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为探索棉花生产管理过程当中最科学的施肥方法,按照农业部“3414”完全试验方案进行了疏勒县棉花氮磷钾平衡施肥效果试验。结果表明,在供试土壤条件下,最大施肥量为纯N 423.9 kg/hm~2、P_2O_5348.3 kg/hm~2、K_2O 23.1 kg/hm~2,最大籽棉产量为5 967.6 kg/hm~2;最佳施肥量为纯N 408.9 kg/hm~2、P_2O_5326.4 kg/hm~2、K_2O 38.7 kg/hm~2,最佳籽棉产量为5 963.85 kg/hm~2。
In order to explore the most scientific method of fertilizer application in the process of cotton production management, cotton NPK balanced fertilization experiment was conducted according to the “3414” complete test program of Ministry of Agriculture. The results showed that the maximum fertilization amount was N 423.9 kg / hm ~ 2, P_2O_ 5348.3 kg / hm ~ 2, K_2O 23.1 kg / hm ~ 2 and the maximum seed yield was 5967.6 kg / hm ~ 2. The best fertilization amount was N 408.9 kg / hm ~ 2, P_2O_5326.4 kg / hm ~ 2, K_2O 38.7 kg / hm ~ 2 and the best seed cotton yield was 5 963.85 kg / hm ~ 2.