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

作　　者：张跃 顾松平 ZHANG Yue;GU Songping(Huaihai Branch,Jiangsu Provincial Agricultural Reclamation and Development Co.,Ltd.,Yancheng 224354,China)

机构地区：[1]江苏省农垦农业发展股份有限公司淮海分公司,江苏盐城224354

出　　处：《大麦与谷类科学》2024年第2期29-32,共4页Barley and Cereal Sciences

基　　金：粮食绿色高质高效创建(2022-SJ-017-03)。

摘　　要：为了探讨在湿润渗透施肥法下,水稻促花肥与保花肥使用N与P2O5的不同配方组合对粳稻产量与产量结构的影响,选用生产上种植面积较大的粳稻品种淮稻5号为试验材料,将磷酸二铵、过磷酸钙与普通尿素在水稻促花肥中进行配施,设置1个不施促花肥与保花肥对照和3种促花肥施肥模式(处理1—3)。结果显示:施促花肥与保花肥的3个处理间水稻产量及产量结构无统计学意义,其产量平均较对照增产24.5%;促花肥中增施P2O5的2个处理(处理1、2)平均较对照增产26.5%,比促花肥只施尿素的处理3增产5.2%;促花肥中增施磷酸二铵的处理1比增施过磷酸钙的处理2增产2.3%。因此,粳稻一定要施促花肥与保花肥。建议在粳稻施促花肥时,增施磷酸二铵(8 kg/667 m^(2))或过磷酸钙(20 kg/667 m^(2))。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 m^(2)or superphosphate at a dosage of 20 kg/667 m^(2).

关 键 词：穗肥 促花肥 保花肥 粳稻 产量结构 产量 

分 类 号：S511.22[农业科学—作物学]