PENGARUH APLIKASI DOSIS EM4 (Effective Microorganism 4) TERHADAP RASIO C/N DAN TEKSTUR KOMPOS DARI KOTORAN KAMBING SEBAGAI SUMBER BELAJAR BIOLOGI SMP

Abstract

The purpose of this study are: (1) Knowing and analyzing the effect of EM4 dose on C / N compost ratio of goat dung composting. (2) To know and to analyze the effect of EM4 dose on C / N compost ratio of goat dung composting. (3) To know the dose of EM4 that can give the best effect to the C / N compost ratio of goat droppings. (4) To know the dose of EM4 which can give the best influence to the compost texture of goat manure (5) To find out how to arrange the results of this research as the design of biology learning source in Junior High School in the form of LKPD. In this study using research "True-Experimental Research" or experimental. The research was conducted in Margototo Village on December 21, 2015, C / N ratio and texture test was conducted at Polinela Analysis Laboratory of Bandar Lampung. The design used was Completely Randomized Design (RAL) consisting of 4 treatments (P0, P1, P2, P3) and each treatment was repeated 4 times (U1, U2, U3, U4), so that there were 16 experimental units. Data analysis techniques used were normality test, homogeneity test, hypothesis test and HSD tukey test and further test with BNJ test. Based on the results of data analysis and discussion it can be concluded as follows: (1) There is influence of EM4 dose variation on the decrease of C / N ratio of compost result of goat dung composting. (2) There is no effect of EM4 dose on texture on compost from goat dung composting. (3) At a dose of 10 cc can give the best effect to the change of C / N ratio. (4) No best EM4 dose of compost texture was found. (5) The results of this study can be used as biological learning resources on biotechnology materials in the form of LKPD