EVALUATION OF OXADIARGYL HERBICIDE IN RICE WEED CONTROL

F. Hassan, Saad; S. Hassan, Dalia; I. Mohammed, Layla; Y. Hadi, Akeel; K. Homadi, Sadek; N. Khadim, Ali

	EVALUATION OF OXADIARGYL HERBICIDE IN RICE WEED CONTROL
The Iraqi Journal of Agricultural Science
Article 1, Volume 43, Issue 4, 2013, Pages 28-40
Authors
Saad F. Hassan; Dalia S. Hassan; Layla I. Mohammed; Akeel Y. Hadi; Sadek K. Homadi; Ali N. Khadim
Abstract
An experimental field was conducted at Al-Meshkhab Rice Research Station at Najaf governorate during 2008-2009 seasons to evaluate of oxadiargyl herbicide to control weeds and its effect on growth, yield and yield components for Anber 33 rice cultivar. Seeds were grown by dry seeding method at 20 June at each season. The treatments included: applied oxadiargyl in 150 cm3.ha-1 after 8 days of sowing (T1), 300 cm3.ha-1 (T2), 150 cm3.ha-1+10 liter.ha-1propanil after 14 days from sowing (T3), 300 cm3.ha-1 + 10 liter.ha-1 of propanil (T4), propanil of 10 liter.ha-1 at 14 days of sowing (T5) and check treatment (without control) (T6).A RCBD with three replications was used. Results showed the distribution of narrow leaf weeds. Herbicide treatments showed reduction in numbers of weeds especiallyEchinocholoa crus-galli L. andCyperusodoratus L., and decreased weed dry weight from 131.34 to 9.55 and from 149.67 to 11.19 g in both seasons, respectively. Oxadiargyl at 300 cm3.ha-1 attained significant increment in plant height (143.33 and 145.67 cm), number of panicle.m-2 (462.33 and 393.67), panicle length (27.5 and 32.4 cm), number of filled grain/panicle (166.4 and 172.9), weight of 1000 grains (21.5 and 22.2 g) and paddy yield (5.54 and 5.96 t.ha-1) for both seasons respectively. However this treatment led to reduction of sterility percentage. It can be concluded and recommend to use of oxadiargyl herbicide alone (300cm3.ha-1) or mixed (150 cm3.ha-1) with propanil (10 liters.ha-1) to control of weeds in rice fields in Iraq.

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