Woodchip fertilizer is environmental friendly. It can be used in any type of soil. Becasue it release nutrients slowly for the plant without any microbial activity, heat or moiture. Through capillary phenomenon, nutrients are released to the soil solution from the woodchip. After the decompostion of woodchip, it adds organic matter to soil which is also the advantage of using this kind of fertilizer. Besides, waste wood material can be used successfully for making woodchip fertilizer.