Field experiments to investigate the effect of different sources of organic manure (Cow, Sheep and Poultry Manure) on growth and yield of okra was carried out at the Teaching and Research Fadama Farm of Usmanu Danfodiyo University Sokoto, Nigeria during 2007/2008 and 2008/2009 dry seasons. Treatments were laid out in a randomized complete block design (RCBD) with three replications. Data were collected on growth and yield parameters (Plant height, number of leaves per plant, pod length and fresh pod weight). Results obtained indicated that growth and yield of okra was lowest in control treatments which showed that the organic manures used in the study especially poultry manure positively influenced the performance and yield of okra. Poultry manure positively increased okra plant height by 39.4% and number of leaves by 37.8% compared to control treatments. There was no significant effect with respect to number of leaves in 2007/2008. Fresh pod weight was significantly increased by 34.6% with poultry manure compared to control treatments. However, pod length was not significantly affected by the treatments. Based on the findings of the experiments it could be deduced that poultry manure seems to promote higher growth and yield of okra. Thus, it should be recommended for farmers growing okra in this zone.
Key words: Okra, Growth, Yield, Source, Organic Manure
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