Onion (Allium cepa L.) Performance as Influenced by Manure and Fertilizer in Titanium Mined Soils

Mining is an important economic activity that promotes income generation, job creation, and industrialization globally. In spite its importance, it classified as land degradation form disrupts natural ecosystem through loss of biota soil health. Paucity information regarding the performance reclaimed mined soils in supporting crop production abound Kenya. To contribute to this knowledge gap, a study was conducted at Base titanium limited -Kwale investigate response bulb onions (red creole onion variety) farmyard manure inorganic fertilizer application on post soils. The experiment laid out Randomized Complete Block Design (RCBD) with three replicates Treatments included: fertilizer, manure, +farmyard control. Obtained data characterization, growth yield parameters subjected analysis variance (ANOVA) using R packages means separated Fisher’s protected least significant difference (LSD) (P≤0.05). Results showed had low TN, exchangeable P, K, S, Bo Cu levels. Manure+ significantly (P≤0.05) increased plant height by 38%, diameter 44%, neck thickness 19.5% total 89% marketable 88% compared A positive relationship between fertilizer+ height, number leaves, diameter, observed indicating + can support optimal these Further research however, required ascertain approaches promote sustainable development yield.