摘要
[目的]探索不同种类飞防助剂产品对植保无人飞机高浓度药液在杧果叶片上润湿性的影响。[方法]试验研究了添加4种1%不同类型飞防助剂产品后,1%乙基多杀菌素药液表面张力和动态表面张力及药液在杧果叶片正面背面接触角、润湿面积和蒸发时间的变化。[结果]4种飞防助剂产品均能降低药液的表面张力,降低药液在杧果叶片上的接触角,增大药液在叶片上的润湿面积,提高药液在叶片表面的润湿性,且各处理药液液滴相较于杧果叶片背面更容易在正面润湿。添加聚醚改性七甲基三硅氧烷助剂药液的表面张力、接触角最小,在杧果叶片上的铺展面积最大,但是其蒸发时间也最短。添加超支化脂肪醇醚改性聚合物助剂药液在叶片背面润湿面积最大,在叶片正反面蒸发时间最长。[结论]不同类型飞防喷雾助剂功能特点不同,在实际应用的过程中应根据作物叶片结构特点和防治对象危害特点选择合适种类的助剂产品。
[Aims]This study aim to explore the impact of various adjuvants on the wettability of plant protection unmanned aerial vehicles(UAVs)solution on mango leaves.[Methods]After adding 1%of 4 different pesticide adjuvants,the changes of surface tension and dynamic surface tension of spinetoram 1%solution and the contact angle,wetting area,and evaporation time of the solution on the front and back of mango leaves were studied.[Results]The results showed that adding different kinds of pesticide adjuvants could reduce the surface tension and contact angle of the solution,increase the wetting area,short the evaporation time,and improve the wettability of the solution on the leaf surface.The droplets were more easily to wet the front of the leaves.The surface tension and the contact angle of the solution added polyalkyleneoxide modified heptamethyltrisiloxane adjuvant were the smallest,with the largest spreading area on the leaves and the shortest evaporation time.The solution added hyperbranched fatty alcohol ether modified polymer had the largest wetting area on the back of the leaves,and the longest evaporation time on the front and back of the leaves.[Conclusions]Different types of spray adjuvants have different functions and characteristics.In the practical application of pesticide adjuvants,it is crucial to select the suitable type of adjuvant products based on the characteristics of crop leaf structure and the damage characteristics of the control object to crops.
作者
潘波
杜长远
王冰洁
林勇
姜蕾
PAN Bo;DU Changyuan;WANG Bingjie;LIN Yong;JIANG Lei(Environment and Plant Protection Institute,Chinese Academy of Tropical Agricultural Sciences,Key Laboratory of Integrated Pest Management of Tropical Crops,Ministry of Agriculture&Rural Affairs,Haikou 571101,China;College of Plant Science and Technology,Huazhong Agricultural University,Wuhan 430070,China)
出处
《农药》
CAS
CSCD
北大核心
2024年第12期888-893,共6页
Agrochemicals
基金
海南省自然科学基金面上项目(321MS074)
中国热带农业科学院基本科研业务费专项资金(1630042022011)。
