Biological control using entomopathogenic bacteria Bacillus thuringiensis is in increasing demand because of its specific target toxicity, safe for natural enemies as well as pollinating insects. Propagation media for B. thuringiensis greatly determines the success of spores number produced and toxicity level to insect pests. This study aimed to record the spore density of indigenous isolates of South Sumatera propagated in bio-urine and 5% molasses media and their toxicity level against termites Coptotermes curvignathus and armyworm Spodoptera litura. The research was conducted at Biological Control Laboratory, Plant Protection Study Program, Faculty of Agriculture, UNSRI, from March to June 2019. The study was designed with Factorial Completely Randomized Design, using isolates as many as 3 isolates with 3 media treatments (bio-urine, bio-urine + 5% molasses, and Nutrient Broth) and 5 replications. The bio-assay used worker caste termites and 3rd instar armyworms. The results showed that a mixture of bio-urine and 5% molasses produced higher number of spores compared to bio-urine media only. The use of NB as a control showed higher spore production compared to the 2 other treatments. The mortality rate of Coptotermes termite was higher than the mortality rate of armyworms. Death symptoms of insect pests were indicated by the presence of wet rot and color change (blackish).

Abstract.This study aims to determine the quality of compost from a combination of water hyacinth (Eichornia crassipes Mart. Solm) and Goat Manure. The materials used in the research were goat manure, water hyacinth, and bioactivators. This study used a completely randomized design with 5 treatments and 5 replications consisting of treatment P1 = water hyacinth: goat manure (100%: 0%), P2 = water hyacinth: goat manure (75%: 25%), P3 = water hyacinth: goat manure (50%: 50%), P4 = water hyacinth: goat manure (25%: 75%), P5 = water hyacinth: goat manure (0%: 100%). The parameters measured in the study were physical quality (smell, moisture content, temperature, particle size and color) and pH. From the research results obtained showed that the best ratio of water hyacinth and goat manure was 50 % : 50 % in all parameters, both physical properties and pH is in accordance with SNI 19-7030-2004.

This study aims to improve soil quality, so that the soil used can be maintained against theavailability of soil nutrients. Efforts are made to apply fertilizers that are in accordance withthe needs of plants and in a balanced manner. Organic fertilizer is one of the efforts toimprove the physical and chemical properties of the soil, so that it is expected to increase thegrowth and production of plants to be applied. Liquid organic fertilizer has many advantages, namely the ease of application to soil and plants, all you need to do is water it. The rawmaterial forliquid organic fertilizer from goat biourin is goat urine, while the decomposersare banana hump, feces and EM4. This researchwas conducted in a greenhouse, was carried out for 4 months, Departmet of Soil and Laboratory of Chemistry, Biology and Soil Fertility, Department of Soil, Faculty of Agriculture, Sriwijaya University. The study using acompletely randomized design with 4 treatments and 3 replications. The treatment consistedof the ratio of biourin to water, namely: A (control), B (l:l), C (1:2), and D (1:3). Parametersobserved and measured in this study were C/N Ratio, Total N, and soil pH. Based on theresults of the study, it was concluded that the type and dosage of goat Biourin liquid fertilizer could increase soil pH, N-total and C/Nratio.