供肥模式对永久性菜地豇豆产量和品质的影响

 采用大田小区试验，设不施肥，PK，NK，NP，NPK，鸽粪，NPK+鸽粪，NPK+中微肥等处理，来探讨提高豇豆品质及产量的营养供应模式。结果表明：单独施用鸽粪的纯有机营养模式在两种类型土壤上都能够有效降低豇豆硝酸盐含量，且有较高的豇豆V_C累积水平，可有效改善豇豆营养品质。与NPK+鸽粪处理的有机无机结合营养模式类似，采用NPK+中微肥的纯化学态养分平衡供肥模式，在两种类型土壤上也有提高豇豆V_C含量的明显效果，因而也改善了豇豆营养品质，且在砂质土上增产效应突出，对豇豆优质稳产高产亦有重要作用。

Effects of Manure Patterns on Vigna sinensis(L) Savi's Yield and Quality in Permanent Vegetable Field

Field experiment was carried out on the granite fine sand and the granite silty loam soils,The treatments such as no manure, PK, NP, NPK, pigeon feces, NPK pigeon feces and NPK mid-micro elements were studied for the effects of fertilization patterns on Vigna sinensis(L) Savi's yield and qualities. The results showed that single pigeon feces, decreased significantly the nitrate content and increased the vitamin C level in Vigna sinensis(L) Savi both in granite fine sand soil and granite silty loam soil, which indicated that pure organic nutrition can improve the nutritional qualities of Vigna sinensis(L) Savi's product. Moreover, vitamin C content in Vigna sinensis(L) Savi] the balanced fertilization patterns of NPK pigeon feces and NPK mid-micro elements increased in these two tested soils, and Vigna sinensis(L) Savi's yield in granite fine sand soil which indicated that the balanced nutrition pattern of pure chemical fertilizers has the same effect with mixed nutrition pattern of organic manure and chemical fertilizer in term of yield and quality of Vigna sinensis(L) Savi.