Critical Period of Weed Control in Aerobic Rice
Joint Authors
Puteh, A.
Juraimi, Abdul Shukor
Samedani, B.
Man, A.
Anwar, M. P.
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-06-18
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Natural & Life Sciences (Multidisciplinary)
Medicine
Information Technology and Computer Science
Abstract EN
Critical period of weed control is the foundation of integrated weed management and, hence, can be considered the first step to design weed control strategy.
To determine critical period of weed control of aerobic rice, field trials were conducted during 2010/2011 at Universiti Putra Malaysia.
A quantitative series of treatments comprising two components, (a) increasing duration of weed interference and (b) increasing length of weed-free period, were imposed.
Critical period was determined through Logistic and Gompertz equations.
Critical period varied between seasons; in main season, it started earlier and lasted longer, as compared to off-season.
The onset of the critical period was found relatively stable between seasons, while the end was more variable.
Critical period was determined as 7–49 days after seeding in off-season and 7–53 days in main season to achieve 95% of weed-free yield, and 23–40 days in off-season and 21–43 days in main season to achieve 90% of weed-free yield.
Since 5% yield loss level is not practical from economic view point, a 10% yield loss may be considered excellent from economic view point.
Therefore, aerobic rice should be kept weed-free during 21–43 days for better yield and higher economic return.
American Psychological Association (APA)
Anwar, M. P.& Juraimi, Abdul Shukor& Samedani, B.& Puteh, A.& Man, A.. 2012. Critical Period of Weed Control in Aerobic Rice. The Scientific World Journal،Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-484247
Modern Language Association (MLA)
Anwar, M. P.…[et al.]. Critical Period of Weed Control in Aerobic Rice. The Scientific World Journal No. 2012 (2012), pp.1-10.
https://search.emarefa.net/detail/BIM-484247
American Medical Association (AMA)
Anwar, M. P.& Juraimi, Abdul Shukor& Samedani, B.& Puteh, A.& Man, A.. Critical Period of Weed Control in Aerobic Rice. The Scientific World Journal. 2012. Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-484247
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-484247