In modern agriculture. the use of organic fertilizer becomes more popular because it  contains elements of natural nutrients such as N. P. K. Ca. Mg. which is needed by the soil  for  the growth of  a plant Organic fertilizers are derived  from the woste of untapped Acacia bark. To take the advantage of Acacia mangium bark waste a study of organic fertilizer is carried out in order to find out the best composition  of organic fertilizer  from the waste. The result showed that the best composition of organic fertilizers  based on elements of  fertilizer .treatment in the  market is the treatment of acacio wood with bran and goat manure (A3).
                        
                        
                        
                        
                            
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