Analisis Kualitas Larutan Mikroorganisme Lokal Daun Gamal (Gliricidia sepium) pada Beberapa Waktu Inkubasi

ABSTRACT Analysis of Local Microorganism Leaf Gamal (Gliricidia Sepium) Solution Quality on the Fermentation Period. The study aims to determine the quality of local microorganism solution under the influence of concentration leaves of Gliricidia (Gliricidia sepium) and fermentation period. This research was conducted at the Soil Laboratory, Faculty of Agriculture, UdayanaUniversity. The design of this research used a randomized block design factorial pattern of two factors. The first factor was the concentration of Gliricidia leaves consisted of 0, 100, 300 g, and the second factor was the fermentation period, consists of 1,2, and 3 weeks. Results of statistical analysis showed a highly significant interaction between the concentration factor and fermentation period of Gliricidia leaves the parameters observed. Concentration of 30% (300 g) Gliricidia leaves with a two-week fermentation period has the best effect on the quality of the biological properties of microorganisms local solution with a total population of bacteria (9.5 x 107 SPK mL-1) and total fungus (1.9 x 106 SPK mL-1), while the best quality chemical properties of the solution of local microorganisms present in a concentration of 30% (300 g) gliricidia leaves with a three-week fermentation period with the content of total-N (1.59%), pH (6.03), and organic-C (3.35%). Concentration of 30% (300 g) Gliricidia leaves with fermentation period of two weeks, it can be used as a biological fertilizer and a concentration of 30% (300 g) Gliricidia leaves with a three-week fermentation period, could be used as organic manure. Keywords: local microorganisms, Gliricidia leaves, fermentation period