[Objective] The aim was to explore effects of FCMP compound fertilizer on growth, development and yield of early rice. [Method] Based on lower-graded phos- phate resource, effects of FCMP compound fertilizers on yield and growth of early rice in a field were researched. [Result] FCMP compound fertilizers 0, 1 and 2 en- hanced rice yield, increasing by 21.86%, 20.25% and 13.46%, compared with the rice applied with conventional fertilizer; number of productive ears and grain number per ear in unit area were improved by FCMP compound fertilizer, for example, the two factors achieved the highest with FCMP compound fertilizer 1, increasing by 11.70% and 19.63%. Furthermore, FCMP compound fertilizer promoted plant height and tiller number, maintained high photosynthetic efficiency, enhanced lodging-resis- tance and guaranteed stable and high yield. [Conclusion] The research is of theoret- ical and practical significance for further exploration of production techniques and application of FCMP compound fertilizer.
[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.
