Combination Models of “Ton Grain Yielding Field” in Chongqing Area and Tkeir Benefit Analysis

Abstract

Abstract: In the light of the effects and problems of developing winter-cropping paddy fields in Chongqing area andin order to search after the optimum model of reforming such fields,10 combination models of construct-ing"ton grain yielding field" are selected.They are：1.middle season rice-ratooning rice＋r1sh；2.mid-dle-season rice-ratooning rice ＋fish-duckweed；3 middle-season rice-ratooning rice＋fish＋veg-etable wildrice；4.middle-season rice-ratooning rice＋duck＋duck＋fish；5.middle-season rice-ra-tooning rice＋fish＋grape；6.middle-season rice-vegetable-vcgetable, middle-season rice-mush-rooin, 8.middle-season rice-strawberry；9.green manure-tender corn-late rice, and 10.wheat/corn/vegetable-vegetable.Through 3 years application and extension,these models all obtained good economic,social and ecological benefits.

Key words: sorghum, germplasm, salt-alkaline tolerance, seedling stage.

ZhengQinyu, Zhu Zhijun, Hu Shengrong, Yuan Ke, Lei Yan, Li Dengguo, Cheng Shiyu, Wen Yongxue, Liu Guantang. Combination Models of “Ton Grain Yielding Field” in Chongqing Area and Tkeir Benefit Analysis[J]. cje, 1993, (2): 34-36.

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Combination Models of “Ton Grain Yielding Field” in Chongqing Area and Tkeir Benefit Analysis

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