长期不同施肥结构对作物产量的影响

通过长期定位试验研究不同施肥结构在黄泥田土壤上对作物产量的影响,筛选出适合当地农业生产的施肥结构。在云南省通海县龚杨村实施11a的定位施肥田间小区试验,研究①不施肥（CK）、②氮磷钾化肥配施（NPK）、③农家肥氮化肥配施（OM＋N）、④农家肥氮磷化肥配施（OM＋NP）、⑤农家肥氮钾化肥配施（OM＋NK）、⑥农家肥氮磷钾化肥配施（OM＋NPK）等6种施肥结构对水稻、蚕豆高产、稳产、肥料贡献率和持续性的影响。结果显示：水稻平均产量OM＋NP〉OM＋NPK〉NPK〉OM＋NK〉OM＋N〉CK,蚕豆平均产量NPK〉OM＋NPK〉OM＋NP〉OM＋NK〉OM＋N〉CK;不同施肥结构肥料对水稻产量的贡献率OM＋NP〉OM＋NPK〉NPK〉OM＋NK〉OM＋N依次为32.1%30.2%27.8%27.6%27%,不同施肥结构肥料对蚕豆产量的贡献率NPK〉OM＋NPK〉OM＋NP〉OM＋NK〉OM＋N依次为18.4%16.3%14.3%13.6%13.3%。在水稻上以农家肥与氮磷化肥配施和农家肥与氮磷钾肥配施2种施肥结构对水稻产量的贡献率较大,但两者之间差异不大;次之的依次是氮磷钾肥配施,农家肥与氮钾肥配施和农家肥氮肥配施3种施肥结构肥料,但这3种施肥结构间肥料贡献率差异不大。在蚕豆上肥料贡献率较好的3种施肥结构依次为氮磷钾化肥配施,农家肥与氮磷钾肥配施和农家肥与氮磷化肥配施。

Eeffect on Different Fertilizer Structure of the Crops Yield

through long-term experiment research different fertilizer structure in clay soils field,the effect on crops yield were suitable for local agricultural production of fertilization structure.In yunnan province TongHaiXian Gong village.porcelain implementation 11 years of positioning fertilization field plot experiment,Research(1) no fertilizer(CK),(2) NPK fertilizers matchs shi(NPK),(3) livestock nitrogen with shi(OM + N),(4) nitrogen and phosphorus fertilizer with livestock joash(OM +NP),(5) OM + N and k fe...