The rising need to produce food while the soil fertility is decreasing calls for proper management practices regarding nutrients. While conventional fertilizers are important for increased yield in crop plants, these have poor nutrient-use efficiency, nutrient imbalance and cause environmental degradation. Customized fertilizers are now available as a solution that offers nutrients depending on soil composition and crop needs. This type of fertilizer incorporates macro-nutrients, secondary nutrients and micro-nutrients in appropriate amounts to increase the efficiency of nutrients. Customized fertilizers are important for precision agriculture and reduce the risks of nutrient leaching and emission of greenhouse gases. This paper explains the idea of customized fertilizers along with their significance, manufacture, application and benefits.