硼,是棉花需要的一种微量元素,缺硼的土壤会引起棉花蕾而不花,严重减产。为保证棉花丰收,1982年我们对2500亩棉花进行喷硼试验,增产效果显著。永录大队用0.2％的浓度分别在初花期(7月15—20日),花期(7月30日),花铃期(8月15日)各喷一次,用药量分别为50—80斤、80—100斤、100—120斤,结果如表。 Boron, which is a trace element required for cotton, can cause cotton buds without flower and severely reduce production due to boron deficiency. In order to ensure a good harvest of cotton, we sprayed 2,500 acres of cotton in 1982 to test the yield increase significantly. Yong Brigade at a concentration of 0.2%, respectively, in the first flowering (July 15-20), flowering (July 30), flowering period (August 15) spray once, the dosage was 50-80 kg , 80-100 pounds, 100-120 pounds, the results as table.