The study is intended to study the effect of nitrogen fertilizer on the growth of pepper. By studying the function of nitrogen to the chili. Nitrogen is a nutrient that is vital to the growth of peppers is tremendous. If the chili gets less nitrogen is not enough to meet demand. Or if it is excessive demand of pepper. Chili may result in the growth of incomplete or wrong, as if pepper get too much nitrogen can cause the chili is easily broken down. And have a branch too much nitrogen, etc., and if it gets too low, it makes it the pepper is growing slowly. And trunk dwarfism, etc. The effect of nitrogen on the growth of pepper. Nitrogen is found to affect the growth of pepper both sides height. Canopy width Colors and fruits of pepper The chili was much nitrogen will make the color more intense than that of chili pepper fruits that are not nitrogen. And the size of the peppers is a small increase. And if it is less nitrogen will make the chili lack chlorophyll. The cause yellow leaves.