The results of researches are expounded in relation to the study of influence of different terms of sowing and norms of sowing on forming of indexes of the individual productivity of variety of soybean with a different vegetation period in the conditions of north-western Forest-steppe. It is set that the indexes of the individual productivity depend on the features of variety, terms of sowing, norms of sowing, temperature condition and terms of moistening in a period forming of pod and pouring of grain. In middle for years our researches of plant of soybean of variety of КiVin formed on one plant of 29-32 pod, to the variety Omega is Vinnytsya – 28-33 pod, to the variety Monada – 30-35 pod, to the variety of Hutoryanochka – 26-44 pod. It is set that the increase of norm of sowing, at all terms of sowing, predetermines reduction to the amount of pod, on the average, on 2-7 pod, and displacement of terms of sowing in ІІ ten-day period of May – on 2-4 pod. Mass of 1000 seeds was most (124.2-149.2 g) at all investigated variety of soybean at sowing in ІІІ to the ten-day period of April, while at sowing in ІІ she hesitated the ten-day period of May a from 113.9 to 146.6 g depending on a variety and norm of sowing, that on 4.0-14.5 g less than by comparison to sowing in And to the ten-day period of May. Supervisions showed on the indexes of harvesting humidity of seed of soy, that during all period of researches on them the investigated factors had certain influence: variety, terms of sowing and norm of sowing, however, most influential was a factor of weather terms in a time of ripening and collection
soybean, variety, sowingterms, seeding rate, seeds, pod, mass 1000 seeds
Retrieved from No. 2(61), 2017
Pages 60-67