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二十九团场六连,七九年在棉花盛花期进行了根外追肥试验,增产效果明显,平均每亩增产皮棉二十一斤。 这个连在去年七月中下旬对本连三斗七农一个条田进行对比试验,全条田其中一百九十亩进行了根外(叶面)追肥。每亩用三料磷二公斤,清水浸泡后,再加入十公斤水,配成水液进行喷雾。到八月四日调查,施肥区平均结铃9.8个,而未施肥区平均结铃只有7.8个,每株多结两个铃。通过测定:施肥区平均铃重2.709克,未施肥区铃重2.357克,平均每个铃增重0.352克。由此可见,长绒棉在生长的高峰期与开花的盛期,进行根外追肥,补给足够的
Twenty-nine regiments Liu Lian, in 1979 in full flowering cotton carried out a fertilizer test, the effect is obvious, an average of 21 kg of cotton per acre yield increase. Even in mid-to-late July last year, the company conducted a comparative test on a field of seven farms and seven farms in a row. Of the 190 fields in the field, the top-dressing (foliar) dressing was carried out. Three acres of phosphorus per kilogram with two kilograms of water soaked, then add ten kilograms of water, dubbed water spray. On August 4, the average number of bolls in the fertilization area was 9.8, while that in the non-fertilizer area was only 7.8, with two bolls per plant. The results showed that the average boll weight in fertilization area was 2.709g, the boll weight in non-fertilization area was 2.357g, and the average weight gain per bell was 0.352g. Thus, long-staple cotton in the peak growth and flowering period, the root top-dressing, replenishment sufficient