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    Evaluation of a new formulation of atrazine and metolachlor mixture for weed control in maize in Nigeria

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    S05ArtChikoyeEvaluationInthomNodev.pdf (300.4Kb)
    Date
    2005
    Author
    Chikoye, D.
    Udensi, U.
    Lum, A.
    Type
    Journal Article
    Metadata
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    Abstract/Description
    Field studies were conducted in 2002 and 2003 at Ibadan, Nigeria, to evaluate the effects on weed control in maize of a new formulation of a mixture of atrazine and metolachlor. The treatments were the new formulation of the mixture at doses from 1.0 to 4.0 kg a.i. ha–1 and the old formulation of the mixture at the recommended dose of 2.5 kg a.i. ha–1. The new formulation of the mixture gave complete control of Panicum maximum, Commelina benghalensis, sedges (Mariscus alternifolius, Kyllinga squamulata, and Cyperus spp.), and Tridax procumbens, and good control (>94%) of Passiflora foetida at 4 weeks after treatment (WAT) in 2002. At 8 WAT, the new mixture gave good control (>73%) of P. maximum and C. benghalensis in 2002, and of P. foetida, sedges, and T. procumbens in both years. The hoeweeded control and all herbicide treatments at 4 WAT had lower weed dry matter than the untreated control in both years, and at crop harvest in 2002. In both years, the lowest weed dry matter was obtained from the hoeweeded control at crop harvest. In 2003, the old formulation of the mixture at the recommended dose had similar weed dry matter with the new formulation at all doses. The treatments did not significantly affect maize grain yield in 2002. However, in 2003, the new formulation of the mixture at a dose of 4.0 kg a.i. ha–1 and the hoeweeded control had 33% higher maize grain yield than the untreated control. The new formulation of a mixture of atrazine and metolachlor is effective for weed control in maize at lower doses than the recommended dose of the old formulation.
    https://dx.doi.org/10.1016/j.cropro.2005.02.011
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/3366
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1016/j.cropro.2005.02.011
    IITA Subjects
    Weeds; Smallholder Farmers; Plant Health; Plant Production; Pests Of Plants; Plant Breeding; Livelihoods; Plant Diseases; Farm Management; Farming Systems
    Agrovoc Terms
    Grasses; Sedges; Weed Competition; Farmers; Herbicides; Metolachlor; Chemical Control; Broadleaf Weeds
    Regions
    Africa; West Africa
    Countries
    Nigeria
    Collections
    • Journal and Journal Articles4835
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