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一、为什么要追“花铃肥”?棉花花铃期又要长株,又要增蕾,又要开花、结铃,养分四处分散,是棉花一生中营养生长和生殖生长矛盾最尖锐的阶段,是需肥的最高峰,吸收的氮肥数量约占全生育期的百分之六十以上。根据我县高沟公社多年的经验,每亩追施化肥一元钱,可收回皮棉产值十到十五元,这是一项成本小,见效快,收益大的好方法。
First, why catch up with the “flower bell fertilizer”? Cotton boll period and long-term, but also to increase the bud, but also flowering, ringing bell, scattered around nutrients, cotton is the life cycle of vegetative and reproductive growth of the most acute conflict Stage, is the peak need fertilizer, absorption of nitrogen fertilizer accounts for about 60% of the whole growth period. According to my county Gaogou commune for many years of experience, topdressing a dollar of fertilizer per acre, can recover the output value of lint ten to fifteen yuan, which is a small cost, quick, big benefits a good way.