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硼是棉花生长发育所必须的微量元素肥料。在一般缺硼的情况下,棉花叶柄常出现环带;严重缺硼时,棉苗矮化,不现蕾。据调查,我县不少棉区棉花在现蕾时叶柄出现环带,有的公社出现成片的蕾而不花缺硼症,棉苗只现蕾不开花、不结桃,群众称为“公棉花”,又叫“冬瓜棉”,过去我们误认为是施肥不当引起的疯长现象,采用深中耕切根,控制施用氮肥和扯破主杆大叶等防疯长措施,但收效甚微,棉花严重减产。
Boron is a trace element fertilizer necessary for the growth and development of cotton. In the case of the general lack of boron, cotton petiole often appear ring; serious boron deficiency, cotton seed dwarf, no bud. According to the survey, many counties in our county cotton bud in the emergence of annulus when the ring zone, and some communes appear into pieces of buds without blight boron deficiency, cotton buds only bud not flowering, not peach, the masses called “ Male cotton ”, also known as“ winter melon cotton ”, in the past we mistakenly believe that the phenomenon of soaring due to improper fertilization, the use of deep-cut farming and cutting, control of nitrogen fertilizer and pull the main bar big leaves and other anti-mad long measures, but with little effect, cotton Serious cuts.