摘要
为了探索机动药械喷洒农药防治水稻病虫害经济、安全、高效技术方案 ,采用泰山 - 18BC型背负机水平沉积法喷洒 2 0 %的三环唑可湿性粉剂防治双季早稻稻瘟病 ,分别用药 0 .9,1.2 ,1.5 kg/ hm2 ,分 5 ,10 L 喷量 ,选择 2和 4开度规范行走施药 .结果表明 ,以 1.5 kg/ hm2 ,喷量 10 L 对叶瘟和穗瘟药后第 7天和第 14天的防效最好 ,与低药量、低喷量处理和手动喷雾器 10 0 g,喷量 40 L处理的差异达显著水平 .机动药械喷洒比手动大容量喷洒可减少农药用量 30 %~ 40 % ,节省用水量 75 % ,工效提高
To work out an economic,safe and high effective method for rice blast control,Taishan 18BC type knapsack spray was used to spray 20% tricylazole dissolvable dust by horizontal sedment method.The power volumes are 0.9,1.2,1.5 kg/hm 2,and the spray volumes are 5,10 L respectively.The spray nozzle valve was switched at 2 and 4 degree for walk application.The results show that the appliation of 1.5 kg/hm 2 in 10 L spray has the best effects on leaf blast and ear blast at the 7th day and 14th day after application.Compared to other treatments of fewer dosage and low volume and hand spray with 100 g of dosage in 40 L,the differences between the treatments reach significant level.Compared to hand large volum spray,motorized spray reduces insecticide volume by 30%~40%,saving water by 75% and promote work efficiency by over 10 times.
出处
《湖南农业大学学报(自然科学版)》
CAS
CSCD
北大核心
2001年第3期200-201,共2页
Journal of Hunan Agricultural University(Natural Sciences)
基金
湖南省科技厅资助项目 (977KY10 0 1)
关键词
机动药械
稻瘟病
用药量
喷量
施药技术
药效
motorized insecticide
rice blast
dosage
spray volume
control effect