ALLELOPATHIC EFFECT OF WHEAT RESIDUES ON MUNG BEAN AND COMPANION WEEDS

A. Albehadili, A.; S. Alsaadawi, I.; K. Shaty, R.

	ALLELOPATHIC EFFECT OF WHEAT RESIDUES ON MUNG BEAN AND COMPANION WEEDS
IRAQ JOURNAL OF AGRICULTURE
Article 1, Volume 21, Issue 1, 2016, Pages 0-0
Authors
A. A. Albehadili; I. S. Alsaadawi; R. K. Shaty
Abstract
The field experiment was conducted at the Research Farm of Department of Biology, College of Science, and Baghdad University using Randomized Complete Block Design with four replications as factorial experment. Wheat cultivars straw and lower rates (30% and 60% of the label rate) were incorporated in the field soil alone or in combination. Label rate herbicide (2.4 Lha-1) and weed free with and without straw were also included for comparison. Results showed that weeds density and dry weight were significantly increased by wheat residues and lower rates of herbicide, however this reduction was further increased in plots received wheat residues and lower rates of herbicide. The highest suppression of weed density was achieved by application of reduced rate of trifluralin (60%) to plots amended with Abu-Graib 3 residue (82, 78% of control) and with Iraq residue (80 ,79% of control) at 30 and 60 days after sowing, respectively. Also, reduced rate of trifluralin (60%) integrated with Abu-Graib 3 and Iraq cultivars residues recorded maximum inhibition in dry weight of weeds by 77 and 70% over control respectively, while label rate of trifluralin reduced dry weight weeds by 48% of control. It was concluded from this study the combination of Trifluralin herbicide by 60% from label rate incorporated with wheat residues suppress the weed populations.

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