Impact of Poultry Manure and Npk Fertilizer Application Rates on the Growth and Yield of Okra

The research was carried out at agricultural and bio-environmental engineering department of Samaru College of Agriculture, Division of Agricultural Colleges, and Zaria. (11°11° N and longitude of 0°33°E in northern guinea Savannah ecological zone). . The climate of the study area is described as dry; sub-humid with severe deficit of rainfall from October to May and a surplus from June to September with an annual rainfall of 1000 mm. It experiences a cool dry harmattan season between November and April. The objective of the work was to determine the growth of Okra, to determine the yield of Okra, and to compare the growth and yield impact of okra. The work presents the impact of poultry manure and rates of NPK fertilizer on plant height and number of leaves per plant of okra. Application of poultry manure had significant effect on plant height and number of leaves per plant at all the sampling period except at 2 WAP where number of leaves per plant was not significant at the rates of application. Application of NPK 15:15:15 fertilizer was not significant at on plant height and number of leaves per plant respectively. However, 4 WAP produced significantly taller plants than the control: The shorter plant height and lowest number of leaves were obtained of the control treatment for all the sampling periods on both application of poultry manure and NPK fertilizer. The interaction between poultry manure and NPK 15:15:15 fertilizer was not significant on plant height and No. of leaves per plant of okra. The fresh fruit from each treatment was harvested in portions the average of each treatment was calculated to access the overall field performance the average weight of the fruit for okra was found to be 18g for (T1) sample, for T2 it way found to be 22g and for that of T3 sample was found to be 15g. Statistically there is no significant difference among T1 and T2 treatments while there is significantly higher yield than control treatment statistically T1 and T2 treatment are similar to each other and significantly difference from T3 treatments, conclusively from the research carried out it can be concluded that the application of organic sources of fertilizer can enhanced the growth and yield of okra. Farmers with less fertile soft can enhance their yield using poultry manure on okra production as it is cheap and easily assessable. Finally we hereby recommend that the farmers that wish to go for okra production should use poultry manure because its easily accessible and cheap, also it enhance more yield than the other treatments through the observant.