不同栽培方式对水稻产量及经济效益的影响(英文)

目的]探明洞庭湖区不同栽培方式对水稻产量和经济效益的影响。方法]采用田间大区试验,研究人工直播、人工抛秧和机械插秧三种栽培方式对水稻产量和经济效益的影响。结果]机械插秧处理的水稻产量最高,较人工抛秧处理和人工直播处理的稻谷产量分别增加7.84%和24.19%。机械插秧和人工抛秧处理的单位面积有效穗数小于人工直播处理,每穗粒数、千粒重和结实率均大于人工直播处理。机械插秧处理的水稻净收益最高,达11779.16元/hm2,分别较人工抛秧和人工直播处理增加1697.72和3631.84元/hm2。结论]机械插秧可以促进洞庭湖区水稻的生产效率,并能增加水稻产量和经济收益。

Effects of Different Planting Patterns on Rice Yield and Economic Benefit

Objective] This study aimed to investigate the effects of cultivation methods on rice yield and economic benefits in the Dongting Lake area. Method] A field plot experiment was conducted by adopting three different planting patterns of artificial sowing, artificial throwing and mechanical transplanting. Result] Rice yield of mechanical transplanting was 7.84% and 24.19% higher respectively than that of artificial sowing and artificial throwing. The effective panicles per unit area of mechanical transplanting and artificial throwing were less than that of artificial sowing. On the contrary, grains per spike, 1 000-grain weight and seed setting rate of mechanical transplanting and artificial throwing were less than those of artificial sowing. Mechanical transplanting of rice brought the highest net income 11 779.16 yuan/hm2, which was 1 697.72 and 3 631.84 yuan/hm2 higher than that of artificial throwing and artificial sowing. Conclusion] Mechanical transplanting could promote rice productivity in Dongting Lake area, and could increase rice yields and economic returns.