Evaluation of a new formulation of atrazine and metolachlor mixture for weed control in maize in Nigeria
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 th...
| Autores principales: | , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Elsevier
2005
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/91884 |
| _version_ | 1855515228600532992 |
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| author | Chikoye, David Udensi, U.E. Lum, A. |
| author_browse | Chikoye, David Lum, A. Udensi, U.E. |
| author_facet | Chikoye, David Udensi, U.E. Lum, A. |
| author_sort | Chikoye, David |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| 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. |
| format | Journal Article |
| id | CGSpace91884 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2005 |
| publishDateRange | 2005 |
| publishDateSort | 2005 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace918842024-05-15T05:11:16Z Evaluation of a new formulation of atrazine and metolachlor mixture for weed control in maize in Nigeria Chikoye, David Udensi, U.E. Lum, A. grasses sedges weed competition farmers herbicides metolachlor chemical control broadleaf weeds 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. 2005-11 2018-03-23T06:48:57Z 2018-03-23T06:48:57Z Journal Article https://hdl.handle.net/10568/91884 en Limited Access Elsevier Chikoye, D., Udensi, U. & Lum, A. (2005). Evaluation of a new formulation of atrazine and metolachlor mixture for weed control in maize in Nigeria. Crop Protection, 24(11), 1016-1020. |
| spellingShingle | grasses sedges weed competition farmers herbicides metolachlor chemical control broadleaf weeds Chikoye, David Udensi, U.E. Lum, A. Evaluation of a new formulation of atrazine and metolachlor mixture for weed control in maize in Nigeria |
| title | Evaluation of a new formulation of atrazine and metolachlor mixture for weed control in maize in Nigeria |
| title_full | Evaluation of a new formulation of atrazine and metolachlor mixture for weed control in maize in Nigeria |
| title_fullStr | Evaluation of a new formulation of atrazine and metolachlor mixture for weed control in maize in Nigeria |
| title_full_unstemmed | Evaluation of a new formulation of atrazine and metolachlor mixture for weed control in maize in Nigeria |
| title_short | Evaluation of a new formulation of atrazine and metolachlor mixture for weed control in maize in Nigeria |
| title_sort | evaluation of a new formulation of atrazine and metolachlor mixture for weed control in maize in nigeria |
| topic | grasses sedges weed competition farmers herbicides metolachlor chemical control broadleaf weeds |
| url | https://hdl.handle.net/10568/91884 |
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