In recent times, the concept of integrated nutrient management (INM) system or integrated plant nutrient supply (IPNS) has been receiving increasing attention worldwide. The main principle of INM is to maximize the use of organic inputs while minimizing nutrient losses and to make supplementary use of chemical fertilizers. Good practices for INM often involve a combination of organic and inorganic sources of nutrients. Solanaceous vegetables (tomato, eggplant, hot and bell peppers) require large quantities of nutrients to yield well. The majority of the nutrients in fruits are absorbed after flowering occurs. Because vegetative and reproductive stages overlap in these crops and because the plants need nutrients even up to fruit ripening, fertigation, split application of fertilizers, slow-release N fertilizers and integrated use of inorganic and organic nutrient sources promote nutrient use efficiency and crop productivity.