Herbicide evaluation in the hoe‐farming system cotton production in Northern Nigeria
| Autor: | K. O. Adejonwo, A. O. Ogungbile, S.T.O. Lagoke, A. H. Choudhary |
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| Rok vydání: | 1992 |
| Předmět: |
biology
Digitaria Sowing engineering.material Cynodon dactylon biology.organism_classification Fiber crop chemistry.chemical_compound Hoe-farming Agronomy chemistry Insect Science Glyphosate engineering General Earth and Planetary Sciences Weed Agronomy and Crop Science Malvaceae General Environmental Science |
| Zdroj: | Tropical Pest Management. 38:286-294 |
| ISSN: | 0143-6147 |
| DOI: | 10.1080/09670879209371710 |
| Popis: | Trials conducted over 6 years in rainfed hoe‐farming system cotton (Gossypium hirsutum L.) production at Samaru, northern Nigeria, showed that pre‐plant application of glyphosate at 0.75–1.0 kg a.e./ha without further land preparation was a suitable substitute for the labour‐intensive traditional method involving ridge‐splitting. Glyphosate was particularly effective when established perennial weeds such as Cynodon dactylon (L.) Pers. and Digitaria cilliaris (Retz) Koel were predominant. Following pre‐plant glyphosate there was no further need for a grass weed herbicide as a pre‐emergence treatment. Paraquat, fluazifop‐butyl, haloxyflop and amitrole were not as effective in pre‐plant use. After pre‐plant glyphosate, diuron alone at 0.8–1.2 kg a.i./ha was adequate as a pre‐emergence treatment with one supplementary hoe‐weeding at 6 weeks after sowing (w.a.s.). A supplementary application of glyphosate was not significantly different from a hoe‐weeding at 6 w.a.s. in most situations examined. In on... |
| Databáze: | OpenAIRE |
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