半干旱区玉米麻地膜覆盖栽培综合效益分析

Research on the Integrated Profit for Cultivation of Maize with Hemp-plastic Mulching in Semi-arid Area

在半干旱地区玉米采用麻地膜覆盖栽培与普通地膜覆盖栽培、常规栽培进行了田间应用效果试验,研究了麻地膜覆盖栽培对土壤理化性状、土壤温度、土壤持水量、玉米生长及产量等的影响。结果表明,麻地膜覆盖栽培比常规栽培生育进程加快,株高和叶面积系数增加,根干重减少,水分利用效率增加,产量增加8.42%。麻地膜覆盖栽培经济效益低于常规栽培。

The field experiment on hemp-plastic mulching cultivation, normal plastic mulching cultivation and usual cultivation of maize in semi-arid area was carried out. Through the experiment, effect of hemp-plastic mulching cultivation to soil physical and chemical properties, soil humidity, soil water content, growth and yield of maize was studied. The results showed that cultivating maize with hemp-plastic mulching could hasten the growth stage, increase maize plant height and leaf area index, decrease the dry weight of maize root, increase water utilization efficiency and increase maize yield by 8.42% compared with usual cultivation. However, the economic profit for hemp-plastic mulching maize was lower than that of usual cultivation.