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Published on: May 10, 2020
[Nutrient use efficiency and yield-increasing effect of single basal application of rice specific controlled release
Jiansheng Chen1, Peizhi Xu, Shuanhu Tang
1Soil and Fertilizer Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China.
Abstract:
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.
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