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在半干旱区旱地玉米中低产田,进行了7个栽培模式研究,结果发现投入资金与产量产值呈显著正相关,r=0.815℃(p<0.05,n=5),与经济效益相关不显著,r=0.566(p>0.05,n=5).说明科学地增加投入的重要性。营养体干重积累与子粒产量呈极显著正相关,r=0.880(p<0.01,n=5),与经济系数相关不显著,r=0.71)(p>0.05,n=5),说明科学施肥的重要性。试验指出,模式2投入产出比是1比6.19,亩产455.5公斤,比对照增产201公斤.水分利用率为1.19公斤/毫米,比对照提高82.5％,是本研究中最优栽培模式。
In a semi-arid area of dry and medium-low yield field of maize, seven cultivation patterns were studied and found that there was a significant positive correlation between investment and output value (r = 0.815 ℃, p <0.05, n = 5) , r = 0.566 (p> 0.05, n = 5), indicating the importance of scientifically increasing input. There was a significant and significant positive correlation between dry weight accumulation and grain yield (r = 0.880 (p <0.01, n = 5), with no significant correlation with economic coefficient (r = 0.71) The importance of fertilization. The results showed that the input-output ratio of mode 2 was 1: 6.19, 455.5 kg per mu, 201 kg more than the control, and the water use efficiency was 1.19 kg / mm, which was 82.5% higher than that of the control.