晋西北风沙源区玉米种植模式研究

Study on Maize Planting Mode in the Sandstorm Area of Northwest Shanxi

为探索适合在晋西北风沙源区推广的玉米种植模式,试验研究了不同施肥及覆膜模式对玉米产量、经济效益及水分效应的影响。结果表明,玉米的产量和水分利用效率均呈现出配方施肥处理>传统施肥处理>不施肥处理的趋势,但配方施肥只是单纯地提高了产量,经济效益并不明显;玉米的产量和水分利用效率均呈现出渗水地膜处理>普通地膜处理>不施肥处理的趋势,同时渗水地膜的经济效益也最佳。综合比较,配方施肥渗水地膜覆盖方式产量和水分利用效率均最高,分别为7 584.3 kg/hm^2和2.44 kg/m^3;传统施肥渗水地膜覆盖方式经济效益最高,纯利润达到7 817.2元/hm^2。

To explore the most suitable planting pattern of maize in the sandstorm area of northwest Shanxi, this experiment studiedthe effects of different fertilization modes and filming modes on the yield, economical profit and water use efficiency. The results showedthat yield and WUE presented the tendency of formula fertilization〉conventional fertilization〉no fertilization, but the treatment offormula fertilization only increased the yield, and it didn＇t achieve the optimal economical profit. Yield and WUE presented the tendencyof water permeability plastic film〉conventional film〉no cover, the treatment of water permeability plastic film also obtained the highesteconomical profit. The comprehensive analysis showed that the treatment of combined formula fertilization with water permeability plasticfilm achieved the highest yield and WUE（7 584.3 kg/hm2and 2.44 kg/m3） . The treatment of combined conventional fertilization andwater permeability plastic film achieved the highest profit（7 817.2 yuan/hm2） .