| 喷头和施药液量对水稻植株上农药沉积和药剂防治效果的影响 |
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| Citation：徐德进,徐广春,许小龙,徐鹿,顾中言,邱白晶.喷头和施药液量对水稻植株上农药沉积和药剂防治效果的影响.Journal of Plant Protection,2019,46(2):409-416 |
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| Author Name | Affiliation | E-mail | | Xu Dejin | Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, Jiangsu Province, China
Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education
Jiangsu University, Zhenjiang 212013, Jiangsu Province, China | | | Xu Guangchun | Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, Jiangsu Province, China | | | Xu Xiaolong | Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, Jiangsu Province, China | | | Xu Lu | Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, Jiangsu Province, China | | | Gu Zhongyan | Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, Jiangsu Province, China | guzy@jaas.ac.cn | | Qiu Baijing | Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education
Jiangsu University, Zhenjiang 212013, Jiangsu Province, China | |
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| 中文摘要:为明确喷头及施药液量对水稻植株上农药沉积及药剂防治效果的影响，采用丽春红-G示踪法测定了4种喷头ST11001、ST11002、TR8001、TR8002在不同施药液量条件下喷雾农药在水稻植株上的沉积分布特性，并比较了4种喷头施用相同剂量的40%氯虫苯甲酰胺·噻虫嗪WDG对水稻纵卷叶螟Cnaphalocrocis medinalis和褐飞虱Nilaparvata lugens的防治效果。结果表明，选择ST11002和TR8001喷头，在施药液量300 L/hm2条件下喷雾，单株水稻上的丽春红-G沉积量分别达到27.55 μg和28.16 μg；选择ST11001和TR8002喷头，在施药液量900 L/hm2条件下喷雾，单株水稻上的丽春红-G沉积量仅分别为12.27 μg和14.86 μg。喷头和施药液量的改变不影响水稻植株上农药沉积分布特性，均为上层沉积量 > 中层沉积量 > 下层沉积量。当施药液量从300 L/hm2增加到900 L/hm2，4种喷头ST11001、ST11002、TR8001、TR8002喷雾在水稻基部的雾滴密度分别增加了8.21、8.54、7.79和9.69倍；但在相同施药液量下，4种喷头在水稻基部的雾滴密度没有显著差异。同一剂量下，喷头和施药液量不同组合的防治效果间差异显著。表明针对稻田不同防治对象，选择合适的喷头及施药液量将有助于提高农药沉积及防治效果。 |
| 中文关键词:喷头 施药液量 沉积 雾滴密度 防治效果 |
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| Influence of spray nozzle and spray volume on pesticide deposition and control effect in rice |
| Author Name | Affiliation | E-mail | | Xu Dejin | Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, Jiangsu Province, China
Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education
Jiangsu University, Zhenjiang 212013, Jiangsu Province, China | | | Xu Guangchun | Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, Jiangsu Province, China | | | Xu Xiaolong | Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, Jiangsu Province, China | | | Xu Lu | Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, Jiangsu Province, China | | | Gu Zhongyan | Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, Jiangsu Province, China | guzy@jaas.ac.cn | | Qiu Baijing | Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education
Jiangsu University, Zhenjiang 212013, Jiangsu Province, China | |
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| Abstract:In order to clarify the influence of the spray nozzle and spray volume affect the deposition of pesticides and the biological effects of pesticides on rice plants, trace method was used. Four types of spray nozzles, ST11001, ST11002, TR8001 and TR8002, were compared. The control efficiency against Cnaphalocrocis medinalis and Nilaparvata lugens were compared by spraying the same dose 40% chlorantraniliprole·thiamethoxam WDG with four spray nozzles. The results showed that the deposition of ponceau-G on a single rice plant reached 27.55 μg and 28.16 μg respectively with ST11002 and TR8001 spray nozzles spraying at 300 L/hm2 with the same amount of ponceau-G. The depositions of ponceau-G on a single rice plant were 12.27 μg and 14.86 μg respectively with ST11001 and TR8002 spray nozzles spraying at 900 L/hm2. The change of spray nozzles and spray volume did not affect the trend of pesticide deposition on rice plants, namely, upper layer > middle layer > lower layer. There was no significant difference in droplet density at the base of the rice by four spray nozzles with the same spray volume. If the spray volume increased from 300 L/hm2 to 900 L/hm2, the droplet density at the base of the rice by four spray nozzles increased 8.21, 8.54, 7.79 and 9.69 times respectively. Under the same dose condition, there was a significant difference of the control effect with the different combinations of the spray nozzles and spray volumes. The results indicated that in the control of different rice pests and diseases, choosing suitable spray nozzles and using proper spray volume would contribute to better pesticide deposition and control effects. |
| keywords:spray nozzle spray volume deposition droplet density control effect |
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