四川丘陵旱地麦、玉(玉米)苕(甘薯)套种三熟制(简称旱三熟)。由于充分利用自然资源,趋利避害,高产稳产,因而深受群众欢迎,近年来推广面积已达1500万亩,占丘陵旱地的58%,在旱粮增产上起到了积极作用,现已成为全省旱粮基本耕作制度。旱三熟把麦、玉、苕三大高产作物用间套 Sichuan hilly dry wheat, jade (corn) 苕 (sweet potato) Intercropping system (referred to as dry three cooked). As a result of making full use of natural resources, benefiting from disadvantages and yielding high and stable yields, it has been well received by the masses. In recent years, the area for its promotion has reached 15 million mu, accounting for 58% of the hilly dry land. It has played a positive role in boosting the output of dry grains and has now become The province’s dry farming basic farming system. Dry three cooked wheat, jade, 苕 three high-yielding crop sets