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依据田间试验提供的参数,对小麦套种玉米的7种不同组合模式,在进行产量性状、经济效益、能效益和水效益比较的基础上,运用主成分分析方法,对综合效益进行了全面系统评价。结果表明,覆膜穴播小麦套种露地撮种玉米和覆膜穴播小麦套种露地等株距玉米两种组合模式,在节约农田用水的前提下实现了麦、玉两作双高产,水分利用效率高,经济效益好,能量转换效益大,综合效益显著,应作为宁南山区灌溉农田乃至西北灌区发展节水、高产、高效种植业和建设吨粮田的主体模式予以大力推广。
Based on the parameters provided by field experiments, seven different combinations of wheat intercropping corn were conducted, and based on the comparison of yield traits, economic benefits, energy benefits and water benefits, a comprehensive systematic evaluation of comprehensive benefits was conducted by using principal component analysis . The results showed that there were two combination modes of mulching and mulching with wheat and mulching and mulching with plastic mulching in the field and maize with mulching and mulching. With the saving of farmland water, wheat and jade were double cropped with high water use efficiency and economy Good efficiency, great energy conversion benefits and significant comprehensive benefits, it should be vigorously promoted as the main mode for developing water-saving, high-yield and high-efficiency planting and the construction of grain-growing land in irrigated and even northwestern irrigation areas in the mountainous areas of southern Ningxia.