Wednesday, July 5, 2023
问题:锈病和白粉病虽然表现的症状不同,但是它们都可以用同种药剂防治。...
Monday, March 18, 2024
问题:许多化学合成农药均是由天然产物先导化合物(人工合成的模板)衍生而来。如杀虫剂中的沙蚕毒类先导化合物是(),拟除虫菊酯先导化合物是()。...
Sunday, January 14, 2024
问题:悬浮剂、微乳剂、颗粒剂、水乳剂是未来农药的发展趋势。...
Thursday, September 15, 2022
Wednesday, October 25, 2023
Monday, September 12, 2022
Friday, March 15, 2024
Monday, August 14, 2023
问题:有机磷类杀虫剂占中国杀虫剂市场的60%以上分额,占有的比份最大。...
Wednesday, October 25, 2023
问题:阿维菌素属于微生物农药类农药,功夫则是菊酯类农药。...
Monday, February 13, 2023
Tuesday, April 16, 2024
Monday, April 22, 2024
Tuesday, April 16, 2024
Monday, September 12, 2022
Saturday, October 8, 2022
Monday, June 26, 2023
Saturday, February 4, 2023
问题:农药毒性试验分别以下四个阶段:第一阶段:();第二阶段:();第三阶段:();第四阶段:()。...
Monday, April 22, 2024
问题:棉铃虫对黄色的光有趋性,所以在菜田中可用黄板进行诱杀。...
Monday, September 12, 2022
Friday, March 15, 2024