INFLUENCE OF THE COMPLEX COMPOUND OF COBALT ON THE GROWTH, DEVELOPMENT AND YIELD OF COTTON
Abstract
<strong>Annotation: </strong><em>The </em><em>article provides data that soaking seeds before sowing and feeding cotton </em><em>with </em><em>cobalt-31 improves its growth and development, increases yield by 5.6-6.4 c/ha </em><em>. </em><em>Treatment of seeds before sowing and during top dressing in the phase of the beginning of budding with complex compounds of microelements accelerates the growth of the main stem by 25%. Seed treatment in cobalt-31 solutions had a stimulating effect on the intensity of plant growth processes both at the beginning and in subsequent phases of cotton development.</em> <em>According to the results of the appearance of true leaflets, an acceleration in the rate of their formation and an increase in linear dimensions were observed. Under the action of the complex compound, the formation of the first three true leaves is determined by 18-26% and its positive effect is maintained in the subsequent phases of growth and development of cotton, the mass formation of buds occurs 15 days earlier than in the control and leads to early formation of ovaries and opening of bolls. Seed treatment before sowing and top dressing at the beginning of budding contributes to the greatest development of leaf area in cotton ontogenesis. Seed treatment before sowing and fertilizing with cobalt-31 significantly increase the leaf area and contribute to a greater accumulation of cotton biomass.</em> <em>The yield of cotton, depending on the treatment of seeds before sowing and top dressing in the phase of the beginning of budding with some complex compounds of microelements, increases by 10.6-17.6%. A high yield was obtained in the variant where the seeds were soaked before sowing and fed in the phase of the beginning of butanization with the trace element cobalt-31. At the same time, the increase in yield was 3.8-6.3 c/ha. The results of experiments with the pre-sowing lock of cotton seeds established that the positive effect of the impact of microelements on seeds in many cases persists until the end of the growing season, as evidenced by an increase in the yield of raw cotton.</em>