(EFFECTIVENESS OF SULPHATE (CAS) MIXTURE ACID CONSTRATION AND GROWTH PLANNING TO PINE RENDEMEN IN PINEAPPLE IN RPH PUNTEN BKPH PUJON)

Pine plants have an important role, because in addition to being a pioneer plant, the specialty of the pine tree is that it produces the sap which is further processed and has high economic value. The further processed sap produces gondorukem and turpentine used in the batik, plastic, soap, printing ink, plitur, and some paint solvent industries. However, the production of gondorukem for industrial needs in Indonesia is still lacking, so to meet those needs it is necessary to increase the production of pine resin. The study was located in the pine forest of Coban Talun RPH Punten BKPH Pujon. The study was conducted in December 2018 to February 2019. How was the effect of sulfuric acid stimulants given to pine trees with concentrations of 0, 2.5, 5, and 7.5%. The aim of this study was to determine the effectiveness of CAS concentrations and growing heights in the rendement of pine sap in RPH Punten BKPH Pujon. The research method was carried out with RAK (Randomized Group Design) consisting of 2 factors. Factor 1, Provision of CAS concentrations used are: 0%, 2.5%, 5%, and 7.5%. Factor 2, the height of the growing area used were: 1200mdpl, 1250mdpl, 1300mdpl, each repeated 3 times, each experimental unit contained 5 pinaus trees. The parameters studied were the amount of pine tree sap and the quality of pine tree sap produced. The results of the study showed that there was no interaction between the administration of sulfuric acid (H2SO4) concentration and the height of the place to grow to the results of quality quality sap A. The results showed an interaction between the administration of solution concentration sulfuric acid (H2SO4) and the height of the place to grow against the results of the sap at the collection of 2, 3, 4 quality quality B. In the treatment of sulfuric acid concentration (S) which produces the most sap is CAS 7.5% (S4) at the first harvest produces the quality A sap which tends to be the highest is 97.7 grams / tree / day and in the treatment of growing altitude (T) Statistically there is a tendency to produce the most latex production is T2 (1250 masl height) in the second harvester which is 129.4 gram / tree / day. The highest quality weights of B S4T1 quality (concentration of sulfuric acid 7.5% with a height of 1200 meters above sea level) which is 9.10 grams / tree / day on the first harvest.