[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 ...[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.展开更多
文摘[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.
