Mineral-enriched Animal Waste as Solid Organic Fertilizer

Abstract

Organic fertilizer has complete nutrient content and various organic compounds that are needed by the plants. However, organic fertilizer is hard to be decomposed, so that it needs quite a long time in providing nutrient for the plant compared to the inorganic/chemical fertilizer. The alternative solution is by making solid organic fertilizer formulation which is enriched by several mineral materials. The purpose of this research is to characterize solid organic fertilizer which is enriched by several mineral materials. The research was conducted in the Soil Laboratory of Agriculture Faculty, University of Jember from May to July 2018. We used laboratory analysis of several organic fertilizer samples that were enriched with mineral materials, and results were compared with the Indonesian Organic Fertilizer Standard of 2011, which is called SNI-2011.The result of the research showed that solid organic fertilizer based on animal manureenriched with several mineral materials had the character that was comparable with SNI-2011, except for moisture content that was still higher than the standard. The solid organic fertilizer also has macronutrient content available (N, P, and K) higher than non-enriched organic fertilizer.