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本文在分析中国南亚热带自然条件和经济特点的基础上,指出这一地带的多熟耕作制的若干主要类型是:(1)以水稻为主的多熟制;(2)稻田旱作物多熟制;(3)农牧渔相结合的复合多熟制;(4)旱地耕作制。另外,还探讨了南亚热带多熟制的资源利用及其综合评价。最后,作者强调指出:在调整农业生产结构和作物布局中,为了兼(?)经济、社会、生态三方面的效益,根据这一地带的自然条件和粮食不足的特点,除了对不宜种稻的农田应合理改种其他作物或挖塘养鱼以外,必须保持良田面积,实行以水稻为主的水旱轮作制。其次,根据当前多熟制的发展,改变“多熟制”的传统观念,应用农业生态系统的原理,去探讨农田多熟耕作制的内部规律。
Based on the analysis of the natural conditions and economic characteristics of China’s southern subtropics, the paper points out that the main types of multi-cropping systems in this region are: (1) rice-based multi-cropping system; (2) Cooked; (3) a combination of farming and animal husbandry and fishery multi-cooked system; (4) dry farming system. In addition, the resource utilization and its comprehensive evaluation of multi-cropping system in South Asia are also discussed. Finally, the author emphasizes that in order to reconcile economic benefits, social benefits and ecological benefits in adjusting agricultural production structure and crop layout, according to the natural conditions of this zone and the characteristics of insufficient food, Farmland should be re-adapted to other crops or dredged ponds. It is necessary to maintain the area of fertile land and implement paddy and water-based rotation system. Secondly, according to the current multi-cropping system, we change the traditional concept of “multi-cropping system” and apply the principle of agroecosystem to discuss the internal rules of multi-cropping system.