Browsing by Author "Amos Ngabirano"

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    Assessing the Effect of Organic Manure and Artificial Fertilizers on the Productivity of Irish Potato (Solanum Tuberosum) Growth and Yield as Well as Profitability
    (Uganda Christian University, 2025-09-09) Amos Ngabirano
    The study was to assess the effect of organic manure and artificial fertilizers on the Productivity of Irish potato growth and yield. It was guided by the following study objectives: to determine the effect of different applications of organic manure and artificial fertilizers productivity of Irish potato growth and yields, and to determine the most profitable application of organic manure and synthetic fertilizers in potato production. The experiment was conducted using a randomized complete block design (RCBD) with three treatments, each replicated two times. Plant height was recorded every 3 weeks starting from the third week after emergence. The number of shoots per plant was recorded at 10 weeks after emergence, and it also had a parameter to measure the growth rate. The number of tubers and the weight (yield) of tubers for a sample of three plants per plot were measured at maturity/harvest. ANOVA was used to compare the results of different treatments, conduct the variance analysis to identify relationships between variables, and use graphical representations like bar graphs to visualize the data. The findings revealed that applying organic manure and artificial fertilizers has a profound impact on both growth parameters measured— plant height and number of shoots. The findings revealed that as the rate of applying organic manure increases from Treatment 0 tons/ha to Treatment 5 tons/ha, the mean total weight of smaller-sized potato tubers generally tends to grow. The data points within each treatment group and the standard deviations also differ among the treatments, and applying more organic manure at greater rates could potentially increase the weight of smaller tubers. It was observed that there is variability in the weight of medium-sized potato tubers based on the application rates of organic manure. Treatments with higher application rates, such as Treatment of 10,15, and 20 tons/ha, showed an increase in the mean total weight, while treatments with lower application rates, like Treatment 5 tons/ha, exhibited a decrease in the mean total weight. The findings revealed that the mean total weight of potatoes varies across different application rates of organic manure. Treatments with higher application rates (10, 15, and 20) tones/ha generally showed higher mean total weights compared to lower application rates (0)tones/ha.However, treatment with organic manure shows a lower mean total weight compared to other treatments.