基于筛选试验结果明确了甲氨基阿维菌素苯甲酸盐、灭幼脲和茚虫威3种对牡丹刺蛾高效的杀虫剂,并对其田间防治效果进行了研究。结果表明,5.7%甲氨基阿维菌素苯甲酸盐水分散粒剂4.5~7.5 g a.i./hm^(2)、25%灭幼脲悬浮剂112.5~187.5 g a.i....基于筛选试验结果明确了甲氨基阿维菌素苯甲酸盐、灭幼脲和茚虫威3种对牡丹刺蛾高效的杀虫剂,并对其田间防治效果进行了研究。结果表明,5.7%甲氨基阿维菌素苯甲酸盐水分散粒剂4.5~7.5 g a.i./hm^(2)、25%灭幼脲悬浮剂112.5~187.5 g a.i./hm^(2)和15%茚虫威悬浮剂22.5~31.5 g a.i./hm^(2)防治牡丹刺蛾幼虫效果优良,药后1~7 d,防效分别为78.75%~96.27%、49.69%~98.34%、80.20%~97.42%,对牡丹无药害,对非靶标生物无不良影响。3种杀虫剂可作为牡丹刺蛾防治推荐药剂。展开更多
The aim of the Daya Bay reactor antineutrino experiment is to determine the neutrino mixing angle 813 with a sensitivity of 0.01 or better at 90% confidence level. In order to improve the position resolution of both t...The aim of the Daya Bay reactor antineutrino experiment is to determine the neutrino mixing angle 813 with a sensitivity of 0.01 or better at 90% confidence level. In order to improve the position resolution of both the positron interaction and the neu- tron capture, the inside of the antineutrino detectors should be as unreflecting as possible. A black matt fluorocarbon paint is coated on the inner surface of the detectors made of 304L stainless steel to meet the physical requirement. This paint is com- patible with mineral oil, has low radioactivity, is easy to spray and fast curing at normal temperatures. The coating has excel- lent performance such as good adhesive force, uniformity, compact, scratch and wear resistance, and so on. It is the first appli- cation of such paint to large physical devices.展开更多
文摘基于筛选试验结果明确了甲氨基阿维菌素苯甲酸盐、灭幼脲和茚虫威3种对牡丹刺蛾高效的杀虫剂,并对其田间防治效果进行了研究。结果表明,5.7%甲氨基阿维菌素苯甲酸盐水分散粒剂4.5~7.5 g a.i./hm^(2)、25%灭幼脲悬浮剂112.5~187.5 g a.i./hm^(2)和15%茚虫威悬浮剂22.5~31.5 g a.i./hm^(2)防治牡丹刺蛾幼虫效果优良,药后1~7 d,防效分别为78.75%~96.27%、49.69%~98.34%、80.20%~97.42%,对牡丹无药害,对非靶标生物无不良影响。3种杀虫剂可作为牡丹刺蛾防治推荐药剂。
基金supported in part by the Ministry of Science and Technology of China (Gramt No. 2006CB808100)supported by the National Natural Science Foundation of China(Grant No. 11005117)
文摘The aim of the Daya Bay reactor antineutrino experiment is to determine the neutrino mixing angle 813 with a sensitivity of 0.01 or better at 90% confidence level. In order to improve the position resolution of both the positron interaction and the neu- tron capture, the inside of the antineutrino detectors should be as unreflecting as possible. A black matt fluorocarbon paint is coated on the inner surface of the detectors made of 304L stainless steel to meet the physical requirement. This paint is com- patible with mineral oil, has low radioactivity, is easy to spray and fast curing at normal temperatures. The coating has excel- lent performance such as good adhesive force, uniformity, compact, scratch and wear resistance, and so on. It is the first appli- cation of such paint to large physical devices.
