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[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。
[Objective] The research aimed to find out the effects of different cultivation methods of Dongting Lake on the yield and economic benefits of rice. [Method] The experiment of field area was used to study the effects of three kinds of cultivation methods of artificial direct sowing, artificial throwing and mechanical planting on the yield and economic benefits of rice. [Result] The output of rice by mechanical transplanting was the highest, which increased by 7.84% and 24.19% respectively compared with the artificial throwing and artificial direct seeding. Mechanical transplanting and artificial throwing seedlings per panicle is less than the effective area of artificial direct seeding, grain number per spike, 1000-grain weight and seed setting rate are greater than artificial direct seeding. The net benefit of mechanical transplanting rice was the highest, reaching 11779.16 yuan / hm2, which was 1697.72 yuan and 3631.84 yuan / hm2 higher than the artificial throwing and artificial direct seeding respectively. [Conclusion] The mechanical transplanting can promote the production efficiency of rice in Dongting Lake and increase the yield and economic benefit of rice.