摘要
建立稻田 -鱼塘模拟生态系统 ,以研究两种不同剂型农药好年冬乳油、米乐尔颗粒剂在稻田施用后的分布特性及其在环境的迁移、转化规律。结果表明 ,好年冬乳油使用初期 ,5 9 9%沾附在水稻植株上 ,33 4 %进入稻田水 ,它在稻田水中的初始浓度为 0 5 0 1mg/L ;米乐尔颗粒剂施入稻田后 ,在土壤中的初始浓度为 8 2 6mg/kg ,使用后快速崩解并向水体释放。好年冬、米乐尔在稻田 -鱼塘生态系统中消解较快 ,不易在生态系统中残留 。
This paper established a paddy field and fish-pond simulation ecosystem,to study the environment behavior of isazofos and carbosulfos in the ecosystem The results showed that 59 9% of carbosulfos was on paddy plant and 33 4% was dropped into paddy water in the initial usage The highest concentration of carbosulfos in paddy water was 0 501mg/L The initial concentration of isazofos in paddy soil was 8 26mg/kg and the granular was quickly released into water after applied in paddy field The risks on environment organisms of carbosulfos and isazofos used in paddy were low because they were degraded very quickly in paddy field ecosystem
出处
《农药》
CAS
北大核心
2002年第8期24-26,共3页
Agrochemicals
