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OJVRTM
Online Journal of Veterinary Research©
Volume 22 (5):374-381, 2018.
Effect of Sorghum bicolor residue and trifluralin on weed growth in cowpea Vigna Sinensis legume.
Dr Ali Kareem Sarbout,
Dr Majid Hanoon Sharhan.
Department of Biology, College of Science, Wasit University, Kut, Iraq.
ABSTRACT
Sarbout AK, Sharhan
MH., Effect of Sorghum bicolor residue and trifluralin
on weed growth in cowpea Vigna Sinensis
legume, Onl J Vet Res., 22 (5):374-381, 2018. We report effect
of Sorghum bicolor Cv Enqatht residue (and trifluralin)
on emergence and growth of Beta vulgaris
L. Chenopodium album L., Amaranthus
retroflexus L., and Malva rotundifoloia L. weeds growing with Vigna Sinensis L. cowpea crop. Plot (250gm) soil
results suggested that the treatment significantly (P < 0.05) reduced weed density by
32.4 % and total dry biomass by 1.57gm over controls (4gm kg-1). There were
further reductions when 8gm/kg sorghum residue was added to soil plots. A
randomized complete block design (RCBD) was used to determine the effect of
800g M2 Sorghum bicolor on growth of Vigna Sinensis legume with weeds and treated with 1.2L or
2.4L h-1 Trifluralin. We compared those treatments
with untreated controls. In field experiments 800gm/Kg Sorghum bicolor residue reduced
weeds Beta vulgaris L. 38%, Chenopodium album L. 47.7%, Amaranthus retroflexus L. 24% and Malva rotundifoloia L.
10.67% . Respective biomass declined to 68, 63.7,
61.7, 22.33gm dry weed weight in Vigna Sinensis cowpea crop. When 50% more Trifluralin
was added to plots with Sorghum bicolor, the dry weight of Vigna Sinensis L., increased further. We find
that sorghum bicolor residue with 50% trifluralin
increased biological yield and harvest index of Vigna Sinensis L.
Key Words: Sorghum bicolor; Trifluralin herbicide; Vigna Sinensis L.
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