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以湘杂棉8号为试材,采用一基多喷、一基一追及当地常规施肥3种不同的施肥方式,比较司尔特棉花专用配方缓控释复合肥对不同收花期棉铃性状拉产量构成的影响。结果表明,各处理棉铃性状以一基一追处理最好,其次为一基多喷处理;不同施肥处理产量以一基一追处理的籽棉总产量最高,达3619.9 kg/hm2,籽棉产量比常规施肥高568.6 kg/hm2,增幅为15.71%,差异极显著。一基一追处理,即基施1 500 kg/hm2专用缓控释肥,盛花期追施尿素117 kg/hm2+氯化钾90 kg/hm2+过磷酸钙192 kg/hm2,可解决棉花生长关键时期(花铃期)因天气干旱或雨涝难以追肥等问题,减少施肥次数,在节省施肥用工的同时达到增产增效的目的。
Taking Xiangzamian 8 as test material, three different fertilization modes, one base multi-spray, one base-one catch and local conventional fertilization, were used to compare the yield and yield of cotton boll traits The composition of the impact. The results showed that the traits of boll bolls were the best in all treatments, followed by the one-pollination treatment. The highest total yield of seed cotton was 3619.9 kg / hm2, and the yield of seed cotton was higher than that of conventional Fertilizer high 568.6 kg / hm2, an increase of 15.71%, the difference was significant. A basic catch-up treatment, that is, the basic facilities 1 500 kg / hm2 special controlled release fertilizer, flowering topdressing urea 117 kg / hm2 + potassium chloride 90 kg / hm2 + superphosphate 192 kg / hm2, can solve the critical period of cotton growth (Flowering period) Difficult to topdress due to drought or floods and other issues, reducing the number of fertilizers, fertilizers to save labor while achieving the purpose of increasing production and efficiency.