiveness to the introduced mineral nitrogen, as well as according to the reaction to inoculation with a rhizotorphin strain. The optimal soil moisture in the study of bean collections with drip irrigation was maintained during the period of full shoots-budding - 65 ... 70% HB, budding - flowering - 70 ... As a result of the study, a positive effect of seed treatment with rhizotorphin was established, so the vegetation period for varieties was reduced by 1 ... productivity. A positive trend was also noted not only when comparing varieties of the second background with varieties of the first, but also inoculated varieties with the standard - Oka, which also confirms the positive value of presowing seed treatment with rhizotorfin. Thus, based on the data obtained, under conditions of drip irrigation on light chestnut soils, it is economically feasible to sow in a wide-row method (0.70 m) with a seeding rate of 500,000 germinating seeds per hectare and carry out pre-sowing seed inoculation with rhizotorphin.