Evaluation of commercially available herbicides for weed control in cassava
A trial was conducted in 2008/09 at Chitedze (31o 59' S; 33o 38' E) and Chitala (13o 40' S; 34o 15' E) Research stations in Malawi to evaluate commercially available pre-emergent herbicides for weed control in cassava (Manihot esculenta Crantz). Four herbicides, Bullet (chloroacetanilide, dimethanam...
| Autores principales: | , , , , , |
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| Formato: | Conference Proceedings |
| Lenguaje: | Inglés |
| Publicado: |
International Association of Hydrological Sciences
2012
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/81486 |
| _version_ | 1855531318677340160 |
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| author | Moyo, C.C. Jumbo, S. Mahungu, N.M. Benesi, I.R.M. Ntawuruhunga, Pheneas Sandifolo, V.S. |
| author_browse | Benesi, I.R.M. Jumbo, S. Mahungu, N.M. Moyo, C.C. Ntawuruhunga, Pheneas Sandifolo, V.S. |
| author_facet | Moyo, C.C. Jumbo, S. Mahungu, N.M. Benesi, I.R.M. Ntawuruhunga, Pheneas Sandifolo, V.S. |
| author_sort | Moyo, C.C. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | A trial was conducted in 2008/09 at Chitedze (31o 59' S; 33o 38' E) and Chitala (13o 40' S; 34o 15' E) Research stations in Malawi to evaluate commercially available pre-emergent herbicides for weed control in cassava (Manihot esculenta Crantz). Four herbicides, Bullet (chloroacetanilide, dimethanamid, triazine), Harness 90 EC (chloroacetanilide), Codal Gold 412-5 EC
(prometryn and S-metolachlor) and Metalachlor 960 EC (S-metolachlor; acetamide), were evaluated with and without follow up hand-hoe weeding (check). Panicum maximum, Elusine indica, Rottboellia chochinchinensis and Setaria pumila were the common narrow-leaved weeds while Commelina benghalensis, Bidens pilosa, Nicandra physalodes and Acanthospermum
hispidum were the common broad leaved weeds. Herbicide application did not affect crop establishment but significantly (P<0.001) reduced early weed growth by 74.8 to 91.2 % at Chitedze and 53.7 to 97.9 % at Chitala. Bullet was more effective in early weed control (2.8 weeds m-2 at Chitedze and 0.0 weeds m-2 at Chitala) than the other herbicides (38.7 weeds m-2 at Chitedze and 8.8 weeds m-2 at Chitala) and resulted in root yields (12.3 t ha-1 at Chitedze and 18.4 t ha-1 at Chitala) and returns (MK238,844.00 ha-1 at Chitedze and MK360,779.00 ha-1 at Chitala) comparable to or higher than hand weeding (root yield of 10.6 t ha-1 at Chitedze and 16.3 t ha-1 at Chitala and returns of MK2 0 1 , 4 3 8 . 0 0 h a - 1 a t Ch i t e d z e a n d
MK310,448.00 ha-1 at Chitala) and other treatments (root yield of 2.2-13.1 t ha-1 at Chitedze and 1.3-23.6 t ha-1 at Chitala and returns of MK44,000.00 to MK249,078 at Chitedze and MK26,000.00 to MK465,100 ha-1 at Chitala), making it a potential alternative to hand hoe weeding in cassava. |
| format | Conference Proceedings |
| id | CGSpace81486 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2012 |
| publishDateRange | 2012 |
| publishDateSort | 2012 |
| publisher | International Association of Hydrological Sciences |
| publisherStr | International Association of Hydrological Sciences |
| record_format | dspace |
| spelling | CGSpace814862023-06-08T19:45:01Z Evaluation of commercially available herbicides for weed control in cassava Moyo, C.C. Jumbo, S. Mahungu, N.M. Benesi, I.R.M. Ntawuruhunga, Pheneas Sandifolo, V.S. cassava herbicides plant growth malawi weeding methods weed control A trial was conducted in 2008/09 at Chitedze (31o 59' S; 33o 38' E) and Chitala (13o 40' S; 34o 15' E) Research stations in Malawi to evaluate commercially available pre-emergent herbicides for weed control in cassava (Manihot esculenta Crantz). Four herbicides, Bullet (chloroacetanilide, dimethanamid, triazine), Harness 90 EC (chloroacetanilide), Codal Gold 412-5 EC (prometryn and S-metolachlor) and Metalachlor 960 EC (S-metolachlor; acetamide), were evaluated with and without follow up hand-hoe weeding (check). Panicum maximum, Elusine indica, Rottboellia chochinchinensis and Setaria pumila were the common narrow-leaved weeds while Commelina benghalensis, Bidens pilosa, Nicandra physalodes and Acanthospermum hispidum were the common broad leaved weeds. Herbicide application did not affect crop establishment but significantly (P<0.001) reduced early weed growth by 74.8 to 91.2 % at Chitedze and 53.7 to 97.9 % at Chitala. Bullet was more effective in early weed control (2.8 weeds m-2 at Chitedze and 0.0 weeds m-2 at Chitala) than the other herbicides (38.7 weeds m-2 at Chitedze and 8.8 weeds m-2 at Chitala) and resulted in root yields (12.3 t ha-1 at Chitedze and 18.4 t ha-1 at Chitala) and returns (MK238,844.00 ha-1 at Chitedze and MK360,779.00 ha-1 at Chitala) comparable to or higher than hand weeding (root yield of 10.6 t ha-1 at Chitedze and 16.3 t ha-1 at Chitala and returns of MK2 0 1 , 4 3 8 . 0 0 h a - 1 a t Ch i t e d z e a n d MK310,448.00 ha-1 at Chitala) and other treatments (root yield of 2.2-13.1 t ha-1 at Chitedze and 1.3-23.6 t ha-1 at Chitala and returns of MK44,000.00 to MK249,078 at Chitedze and MK26,000.00 to MK465,100 ha-1 at Chitala), making it a potential alternative to hand hoe weeding in cassava. 2012-02 2017-06-08T08:38:39Z 2017-06-08T08:38:39Z Conference Proceedings https://hdl.handle.net/10568/81486 en Limited Access International Association of Hydrological Sciences Moyo, C.C., Jumbo, S., Mahungu, N.M., Benesi, I.R.M., Ntawuruhungu, P. & Sandifolo, V.S. (2012). Evaluation of commercially available herbicides for weed control in cassava. In: Proceedings of the 11th triennial Symposium of the International Association of Hydrological Sciences held at Memling Hotel: Tropical roots and tuber crops and the challenges of globalization and climate changes, (pp.269-275), Kinshasa, 4-8 October. Ibadan: ISTRC-AB. |
| spellingShingle | cassava herbicides plant growth malawi weeding methods weed control Moyo, C.C. Jumbo, S. Mahungu, N.M. Benesi, I.R.M. Ntawuruhunga, Pheneas Sandifolo, V.S. Evaluation of commercially available herbicides for weed control in cassava |
| title | Evaluation of commercially available herbicides for weed control in cassava |
| title_full | Evaluation of commercially available herbicides for weed control in cassava |
| title_fullStr | Evaluation of commercially available herbicides for weed control in cassava |
| title_full_unstemmed | Evaluation of commercially available herbicides for weed control in cassava |
| title_short | Evaluation of commercially available herbicides for weed control in cassava |
| title_sort | evaluation of commercially available herbicides for weed control in cassava |
| topic | cassava herbicides plant growth malawi weeding methods weed control |
| url | https://hdl.handle.net/10568/81486 |
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