African Ocean Chemistry (Earth Science) | 11 August 2009
Precision Fertilizer Application Enhances Maize Yield in Northern Zambia: An Intervention Study
S, h, i, k, o, n, g, o, C, h, i, l, u, f, y, a, ,, K, a, b, u, k, e, B, a, n, d, a, ,, M, w, e, n, d, a, C, h, i, y, a, w, a, ,, C, h, i, s, h, i, m, b, a, M, u, l, e, n, g, a
Abstract
Maize is a crucial staple crop in Northern Zambia, where nutrient deficiencies can significantly impact yields. A randomized controlled trial was conducted with two groups: control (no additional fertilizers) and intervention (precision-fertilized plots). Soil samples were analysed using spectroscopy to determine nutrient levels, and a linear regression model was used to predict yield based on fertilizer application data. Precision applications of nitrogen, phosphorus, and potassium increased maize yields by an average of 20% with minimal soil nutrient imbalances (mean ± SD: \(N=15\).2±3.8 kg/ha, \(P=16\).4±2.9 kg/ha, \(K=17\).3±3.5 kg/ha). The study demonstrated the feasibility and efficacy of precision fertilizer application in enhancing maize yields in Northern Zambia. Farmers should adopt these techniques to improve their crop productivity sustainably.