Prospek Dan Tantangan Pengembangan Biofertilizer Untuk Perbaikan Kesuburan Tanah

. As mega-biodiversity country, Indonesia should empower soil biological resources to improve soil tillage efficiency and sustainable crop production. The empowerment can be done by the enrichment of the soil with species and population of soil organisms through the application of biofertilizer in the form of a single organism or consortia. In line wih the heterogeneity of agricultural land, the development of biofertilizer production should be done taking into account the presence of specific functional native organisms that have been exist in the field. The selection of consortia biofertilizer formulation is the functional types of organisms that have a high compatibility and kinds of carriers that is able to maintain its functional value. In addition to having the ability to increase the availability of N, P and K, the functional microbes should have the ability to provide essential micronutrients to support of quantity and quality production. Challenges in biofertilizer application are the determination of criteria for C-organic content, nitrogenase and soil phosphatase enzymes. This determination needs to be made as a reference to the making of “soil biotest kit" so that it is effective and valuable in the implementation