Arid
Field dissipation of prometryn, oxyfluorfen and imazethapyr in Mollisol and Vertisol soils
Dumas, Jose A.1; Semidey, Nelson2; Cacho, Carmen3; Casanova, Priscila3
通讯作者Dumas, Jose A.
来源期刊JOURNAL OF AGRICULTURE OF THE UNIVERSITY OF PUERTO RICO
ISSN0041-994X
出版年2008
卷号92期号:3-4页码:183-195
英文摘要

Dissipation rate of prometryn, oxyfluorfen and imazethapyr was estimated in the Mollisol San Anton and the Vertisol Fraternidad soil series, both soils from the south semi-arid coastal region of Puerto Rico. The study was carried out In two consecutive years. The herbicides were applied one day after seeding pigeon peas at Juana Diaz (San Anton soil series) and Lajas (Fraternidad soil series) Agricultural Experiment Substations. Herbicide rates were 2.24, 0.28 and 0.070 kg ai/ha for prometryn, oxyfluorfen and imazethapyr, respectively. Soil samples at 15-cm depth were collected at 0, 28, 56,112 and 168 days after application. Field half-lives between 2 and 43, 31 and 88, and 19 and 46 days were found for prometryn, oxyfluorfen and imazethapyr, respectively. Substantial dissipation rate variability for above mentioned herbicides has been shown to occur within the soil and year treatments. These findings suggest very short and variable persistence for the three herbicides in both soils under a tropical climate.


英文关键词prometryn imazethapyr oxyfluorfen tropics field dissipation persistence
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000265588700004
WOS关键词PERSISTENCE ; HERBICIDES ; TEMPERATURE ; PESTICIDES ; IMAZAQUIN ; CLOMAZONE ; ATRAZINE ; SORPTION ; TILLAGE ; FATE
WOS类目Agriculture, Multidisciplinary
WOS研究方向Agriculture
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/157837
作者单位1.Univ Puerto Rico, Agr Expt Stn, Dept Crop Protect, San Juan, PR 00926 USA;
2.Agr Expt Stn, Dept Crop Protect, Lajas, PR USA;
3.Agr Expt Stn, Cent Analyt & Pesticide Labs, Lajas, PR USA
推荐引用方式
GB/T 7714
Dumas, Jose A.,Semidey, Nelson,Cacho, Carmen,et al. Field dissipation of prometryn, oxyfluorfen and imazethapyr in Mollisol and Vertisol soils[J],2008,92(3-4):183-195.
APA Dumas, Jose A.,Semidey, Nelson,Cacho, Carmen,&Casanova, Priscila.(2008).Field dissipation of prometryn, oxyfluorfen and imazethapyr in Mollisol and Vertisol soils.JOURNAL OF AGRICULTURE OF THE UNIVERSITY OF PUERTO RICO,92(3-4),183-195.
MLA Dumas, Jose A.,et al."Field dissipation of prometryn, oxyfluorfen and imazethapyr in Mollisol and Vertisol soils".JOURNAL OF AGRICULTURE OF THE UNIVERSITY OF PUERTO RICO 92.3-4(2008):183-195.
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