敌草快二氯盐航空施药技术对水稻催枯效果的应用研究  

Study of Aviation Application Technology of Diquat Dichloride Against Rice Dehydrating

作　　者：董利霞 邢平 左平春 米刚 刘伟 杲昌盛 景裕娜 李闯 石洪宇 李政彤 王志杰 徐艳飞 Dong Lixia;Xing Ping;Zuo Pingchun;Mi Gang;Liu Wei;Gao Changsheng;Jing Yuna;Li Chuang;Shi Hongyu;Li Zhengtong;Wang Zhijie;Xu Yanfei(Beijing Yuanxingjiahe Pesticide Technology Center,Beijing 101200,China;Nanjing Red Sun Co.,Ltd.Nanjing Jiangsu 211100,China)

机构地区：[1]北京元兴嘉禾农药技术中心,北京101200 [2]南京红太阳股份有限公司,江苏南京211100

出　　处：《农药科学与管理》2023年第5期45-51,共7页Pesticide Science and Administration

摘　　要：为了评价20%敌草快二氯盐可溶液剂在助剂作用下对水稻的催枯效果,在水稻成熟后期(收获前7 d),配制不同含量梯度的试验药剂、助剂,采用植保无人机对水稻进行航空喷施催枯试验。结果表明:使用20%敌草快二氯盐可溶液剂(100~130 g/667 m^(2))+“红太阳同于道”或助剂T 15%(10~20 mL/667 m^(2))喷施水稻7 d后,对水稻催枯效果明显,药后4 d水稻上部叶片和稻穗均已基本干枯;籽粒含水量显著降低,平均含水量为14.06%~16.86%;且对水稻千粒重和产量无明显影响。雾滴在水稻冠层上、中、下3层的沉积量呈现递减趋势,使用“红太阳同于道”或T 15%助剂,可提高药液在水稻植株上的沉积量和穿透率。To evaluate the dehydration of 20%diquat dichloride SL(soluble concentrate)on rice with adjuvants,a study was conducted in the late stage(7 d before harvest)of rice ripening on the preparations with the different ratio of the tested formulations and adjuvants.And then the aerial spray tests were performed on rice using an unmanned aerial vehicle.The results showed that the combination use of 20%diquat dichloride SL(100~130 g/667 m^(2))+“Hongtaiyang tongyudao”or adjuvants T15%(10~20 mL/667 m^(2))on rice for 7 days,a significant dehydration effect was observed.After 4 days of treatment,both the upper leaves of rice and the rice panicle have been largely dried,and the grain water content was significantly reduced,with an average moisture content ranging from 14.06%to 16.86%.Furthermore,there was no significant impact on the thousand grain weight and yield of the rice.The deposition amount of the spray droplets on the top,middle,and bottom 3 layers of rice canopy showed a decreasing trend,and the deposited amount and penetration rate of the test agent solution on rice plants were improved by using“Hongtaiyang tongyudao”or T15%adjuvants.

关 键 词：敌草快二氯盐 航空施药 水稻 催枯 

分 类 号：S482.8[农业科学—农药学] S481.9[农业科学—植物保护]