Effects of planting scheme and additional pollination on oil content of sunflower seeds planted at different dates

Abstract

The article provides data on the amount of oil in the seeds of sunflower seeds 20-80 and SUR varieties when planted in planting schemes of 70x30x1; 70x25x1; 70x30x1; 70x35x1; 70x35x1; 70x40x1 CM. As the sowing period was delayed from July 1 to July 10 and from July 10 to July 20, depending on the variety, there was a decrease in the amount of oil in the seed as well as the amount of oil obtained from one hectare. In all studied planting periods, from 70x20x1 CM to 70x40x1 CM of nutrition there was a good growing development of plants due to the expansion of the area, but at the expense of the area, a very high yield was not obtained on the account of hectares due to the extremely low number of bushes. Thick planting scheme 70x20-1 and 70x25-1 cm when grown, the stem of the plants is nimble and the row is 70 cm between the baskets due to their relatively small size., the plant is 30 cm between.from 40 cm.the oil content in the seeds was lower compared to options that increased to.