Effect of long-term Vetch (Vicia villosa) cover crop and tillage system on fluometuron dissipation from surface soil

被引：20

作者：

Brown, BA ^{[1
]}

Hayes, RM ^{[1
]}

Tyler, DD ^{[1
]}

Mueller, TC ^{[1
]}

机构：

[1] UNIV TENNESSEE,KNOXVILLE,TN 37996

来源：

WEED SCIENCE | 1996年 / 44卷 / 01期

关键词：

fluometuron; (N; N-dimethyl-N'-; 3-(trifluoromethyl)phenyl]urea); cotton; Gossypium hirsutum L DLP 50; vetch; Vicia villosa Roth; degradation; persistence; no-till; bioavailability;

D O I：

10.1017/S0043174500093735

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

This research examined the effect of mechanical soil disturbance (none or tilled) and legume crop residues (none or hairy vetch) on fluometuron dissipation for 2 yr from the top 0 to 8 cm of soil in a 10 yr field experiment. Soil pH in the upper 0 to 8 cm was less than or equal to 5.6, and soil organic matter was highest in plots not-tilled and plots which had a vetch cover crop. Calculated initial half-lives of fluometuron ranged from 19 to 38 d in the 2 yr. Neither tillage nor cover crop influenced early-season fluometuron dissipation. However, there were detectable amounts of fluometuron in all treatments 1 yr after application.

引用

页码：171 / 175

页数：5

共 20 条

[1] HERBICIDE DEGRADATION IN SOIL - INFLUENCE OF MICROBIAL BIOMASS [J].