施用磷肥对水稻产量结构及经济效益的影响  

Effect of Applying Phosphate Fertilizer on Rice Yield Structure and Economic Benefit

作　　者：樊禄芹 樊禄栋 FAN Lu-qin;FAN Lu-dong(Agricultural Technology Extension Service Center,Hede Town,Sheyang County,Jiangsu Province,Yancheng Jiangsu 224300,China;Lvdong Agricultural Resources Management Department,Linhai Town,Sheyang County,Jiangsu Province,Yancheng Jiangsu 224354,China)

机构地区：[1]江苏省射阳县合德镇农业技术推广服务中心,江苏盐城224300 [2]江苏省射阳县临海镇绿栋农资经营部,江苏盐城224354

出　　处：《北方水稻》2020年第4期20-23,共4页North Rice

摘　　要：为了了解磷肥用量对水稻产量结构及经济效益的影响,2019年在水稻上进行了施磷酸二铵试验。试验结果表明,若要获得10500 kg/hm^2以上的产量,五氧化二磷最佳施用量为86.25 kg/hm^2左右,折合成磷酸二铵约187.5 kg/hm^2。水稻施用磷肥分两次施用效果较好,第一次作基肥使用,施磷酸二铵112.5~50 kg/hm^2;第二次作穗肥(倒四叶左右)使用,施磷酸二铵75 kg/hm^2。In order to understand the effect of phosphate fertilizer dosage on rice yield structure and economic benefits,a test of diammonium phosphate application was conducted on rice in 2019.The results showed that the optimal application amount of phosphorus pentoxide was about 86.25 kg/hm^2,which was converted into diammonium phosphate about 187.5 kg/hm^2,in order to obtain a yield of more than 10500 kg/hm^2.The effect of applying phosphate fertilizer on rice was better in two times.For the first time,diammonium phosphate(50~112.5 kg/hm^2)was applied as basal fertilizer.Panicle fertilizer was used for the second time(The bottom four leaves),diammonium phosphate was applied at 75 kg/hm^2.

关 键 词：水稻 磷肥 试验 

分 类 号：S143.2[农业科学—肥料学]