施肥对河西绿洲灌区小麦玉米带田产量及效益的影响

对河西绿洲灌区土壤缺乏的主要营养元素在小麦玉米带田上不同方式配合施用的试验结果表明,带田合计产量和纯收益以氮、磷、钾、锰配施最高,分别为18 016.5 kg/hm2和17 730.0元/hm2,较对照分别提高82.8%和11 005.5元/hm2;其次是氮、磷、钾、锌配施,分别为15 628.5 kg/hm2和16 017.0元/hm2,较对照分别提高58.6%和6 940.5元/hm2。在施氮、磷的基础上,增施钾和锌、锰可提高玉米的穗粒数和千粒重,产量显著提高,肥效从大到小依次为为氮、锰、锌、钾。

Impact of Fertilization on Yield and Efficiency of Wheat and Corn Strip Intercropping in Hexi Oasis Irrigation

The different ways with the application fertilization of lacking the main nutrients in the soil of wheat and corn strip intercropping in Hexi oasis irrigation. The results showed that the highest yield and efficiency of combined fertilizer application nitrogen, phosphorus potassium and manganese which the average yield was 18 016.5 kg/hm^2 and 17 730.0 yuan/hm^2, 82.8% and 11 005.5 yuan/hm^2 higher than that of the check; and next came the yield and efficiency of combined fertilizer application nitrogen, phosphorus and potassium which the average yield was 15 628.5 kg/hm^2 and 16 017.0 yuan/hm^2, 58.6% and 6 940.5 yuan/hm^2 higher than that of the check. Based on increased potassium and zinc, to apply fertilization of potassium, zinc and manganese, it canincrease the strain of maize grains and thousand grain weight, Seed yield increased significantly, the fertilizer efficiency, from big to small, was fertilizer of nitrogen, manganese, zinc, potassium.