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轮作倒茬是我国劳动人民传统的增产经验,许多农业先进的国家也很重视轮作制。轮作可以改变土壤的理化性质,改善士壤结构,调节供应作物所需的氮磷钾和其他矿物营养,以充分发挥作物的增产潜力。由于合理安排作物结构,并实行清种和建立轮作制度,还有利于病虫害的防治,便于机械作业。实践证明,实行合理轮作,是用地养地结合,保证持续增产的一项重要措施。
The rotation of crops is the traditional stimulation experience of working people in our country. Many advanced agriculture-oriented countries also attach great importance to the rotation system. Crop rotation can change the physical and chemical properties of soils, improve the soil structure, regulate the nutrients needed to supply crops such as nitrogen, phosphorus and potassium and other minerals to maximize the yield potential of crops. Due to the rational arrangement of crop structure and the implementation of seed clearing and crop rotation system, it is also conducive to the prevention and control of pests and diseases and is convenient for mechanical operations. Practice has proved that the implementation of a reasonable rotation is a combination of land and land, ensuring continued production increase is an important measure.