Acceptable planting periods and fertilizing methods of sesame (Sesamum L.) in the western province of Zarafshan oasis, Uzbekistan

Abstract

In the scientific article, in the conditions of the typical gray soils of the Samarkand province, located in the western province of the Zarafshan oasis, when sesame (Sesamum L.) is planted in the optimal period of May 5-10, and when mineral fertilizers are used in the maintenance at the rate of NPK 120:90:60 kg/ha, the fertility is 96.1-97.1 %, the number of seedlings at the end of the period of operation is 211,100/ha and the average grain yield is 15.6-12.5 tons/ha. Sowing sesame in this period (05-10.05) is 4.1-3.9 tons/ha compared to the early period (April 25-30) and 1.4-1.6 tons/ha compared to the late period (15-20.05), the use of mineral fertilizers at the rate of NPK 120:90:60 kg/ha compared to NPK 150:105:75 kg/ha is 0.3-0.8 tons/ha. It is stated in the article that it provides additional grain yield in the amount of 7 tons/ha.