Utilization of urine and weed of Chromolaena odorata as a basic materials for liquid fertilizer

Abstract

In Indonesia, livestock urine is considered as waste, while weed of Choromolaena odorata, which are very toxic to ruminants is abundant in grassland area. These two materials have great potential to improve soil fertility because they can be made to organic fertilizer through fermentation. Fermentation of mixed urine, Chromolaena, and water with the proportion of 25:25:50% added with a small proportion of yeast tape, a liquid fertilizer produced with nutrient contents of N, P2O5, and K2O was 2.30, 0.32 and 0.15%, respectively. The research results showed that the application of liquid fertilizer significantly improved (P <0.01) the growth and biomass production of Panicum maximum, Brachiaria decumbens and Pennisetum purpureum whether Panicum maximum showed the best response.