Effects of Different Formulas of Spikelet-promoting Fertilizer and Spikelet-preserving Fertilizer on Yield and Yield Structure of Geng Rice
In order to explore the effects of rice spikelet-promoting fertilizer and spikelet-preserving fertilizer with different formula combinations of N and P2O5 on the yield and yield structure of geng rice under the wet infiltration fertilization method,the geng rice variety Huaidao 5 with a larger planting area in production was selected as the experimental material.Diammonium phosphate,calcium superphosphate,and ordinary urea were mixed in the rice spikelet-promoting fertilizer.One control group(without the application of spikelet-promoting fertilizer and spikelet-preserving fertilizer)was set up,and three fertilization modes of spikelet-promoting fertilizer(treatment 1,2,and 3)were used to study the response of geng rice yield and its constituent factors to different N and P2O5 formulas of spikelet-promoting fertilizer and spikelet-preserving fertilizer.The results showed that there was no statistical significance in rice yield and yield structure between the three treatments,and the average yield increased by 24.5％compared with the control.The two treatments(treatment 1-2)with P2O5 application in spikelet-promoting fertilizer increased yield by 26.5％compared to the control,and increased yield by 5.2％compared to treatment 3 with only urea application in spikelet-promoting fertilizer.Treatment 1 with application of diammonium phosphate in spikelet-promoting fertilizer increased yield by 2.3％compared to treatment 2 with increased application of superphosphate in spikelet-promoting fertilizer.It is recommended to apply spikelet-promoting fertilizer and spikelet-preserving fertilizer to geng rice.When applying flower promoting fertilizer to geng rice,increase the application of diammonium phosphate at a dosage of 8 kg/667 m2 or superphosphate at a dosage of 20 kg/667 m2.
国家科技期刊平台
NSTL
万方数据
维普
