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Research Article |

Optimal Combination of Organic and Inorganic Fertilizers for Maize Yield in the Forest Savannah Transition Zone of Ghana

Experiments were conducted on Chromic Luvisol (Wenchi) and Ferric Lixisol (Mampong) to evaluate the effect of site-specific inorganic fertilizer rates and its integration with poultry manure on nutrient uptake, biomass and maize yield in the transition zone of Ghana. The experiment consisted of sixteen (16) fertilizer combinations (N0P0K0, N30, N60, N90, N120, N0P10K20, N30P10K20, N90P10K120, N120P10K20, N60P10, N60P0P0P0P600, N60P0P0P0P60P P10K60 and N60P10K20 PM (2.5 t/ha) two maize genotypes: Obatampa (Open pollinated cultivar) and Mamaba (hybrid maize). Treatments were carried out in a randomized complete block design with three replications. Nutrient intake data were collected at 34 and 54 days after sowing (DAS), in maize at 34 DAS, uptake of N, P and K was significantly increased by N, P and K in fertilization, indicating an increased availability of these nutrients in the soil. All treatments were significantly higher than the control in terms of nutrient intake at 54 DAS. The main season yield of Mamaba maize variety was highest (4950 kg/ha) with N60P10K20 PM (2.5 t/ha) compared to other treatments. However, Obatanpa maize cultivar N60P10K20 with PM (2.5 t/ha) produced the highest yield compared to other treatments. Maize yields in both Mamaba and Obatanpa were significantly reduced during the short growing season due to low rainfall and planting time. In comparison, the hybrid maize (Mamaba) gave the highest yield in fertilizer than the open pollinator genotype (Obatampa). This indicates that more NPK fertilizer than open pollination is not required to show the potential yield of hybrid corn. Also, the combined application of site-specific fertilizer and organic fertilizer improved the yield of hybrid corn compared to inorganic fertilizer alone.

Maize, Genotypes, Fertilizers, Nutrient Uptake, Grain Yield

APA Style

Onawumi, O. A., Tetteh, F. M., Langui, J. C. N., Selele, K. S., Ave-Ampi-Obima, J. (2024). Optimal Combination of Organic and Inorganic Fertilizers for Maize Yield in the Forest Savannah Transition Zone of Ghana. International Journal of Applied Agricultural Sciences, 10(1), 7-15.

ACS Style

Onawumi, O. A.; Tetteh, F. M.; Langui, J. C. N.; Selele, K. S.; Ave-Ampi-Obima, J. Optimal Combination of Organic and Inorganic Fertilizers for Maize Yield in the Forest Savannah Transition Zone of Ghana. Int. J. Appl. Agric. Sci. 2024, 10(1), 7-15. doi: 10.11648/j.ijaas.20241001.12

AMA Style

Onawumi OA, Tetteh FM, Langui JCN, Selele KS, Ave-Ampi-Obima J. Optimal Combination of Organic and Inorganic Fertilizers for Maize Yield in the Forest Savannah Transition Zone of Ghana. Int J Appl Agric Sci. 2024;10(1):7-15. doi: 10.11648/j.ijaas.20241001.12

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