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Nitrogen is a very important nutrient as it is intimately involved in the process of photosynthesis and thus directly related to total dry matter production. An adequate supply of nitrogen can increase the yield by as much as 60%. Top dressing by split application of N is needed when the crop has a great need for N and when the rate of N uptake is large (Zobermann and Fairhurst, 2020). Crop-demand-based N application is one of the important options to reduce N loss and increase the N use efficiency of a crop (Barad et al., 2018). Need-based N application through leaf color chart and soil plant analysis development (SPAD) can be used for adjustment of fertilizer N application based on actual plant N status (Meena et al., 2020). Leaf color chart LCC and SPAD meter can be reliable, quite simple, and useful tools to assist farmers in decision-making regarding top-dress N application to crops at right time.