Mwebembezi, Obed2024-12-302024-12-302024Mwebembezi, Obed (2024). A Comparative Analysis of the Effect of Inorganic Fertilizer (NPK) and Organic Fertilizer (Poultry Manure) on the Sweat Potato Yield. Kabale: Kabale University.http://hdl.handle.net/20.500.12493/2673This study investigated the comparative effects of inorganic NPK fertilizer and organic Poultry Manure on the yield and soil health of sweet potatoes grown in Kabale, Uganda. Utilizing a randomized complete block design (RCBD) with three treatments (NPK, Poultry Manure, and control), the research evaluated tuber yield, weight, and the impact of soil-living organisms across nine plots. Results indicated that NPK fertilizer significantly enhanced tuber yield and weight, with tubers averaging around 0.5 kg, but its effectiveness was highly dependent on adequate moisture to prevent pest susceptibility. Poultry Manure moderately improved yield and weight, with big tubers averaging 0.5 kg and small ones 0.3 kg, while significantly enhancing soil health and pest resistance, indicating its potential for sustainable crop production. The control plots, with no fertilization, yielded the least number of tubers, with weights ranging from 0.2 kg to 0.5 kg, highlighting the necessity of nutrient supplementation. The study concluded that integrating organic and inorganic fertilizers, along with proper irrigation, could optimize sweet potato production by ensuring high yields, maintaining soil health, and minimizing pest issues. These findings underscored the importance of a balanced fertilization strategy for sustainable agriculture in Kabale.enAttribution-NonCommercial-NoDerivs 3.0 United Stateshttp://creativecommons.org/licenses/by-nc-nd/3.0/us/A Comparative AnalysisEffectInorganic Fertilizer (NPK)Organic Fertilizer (Poultry Manure)Sweat Potato YieldThesis