Photosynthetic activity of white lupine plants depending on growing technology and hydrothermal conditions
Purpose. Intensification of photosynthetic activity of white lupine plants in order to increase the grain yield by applying a fungicide, growth stimulator of plants of biological origin and foliar fertilization of crops with micronutrients in the critical periods of the growing season. Methods. Field (to study the interaction of the object of study with biotic and abiotic factors); morphophysiological (for biological control over the development of productivity elements by stages of organogenesis); weight (to establish the parameters of the crop structure elements and determine the yield of grain); statistical (statistical processing of the research results). Results. The results of the research on the influence of biological preparations, in particular fungicide and plant growth stimulator, as well as foliar feeding with microfertilizers in chelated form in different stages of organogenesis, on leaf surface formation and dry matter accumulation by the Chabansky variety white lupine plants are presented. Correlations have been established between the level of those indicators and the average daily air temperatures and the amount of precipitation during the growing season. Conclusions. To maximize the genetic potential of the Chaban lupine variety, the technology of its cultivation should include sowing seeds treated with bioinoculant in combination with a bioprotector, application of a biostimulator of plant growth and development and foliar fertilization of plants with microfertilizer at the second stage of organogenesis. Formation of the leaf surface of white lupine plants and their accumulation of dry matter are significantly influenced by weather conditions during April-July.
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