[Nutrient use efficiency and yield-increasing effect of single basal application of rice specific controlled release fertilizer].
A series of pot and field experiments and field demonstrations showed that in comparing with the commonly used specific-fertilizers containing same amounts of nutrients, single basal application of rice-specific controlled release fertilizer could increase the use efficiency of N and P by 12.2% - 22.7% and 7.0% - 35.0%, respectively in pot experiment, and the use efficiency of N by 17.1% in field experiment. In 167 field demonstrations successively conducted for 3 years in various rice production areas of Guangdong Province, single basal application of the fertilizer saved the application rate of N and P by 22.1% and 21.8%, respectively, and increased the yield by 8.2%, compared with normal split fertilization.
Chen
Jiansheng
J
Soil and Fertilizer Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China.
Xu
Peizhi
P
Tang
Shuanhu
S
Zhang
Fabao
F
Xie
Chunsheng
C
D018533:Biomass; D005308:Fertilizers; D009584:Nitrogen / Q000032:analysis; D012275:Oryza / Q000191:economics* / Q000254:growth & development*; D010758:Phosphorus / Q000032:analysis; D013997:Time Factors
D005308:Fertilizers; D010758:Phosphorus; D009584:Nitrogen