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在甘肃省酒泉市肃州区海拔高度1 550 m、1 600 m、1 650 m、1 700 m的制种玉米基地上,采用田间试验方法,研究了不同海拔高度对土壤有机质及速效养分和东方红1号玉米产量间的关系。结果表明:随着海拔高度的升高,土壤有机质、速效养分和玉米产量在降低;经线性回归分析,海拔高度与土壤有机质、速效养分和东方红1号玉米产量之间呈显著的负相关关系;随着海拔高度升高,玉米产值在降低;不同海拔高度利润变化顺序为:1 550 m>1 600 m>1 650 m>1 700 m。
A field experiment was conducted on maize planting bases with altitudes of 1 550 m, 1 600 m, 1 650 m and 1 700 m above sea level in Suzhou District, Jiuquan City, Gansu Province. The effects of different altitudes on soil organic matter and available nutrients, Relationship between maize yield of red No.1. The results showed that soil organic matter, available nutrient and yield of maize decreased as the altitude increased. By linear regression analysis, there was a significant negative correlation between altitude and soil organic matter, available nutrients and yield of Dongfanghong 1 ; With the elevation above sea level, the output value of corn decreased; the order of the profits at different altitudes was: 1 550 m> 1 600 m> 1 650 m> 1 700 m.