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典型调查与统计分析表明,鲁西北地区主要作物种植方式适宜种植的生态区域顺序为高坡地>河滩高地>平、窪坡地>背河槽状窪地,在前者区域上种植作物,可比在后者区域上获得高而稳定的产量和较高的经济效益。各种作物中,小麦、棉花高产、稳产,对地形类型和土质适应性强,应扩大种植面积,突出其优势。小麦——玉米两熟方式产量高而不稳,但对土质的适应性较广.小麦——谷子产量虽略低,但稳定性较强,在土质较重的土壤上纯收入高于土质较轻的土壤。小麦——大豆在河滩高地的产量高,纯收入也高,对土质的适应性较广。
The typical investigation and statistical analysis showed that the order of ecological regions suitable for planting main cropping systems in northwestern Shandong was highland> floodplain> flat and sloping land> dorsal fluvial depression, and crop was planted in the former area, comparable to the latter Get high and stable output and high economic benefits. Among various crops, wheat and cotton yield are high and stable, adaptable to the topography and soil quality, should be expanded planting area, highlighting its advantages. The yield of wheat-corn was high and unstable, but its adaptability to soil was wide.While the yield of wheat-millet was slightly lower, its stability was stronger and its net income was higher in soil with heavier soil than that in soil Light soil. Wheat - soybeans in floodplain high yield, net income is also high, a wider adaptability to the soil.