摘要
在水稻一叶一心期或花生始花后25天,分别喷施200mg·L^(-1)或25mg·L^1PP333溶液,收获后水稻米粒中PP333残留量在检测极限以下,花生仁的残留量是26.7Pg/kgDW,对人类食用是安全的。PP333喷施水稻或花生后1～3天,主要分布于土壤表面0～5cm层,以后,PP333向下移动,6～10cm和11～15cm层的PP333含量就逐渐增加。随着处理天数的延长,土壤耕作层PP333的残留量减少,到处理后230天(水稻田)和130天(花生田)检测不出。
Early rice seedlings at 1. 5 leaf stage and spring peanut plants at 25 days after the begining of flowering period were treated with 200 mg/L and 25 mg/L PP333 solution, respectively. After harvest, the amount of PP333 in rice grain was undetectable and in peanut kernel was 26. 7μg/kg DW(less than the maximum residue limit), so they were safe for food. From 1 to 3 days after PP333 application, most of PP333 distributed in 0-5cm layer below soil surface, and gradually increased afterwords in 6-10cm and ll-15cm layers. However, the total content of PP333 in plough soil was reduced as the time elongation after treatment. The PP333 in soil could not be detected after 230 and 130 days of the treatment for rice and peanut field, respectively.
出处
《作物学报》
CAS
CSCD
北大核心
1997年第6期707-711,共5页
Acta Agronomica Sinica
基金
广东省科委重点研究项目
