摘要
【目的】分析不同喷药处理喷施33%二甲戊灵乳油对棉田杂草防效及棉花生长发育的影响,为棉田无人机播前喷施除草剂提供理论依据。【方法】在新疆机采棉种植模式下,选择土壤封闭剂二甲戊灵为供试除草剂,设计播前无人机3个不同浓度喷药,车载喷药机喷药和不喷药5个处理,分析不同处理对棉田杂草防效及棉花生长发育的影响。【结果】无人机喷施二甲戊灵进行棉田播前土壤处理,处理2(3450 mL/hm^(2)时)控草效果与车载喷药机处理相当,防治效果均达到94.00%,且显著好于不施药效果,出苗率均达59.71%,与不施药处理差异不显著。增加药剂浓度1200 mL/hm^(2)对棉花出苗有影响,出苗率降低7.54%,但差异不显著。无人机喷药处理株高、叶龄、地上部干物质重、叶面积指数与车载喷药机喷药处理间差异不显著,显著高于不喷药处理。【结论】无人机喷施播前二甲戊灵浓度3450 mL/hm^(2)时与车载喷药机喷施浓度3450 mL/hm^(2)防草效果和棉花生长发育相当,可在大田推广使用。
【Objective】To analyze the effects of spraying 33%dimethylpropyl on weed control and cotton growth in cotton field under different spraying treatments and provide a theoretical basis for spraying herbicide in cotton field before UAV sowing.【Methods】In this study,under the planting mode of mechanically harvested cotton in Xinjiang,the soil sealant dimetalin was selected as the test herbicide,and 5 treatments with different concentrations were designed before sowing by unmanned aerial vehicle(UAV)spraying,and 5 treatments with locomotive spraying and 5 treatments without spraying to analyze the effects of different treatments on weed control efficiency and cotton growth and development in cotton fields.【Results】In the soil treatment of cotton field before sowing,the grass control effect of treatment 2(at the dosage of 3,450 mL/hm^(2))was similar to that of locomotive spraying,and the control effect reached 94.00%,which was significantly better than that of treatment without application,and the seedling emergence rate reached 59.71%,which was not significantly different from that of treatment without application.Increasing the concentration of 1,200mL/hm^(2)had an effect on cotton seedling emergence,and the seedling emergence rate was decreased by 7.54%,but the difference was not significant.Secondly,there were no significant differences in plant height,leaf age,aboveground dry matter weight,leaf area index(LAI)between UAV spraying treatment and locomotive spraying treatment,but significantly higher than that without spraying treatment.【Conclusion】When the concentration of dimetalin was 3,450 mL/hm^(2)before spraying with UAV,it has the same effect on weed control as the growth and development of cotton,so it could be recommended to be used in the field in the future.
作者
张栋海
魏俊梅
陈兵
吉光鹏
王凡
牛蛉磊
ZHANG Donghai;WEI Junmei;CHEN Bing;JI Guangpeng;WANG Fan;NIU Linglei(Institute of Agricultural Science and Technology of Third Division,Xinjiang Production and Construction Corps,Tumxuk Xinjiang 843901,China;Cotton Institute,Xinjiang Academy Agricultural and Reclamation Sciences,Shihezi Xinjiang 832003,China)
出处
《新疆农业科学》
CAS
CSCD
北大核心
2022年第12期3022-3029,共8页
Xinjiang Agricultural Sciences
基金
新疆兵团领军人才计划(2019CB018)
自治区天山英才计划
国家棉花产业技术体系项目(CARS-18-49)。
关键词
棉田
植保无人机
除草剂
防除杂草
效果评价
生长发育
cotton
plant-protection UAV
herbicides
control of weed
effect evaluation
growth characters
作者简介
张栋海(1985-),男,甘肃武威人,硕士,副研究员,研究方向为病虫害综合防治,(E-mail)1498961443@qq.com;通信作者:陈兵(1979-),男,甘肃高台人,研究员,博士,研究方向为作物栽培生理,(E-mail)zyrcb@126.com。
