Rice Research Institute Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory of New Technology for Rice Breeding Guangzhou 510640 P.R.China;
Rice Research Institute Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory of New Technology for Rice Breeding Guangzhou 510640 P.R.China;
Guiping Agricultural Technology Extension Station Guiping 537200 P.R.China;
Rice Research Institute Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory of New Technology for Rice Breeding Guangzhou 510640 P.R.China;
Rice Research Institute Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory of New Technology for Rice Breeding Guangzhou 510640 P.R.China;
Guiping Agricultural Technology Extension Station Guiping 537200 P.R.China;
Rice Research Institute Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory of New Technology for Rice Breeding Guangzhou 510640 P.R.China;
Rice Research Institute Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory of New Technology for Rice Breeding Guangzhou 510640 P.R.China;
Rice Research Institute Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory of New Technology for Rice Breeding Guangzhou 510640 P.R.China;
Rice Research Institute Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory of New Technology for Rice Breeding Guangzhou 510640 P.R.China;
Rice Research Institute Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory of New Technology for Rice Breeding Guangzhou 510640 P.R.China;
Rice Research Institute Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory of New Technology for Rice Breeding Guangzhou 510640 P.R.China;
grain yield; resource use efficiencies; indica rice; planting density; nitrogen application strategy;