四川奉节县城郊幸福乡菜农杨合中,采用地膜覆盖、早熟良种、培育壮苗、激素使用和防治病虫等先进农业科学技术,种菜季季增产增收,番茄连年高产创新。1988年在历史罕见的大旱之年,又采用“一增三改”技术组装配套对菜地深度开发,1.15亩番茄获得平均亩产1.5万公斤产值5400元的创纪录好收成,比去年同土块亩产高出2倍,比1988年常规栽培亩产高出3倍,为1989年大面积开发商品菜,提高番茄产量探索了 Sichuan Fengjie County rural suburbs happiness rural agriculture Yanghezhong, the use of plastic mulching, precocious breeding, nurturing seedlings, hormone use and the prevention and control of pests and other advanced agricultural science and technology, planting and seasons increased production and income, high yield and innovation in tomato year after year. In 1988, in the rare drought year of history, the “one increase, three changes” technical support package was used to develop the vegetable fields in depth. The yield of 1.15 mu of tomatoes was 54,000 yuan, an average yield of 15,000 kg per mu. Soil mu produce 2 times higher than conventional cultivation of 1988 mu 3 times higher, for large-scale development of commercial vegetables in 1989 to explore the yield increase of tomatoes