水稻中后期喷施叶面肥对“南粳46”相关性状与产量影响及效益分析  

Effect and Benefit Analysis of Leaf Surface Fertilizer Spraying on Related Characters and Yield of “Nangeng-46” in Middle and Late Stage of Rice

作　　者：盛明 孙子荀 周正权 李育娟 SHENG Ming;SUN Zi-xun;ZHOU Zheng-quan;LI Yu-juan(Agriculture and Rural Affairs Bureau of Xishan District,Wuxi Jiangsu 214101,China;Wuxi Huishan District Agricultural Development Service Center,Wuxi Jiangsu 214174,China;Wuxi Agricultural Technology Extension Center,Wuxi Jiangsu 214100,China)

机构地区：[1]无锡市锡山区农业农村局,江苏无锡214101 [2]无锡市惠山区农业发展服务中心,江苏无锡214174 [3]无锡市农业技术推广中心,江苏无锡214100

出　　处：《北方水稻》2024年第6期26-29,共4页NORTHERN RICE

基　　金：江苏现代农业(稻麦)产业技术体系建设项目(JATS[2023]040)。

摘　　要：选择可与防病治虫药剂混用的不同叶面肥,在水稻中后期喷施进行试验,结果表明,在水稻中后期分别喷施养正水溶肥、保美乐、动力PK和三十烷醇均能显著提高“南粳46”产量,增幅分别达8.37%、5.71%、7.07%和3.47%;不同叶面肥的增产途径不尽相同,养正和动力PK主要通过增加每穗总粒和粒重、保美乐通过提高结实率和增加粒重、三十烷醇通过增加粒重来提高产量。喷施动力PK或养正水溶肥的产投比达9以上,大面积生产上可结合病虫防治,在水稻拔节孕穗期至抽穗扬花期喷施2~3次。Different leaf fertilizers that can be mixed with insecticides for disease control and pest control were applied in the middle and late stages of rice.The results showed that the yield of “Nangeng-46”could be significantly increased by 8.37%,5.71%,7.07%and 3.47%,respectively.The ways of increasing yield were different for different foliar fertilizers.The main ways of increasing yield were increasing total grain and grain weight per panicle by Yangzheng water-soluble fertilizer and Dongli-PK,increasing seed setting rate and grain weight by Baomeile,and increasing grain weight by Triacontanol.The yield and investment ratio of Dongli-PK or Yangzheng water-soluble fertilizer spraying is more than 9,and it can be combined with disease and insect control in large area production,spraying 2~3 times from jointing booting stage to heading and flowering stage of rice.

关 键 词：水稻 叶面肥 南粳46 产量 产投比 

分 类 号：S511.062[农业科学—作物学]