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为优化马铃薯氮、磷、钾肥配合施用,提高产量和商品薯率,2010年在施肥总量确定的情况下,采用“3414”二次回归最优设计方案,研究氮、磷、钾肥不同比例配合施用对马铃薯经济性状及产量的影响试验。结果表明,氮、磷、钾肥配施对马铃薯经济性状和产量影响较是显著,优化氮、磷、钾肥配施,能有效改变经济性状和提高产量,采用氮150 kg/hm2、磷75 kg/hm2、钾180 kg/hm2配合施用,马铃薯综合经济性状和商品性最好,产量最高。
In order to optimize the application of nitrogen, phosphorus and potash fertilizers to increase the yield and commercial potato yield, the optimum design of “3414 ” quadratic regression was used to study the effects of nitrogen, phosphorus and potassium fertilizers on total fertilization in 2010 Effects of Proportional Coordination Application on Potato Economic Traits and Yield. The results showed that the combination of nitrogen, phosphorus and potassium fertilizers had significant effects on the economic traits and yields of potatoes. Optimizing the combination of nitrogen, phosphorus and potassium fertilizers, which could effectively change the economic traits and increase the yield, with 150 kg / hm2 of nitrogen and 75 kg / hm2 and potassium 180 kg / hm2, the potato has the best comprehensive economic traits and commercial products with the highest yield.