Critical Period of Weed Control in Aerobic Rice

المؤلفون المشاركون

Puteh, A.
Juraimi, Abdul Shukor
Samedani, B.
Man, A.
Anwar, M. P.

المصدر

The Scientific World Journal

العدد

المجلد 2012، العدد 2012 (31 ديسمبر/كانون الأول 2012)، ص ص. 1-10، 10ص.

الناشر

Hindawi Publishing Corporation

تاريخ النشر

2012-06-18

دولة النشر

مصر

عدد الصفحات

10

التخصصات الرئيسية

العلوم الطبيعية والحياتية (متداخلة التخصصات)
الطب البشري
تكنولوجيا المعلومات وعلم الحاسوب

الملخص 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.

نمط استشهاد جمعية علماء النفس الأمريكية (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

نمط استشهاد الجمعية الأمريكية للغات الحديثة (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

نمط استشهاد الجمعية الطبية الأمريكية (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

نوع البيانات

مقالات

لغة النص

الإنجليزية

الملاحظات

Includes bibliographical references

رقم السجل

BIM-484247