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根据温地稻田的自然资源和经济资源特点,结合作物的生长特性,以稳粮增收为原则,设计了3种新的稻田耕作制,并于1996~1997年在温地稻田试验示范。结果表明:3种新的耕作制在土地生产率、劳动生产率和产品率等方面都比单季稻蓄留再生稻或单季稻高。在3种新的耕作制中,以单季稻—台湾食荚豌豆604—南韩春大萝卜一年三熟制的纯收入、产品商品率最高,分别为5015元和981%;单季稻—南韩春大萝卜一年二熟制次之,分别为3590元和931%。劳动生产率以单季稻—南韩春大萝卜的最高,为150元/d;单季稻—台湾食荚豌豆604—南韩春大萝卜次之,为121元/d。
According to the characteristics of natural and economic resources of paddy field in paddy field and combining with the growth characteristics of crops, three new paddy-tillage systems were designed based on the principle of increasing the stable grain yield. Experiments were conducted in paddy field of warm-land in 1996-1997. The results showed that the three new tillage systems were higher in land productivity, labor productivity and product rate than single cropping rice or ratoon rice. Among the three new cropping systems, the highest single-crop yields were obtained from single-cropping rice-Taiwan Podded Peas 604-South Korea Spring Radish three times a year, respectively, at a rate of 5015 yuan and 98.1% respectively. Single-crop rice - South Korea Spring Big turnip cooked twice a year, respectively, 3590 yuan and 93 1%. Labor productivity in single-season rice - the highest spring radish in South Korea was 150 yuan / d; single-season rice - Taiwan 480 million in spring peas radish radish, followed by 121 yuan / d.