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阴山北部丘陵区土壤肥力较低,合理的作物布局及茬口结构的调配,对增强土壤的供肥力和持续提高作物的产量有着重要意义,通过三年的试验研究,明确了该区主要作物茬口土壤有效养分的变化情况,为作物合理布局和轮作提供了科学依据。
The soil fertility in the northern hilly area of Yinshan Mountain is low. The rational crop layout and the deployment of stubble structure are of great significance to enhancing soil fertility and increasing crop yield continuously. After three years of experimental study, it is clear that the main crop stubble soil The changes of effective nutrients provide a scientific basis for the rational layout and rotation of crops.