THE EFFECT OF SIDOARJO’S MUD SOIL WITH ORGANIC MATERIALS TOWARD THE GROWTH OF ALBIZIAN (SAMANEA SAMAN MERR)

Sidoarjo’s mud soil is a type of soils formed from the mud came out at the former oil drilling of Lapindo Brantas Limited Company.Albizian (Samanea saman Merr) is a type of plant that is often developed for environmental management. This research’s objective is to investigate the effect of Sidoarjo’s mud soil toward the growth of albizian. Sidoarjo’s mud soil was dried, pulverized and sieved with a sieve with size of 2 mm then analyzed for characteristics. The sample of the Sidoarjo’s mud soil was mixed with rice husks, compost and cow manure then incubated for 5 weeks. A hundred grams samples were analyzed for chemical, physical and biological characteristics. The albizian seeds on age 2 weeks were planted on media in the polybag. The results of the research showed that the treatment of M2 produced the best growth of albizian compared to other treatments. The growth of albizian on M2 treatment produced the plant height of 29.3cm, stem diameter of 0.48cm, leaves number of 15.8cm, root length of 19.0cm,root dry weight of 1.3g and stem+leaves dry weight of 4.2g. This research concluded that the best growth of the albizian in treatment of M2