Journal of Environmental Biology

Integration of herbicides with manual weeding for controlling the weeds in rice under saline environment

M.A. Hakim^1,2, Abdul Shukor Juraimi³*, M.M. Hanafi¹, Mohd. Y. Rafii¹,? Mohd Razi Ismail¹,

S.M. Rezaul Karim⁴ and H. Kausar¹

¹Institute of Tropical Agriculture, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia

²Department of Agricultural Chemistry, Hajee Mohammad Danesh Science and Technology University, Dinajpur-5200, Bangladesh

³Department of Crop Science, Universiti Putra Malaysia 43400 UPM Serdang, Selangor, Malaysia

4Faculty of Agro Based Industry, University Malaysia Kelantan, Jeli Campus, Malaysia

*Corresponding Author E-mail: ashukor@agri.upm.edu.my

Publication Data

Paper received:

08 August 2014

Revised received:

05 January 2015

Accepted:

20 March 2015

Abstract

The pot experiment was conducted to select appropriate integrated weed management method in rice under different salinity levels (0, 4 and 8 dS m-1). All the parameters including rice and weed measured were significantly influenced by weed control treatments at all salinity levels. Treatments including weed-free condition, Pretilachlor @ 0.375 kg ai ha^-1 + hand weeding, Propanil + Thiobencarb @ 0.9 kg ai ha^-1 and 1.8 kg ai ha^-1 + hand weeding performed better under all salinity levels. Pretilachlor @ 0.375 kg ai ha^-1 with one round of hand weeding and propanil + thiobencarb 0.9 kg ai ha^-1 + 1.8 kg ai ha^-1 with one round of hand weeding were comparable to weed-free yields, and were superior to other treatments under salinity condition. Considering all the parameters, pretilachlor @ 0.375 kg ai ha^-1 + one round of hand weeding (at 65 DAT), propanil + thiobencarb 0.9 kg ai ha^-1 +1.8 kg ai ha^-1 + one round of hand weeding (at 65 DAT) gave the most effective control of weeds in rice under saline environments. ????  

 Key words

Hand weeding, Herbicides, Integration, Weed Management, Rice, Saline environment 

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