[目的]探寻苏打盐碱地水田土壤最佳施肥方案.[方法]采用正交设计进行试验,通过计算机模拟寻优.[结果]建立水田土壤施肥量的数学模型,并通过主效应与产量关系的分析,得到苏打盐碱土水田土壤最佳产量施肥量为:纯N 175 kg/hm2,P2O5 137/hm2,K2O 50 kg/hm2,ZnSO4 32 kg/hm2.分别以尿素、磷酸二铵、硫酸钾和硫酸锌计算,折算肥料用量为813 kg/hm2.[结论]该研究为苏打盐碱地科学施肥提供技术支持.%[Objective] The research aimed to explore best fertilization programs in the saline-alkali soil. [Method] The orthogonal design was carried out,and the fertilization program was optimized by computer simulation optimization. [Result] The mathematical model of paddy soil fertilizer was established. The relation between lord effect and the yield was analyzed. Gain optimum fertilizing amount of the best yield in the saline-alkali soil was as follows: pure N 175 kg/hm2, P2O5 137 / hm2, K2O 50 kg/hm2, ZnSO4 32 kg/hm2. Calculated by urea, diammo-nium phosphate, potassium sulfate and zinc sulfate, the amount of fertilizer was 813 kg/hm . [Conclusion]The study provided technical support for scientific fertilizer in the saline-alkali soil.
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