For Manure: Nitrogen ≈ 95.04%, Phosphorus ≈ 90.48%, Potassium ≈ 91.19%. These nutrients often require microbial decomposition for release into plant-available forms, resulting in slower uptake and higher residual levels in the soil after harvest. Solubility and Leaching may also contribute to the residual nutrients present after harvest because NPK fertilizers are often highly soluble, which means they dissolve readily in water and are prone to leaching. While this may lead to more efficient nutrient uptake by plants, it can also result in greater nutrient losses through leaching beyond the root zone. On the other hand, nutrients in Fertilizer C and manure may be less soluble or bound within organic matter, making them less susceptible to leaching. Consequently, a portion of these nutrients may remain in the soil after harvest, contributing to higher residual levels. Plants may exhibit varying degrees of efficiency in nutrient uptake depending on factors such as crop type, stage of growth, and environmental conditions. NPK fertilizers, being formulated with balanced nutrient ratios, promote optimal plant growth and development, leading to efficient nutrient uptake and utilization. In contrast, Fertilizer C and manure may provide nutrients in ratios or forms that are not precisely matched to the crop's requirements, potentially resulting in lower uptake efficiency and higher residual levels in the soil. Manure, being an organic fertilizer, relies on microbial decomposition for the release of nutrients into plant-available forms.