大麦与谷类科学2024，Vol.41Issue(2)：29-32,4.DOI:10.14069/j.cnki.32-1769/s.2024.02.006
不同促花肥与保花肥配方对粳稻产量与产量结构的影响
Effects of Different Formulas of Spikelet-promoting Fertilizer and Spikelet-preserving Fertilizer on Yield and Yield Structure of Geng Rice
摘要
Abstract
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.关键词
穗肥/促花肥/保花肥/粳稻/产量结构/产量Key words
Panicle fertilizer/Spikelet-promoting fertilizer/Spikelet-preserving fertilizer/Geng rice/Field structure/Field分类
农业科技引用本文复制引用
张跃,顾松平..不同促花肥与保花肥配方对粳稻产量与产量结构的影响[J].大麦与谷类科学,2024,41(2):29-32,4.基金项目
粮食绿色高质高效创建(2022-SJ-017-03). （2022-SJ-017-03）
