四川盆地丘陵区,面积近10.6亿平方公里,一亿亩耕地中,约73％分布在丘陵区,丘陵区耕地中一半以上是旱地。要充分发挥旱地生产优势,必须在耕作制度上找到一条突破性的道路,以持续地提高土地生产率。这个突破口就是我所要推荐的,多熟多样带状间套复种轮作的耕作制度模式。 In the hilly area of ​​Sichuan Basin, with an area of ​​nearly 1.06 billion square kilometers, about 73% of the 100 million mu of arable land is distributed in the hilly areas, and more than half of the arable land in the hilly areas is dry land. In order to give full play to the advantages of dry land production, we must find a breakthrough path in the farming system so as to continuously increase land productivity. This breakthrough is the mode of farming system that I would like to recommend.