Growth and development of narrow-leaved lupin and its productivity depending on variants of fertilizer and biological preparations

Abstract

The purpose of the study - to show the impact of variants of the main fertilizer, foliar fertilization with microfertilizer in chelated form in critical periods of development culture, pre-sowing inoculation of seeds with nitrogen-fixing bacteria in combination with bioprotector for linear stem development, generative development of plants and grain yield. Methods. Field; morphophysiological, weight, statistical. Results. The results of research on the effects of biological drugs, in particular, are presented inoculant, fungicide, mineral fertilizers and foliar fertilization in chelated form of Tropicel (0.3 kg / ha) at different stages of organogenesis for generative development plants of narrow-leaved lupine variety Peremozhets on the formation of their height, number of flowers and beans and crop yields. The optimal variant of fertilizer and term is revealed carrying out foliar feeding of plants. It is established that the technology options growing of narrow-leaved lupine, which involved the introduction of N68P48K66, sowing seeds, treated with BTU-r bioinoculant and MikoHelp biofungicide in a wide-ranging manner (with row spacing 45 cm), with a seeding rate of 1.2 million units / ha, conducting foliar feeding plants with microfertilizer in chelated form at the II or IV stages of organogenesis, plants were formed higher by 7.2-11.3 cm, compared with the control (48.4 cm), with larger the number of flowers by 68.8-79.0% and beans preserved before harvest - by 54.0-56.3% by indicators on control, respectively, 20.5 and 8.7 pieces / plant. Conclusions. In the Forest-Steppe right-bank for growing narrow-leaved lupine on gray forest soil for intensification of both vegetative and generative development of plants is mandatory elements of cultivation technology are the application of estimates for the planned harvest norms of mineral fertilizers, pre-sowing treatment and inoculation of seeds with drugs based on active strains of nitrogen-fixing bacteria, foliar feeding of plants microfertilizer in chelated form at II-IV stages of organogenesis for optimal providing nutrients in critical periods of development. These agricultural measures contributed to the optimization of growth, development and yield formation of 2.58-2.61 t / ha at the level of control 1.96 t / ha.