摘要
通过田间小区试验评价28%双唑草腈悬浮剂对移栽水稻的安全性,测定28%双唑草腈悬浮剂对寒地水稻移栽田杂草的防效,形成28%双唑草腈悬浮剂在寒地水稻移栽田应用技术。结果表明:28%双唑草腈悬浮剂在水稻移栽前或移栽后一次施药和移栽前后两次施药,水稻均未发生干枯、褪绿黄化、扭曲皱缩畸形等药害症状,对水稻安全;28%双唑草腈悬浮剂对慈姑和雨久花表现出较好防效。水整地后,待泥浆自然沉降水面澄清后甩喷施药,施药时水层3~5 cm,保水5~7d,水稻移栽前5~7 d施用28%双唑草腈悬浮剂25 ml/667 m2,水稻移栽后15~20 d施用28%双唑草腈悬浮剂55ml/667 m2,对水稻安全,能够有效防治田间杂草。
Through field plot experiments,the safety of 28%Dithiophos Suspension Agent on transplanted rice was evaluated,and the control efficacy of 28%Dithiophos Suspension Agent on weeds in cold region rice transplanting fields was determined.The application technology of 28%Dithiophos Suspension Agent in cold region rice transplanting fields was formed.The results showed that when 28%Dithiophos Suspension Agent was applied once before or after rice transplanting,or twice before and after rice transplanting,no symptoms of plant injury such as wilting,chlorosis,distortion and abnormal growth occurred in rice,and it was safe for rice.28%Dithiophos Suspension Agent showed good control efficacy on water chestnut and rain flower.After plowing the soil,wait for the mud slurry to naturally settle and the water surface to become clear,then spray the pesticide.During spraying,the water layer was 3~5 cm,and the water retention time was 5~7 days.When 28%Dithiophos Suspension Agent was applied 25 ml/667 m25~7 days before rice transplanting and 55 ml/667 m215~20 days after rice transplanting,it was safe for rice and could effectively control weeds in the field.
作者
伦志安
夏玄
冯涛
徐瑶
LUN Zhi-an;XIA Xuan;FENG Tao;XU Yao(Plant Protection Research Institute,Academy of Land Reclamation Sciences,Harbin 150036,China;Heilongjiang Agricultural Engineering Vocational College,Harbin 150025,China)
出处
《北方水稻》
2026年第2期63-67,共5页
Northern Rice
基金
北大荒集团种业创新发展项目“主要农作物专属品种配套植保技术开发应用与示范”(2022ZY0102-02-07)
高标准农田建设和黑龙江垦区社会公益性事务专项课题“水稻田杂草抗性鉴定及防控技术研究”(KJZX202204-08)。
关键词
水稻
双唑草腈
杂草
防效
Rice
Dithiophos
Weeds
Control efficacy
