THE EFFECT OF CORRECT FERTILIZATION AND THE POSITIVE ROLE OF ORGANIC MATTER IN SOIL IS QUITE PROMINENT IN YIELD INCREASE AND QUALITY IMPROVEMENT OF PISTACHIO. THIS RESEARCH HAS BEEN DESIGNED IN FACTORIAL PLOTS BASED ON RANDOMIZED COMPLETE BLOCK DESIGN (RCBD) IN 3 REPLICATIONS TO INCREASE THE YIELD AND IMPROVE QUALITY COMPONENTS OF PISTACHIO CULTIVAR AKABARI IN DAMGHAN. THE FACTORIAL ASPECT CONSISTS OF THE CULTIVAR, AKBARI, AND 2 LEVELS OF FERTILIZER APPLICATIONS - CONTROL AND TREATMENT (WITH THE FERTILIZERS OF BAZARGAN KALA COMPANY). THE TIME, QUANTITY AND TYPE OF FERTILIZERS ARE SHOWN IN TABLE 3. THE RESULTS SHOW THAT IN TREATMENTS, FRUIT SETTING, NUMBER OF FRUITS, YIELD PER TREE AND YIELD PER HECTARE HAVE SIGNIFICANTLY IMPROVED IN COMPARISON TO CONTROLS. THE NO. OF NUT PER CLUSTER HAS IMPROVED 54% TO CONTROLS AND YIELD PER TREE AND YIELD PER HECTARE HAVE IMPROVED %64 AND %62 RESPECTIVELY. BESIDES, THE QUALITY COMPONENTS HAVE IMPROVED, NAMELY, PISTACHIO OPENNESS BY % 10.90, FAILURE OF PISTACHIO DEVELOPMENTS DROPPED BY % 20.82. OUNCE BY CONSIDERING THE PRICE OF AKBARI CULTIVAR AT THE TIME (OUNCE 22), 32,000 TOMANS, ACHIEVING 1524.8 KG INCREASE RESULTS IN THE GROSS INCOME INCREASE OF 48.800 MILLION TOMANS. BY REDUCING THE COST OF NEW FERTILIZATION (8.5 MILLION TOMANS), THE NET BENEFIT INCREASE IS CALCULATED AT 40.300 MILLION TOMANS (IN THE BEST MANAGEMENT AND SITUATION). HOWEVER, CONSIDERING THAT IN OTHER LESS INTENSIVE MANAGERIAL SITUATION, ONLY % 50 OF THE OUTCOME IS FULFILLED, THE PRODUCTION INCREASE IS ESTIMATED AT 762.4 KG AND THE NET PROFIT WOULD BE AROUND 16 MILLION TOMANS.