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上海郊区现行的麦(油、肥)-稻-稻、麦-稻、麦-棉种植制和我们根据上海大城市郊区的特点而设计的粮饲结合种植制,从生态效益(能流效率和物流效率)、社会效益、经济效益及土壤性质变化等几个方面的综合研究评价结果看,粮饲结合种植制和麦-稻-稻三熟制比麦-稻、麦-棉及其他种植制度有着明显的优越性。因此,上海郊区应该在坚持以水稻和麦类为主体作物布局的基础上,慎重调整麦-稻-稻和麦-稻之间的比例,逐步压缩棉花的种植面积,适当发展药材、香料等经济作物,大力推广粮饲结合种植制,促进多种畜牧业的发展,建立多元多层次的复合农业结构,实现农业生态系统的良性循环。
In the suburbs of Shanghai, the current crop of wheat (oil and fat) - rice - rice, wheat - rice, wheat - cotton planting system and our grain and animal husbandry system designed according to the characteristics of the suburbs of the big cities of Shanghai, Logistics efficiency), social benefits, economic benefits and changes in soil properties and other aspects of the comprehensive evaluation of the evaluation results, combined grain and sowing and wheat - rice - rice three wheat - wheat, wheat - cotton and other planting systems Has obvious advantages. Therefore, on the basis of persisting in the layout of rice and wheat-based crops, Shanghai’s suburbs should carefully adjust the ratio of wheat-rice-rice and wheat-rice and gradually reduce the area planted with cotton and properly develop the economy such as herbs and spices Crops, vigorously promote the combination of grain and grafting system, promote the development of a variety of animal husbandry, the establishment of a multi-level multi-level composite agricultural structure, to achieve a virtuous circle of agro-ecosystems.