【摘要】 通过开展早藕"3414"肥料效应试验,初步研究了氮、磷、钾不同配比对莲藕生长、经济性状及产量的影响;同时建立氮、磷、钾肥施肥量与产量的回归方程,探索当地早藕的最佳施肥量。结果表明,氮、磷、钾配施能有效增加莲藕叶面积,提高莲藕产量;综合考虑试验土壤的特殊性,提出早藕推荐合理的养分施肥量为纯氮200～240kg/hm2、五氧化二磷50～60kg/hm2、氧化钾100～150kg/hm2。更多还原

【Abstract】 Based on the "3414" fertilizer effect experiment in Xiantao city,the effects of N,P and K fertilizer on early lotus were studied;the regression equation of production and amount of fertilizer were established,the optimal fertilization amount was evaluated.The results showed that balanced fertilization effectively increased lotus leaf area,the yield of lotus;According to fertilizer effect and experimental soil properties,the optimal yield would be reached when N,P2O5 and K2O application rate was 200～240 kg/hm2,50～60 kg/hm2 and 100～150 kg/hm2,respectively.更多还原