Bragantia (2007) 66, 101-110

Núbia Maria Correia, Julio Cezar Durigan and Wanderley José de Melo (2007)
Envelhecimento de resíduos vegetais sobre o solo e os reflexos na eficácia de herbicidas aplicados em pré-emergência
[Crop residues aging on soil and their effects on pre-emergence herbicides]
Bragantia 66 (1), 101-110
Abstract: An experiment was conducted from August to December 2004 under greenhouse conditions to evaluate the effects of aging residues of different plant species [coverage sorghum (Sorghum bicolor x S. sudanensis 'Cober Exp'), forage millet (Pennisetum americanum 'BN2'), finger millet (Eleusine coracana) and St. Lucia Grass (Brachiaria brizantha)], on the control of Ipomoea grandifolia using the pre-emergence herbicides diclosulam and imazaquin. Crop residues were subjected to chemical analyses. The efficiency of diclosulam was not affected by any of the residues. On the other hand, in association with residues of any of the species, but especially with St. Lucia Grass, this herbicide showed increased weed control efficiency. The control potential of imazaquin was influenced by forage millet and St Lucia Grass residues 90 days after laying residues on the soil. This behavior may be due to cellulose and lignin increase in both forage millet and St. Lucia Grass.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Portuguese)
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Database assignments for author(s): Núbia Maria Correia

Research topic(s) for pests/diseases/weeds:
environment - cropping system/rotation
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Ipomoea triloba (weed)