Keragaman Sifat- Sifat Tanah Dalam Sistem Pertanian Organik Berkelanjutan

Organic materials have an important role in increasing the fertility of soil, both on the growth and yield of organic fertilizers or soil organic matter is a major source of soil nitrogen, its role is large enough to repair the physical, chemical and biological as well as environmental. Mulching good forage alley and manure can improve some physical properties of soil, among others, the lower the bulk density, increasing the total pore space and fast drainage pore further improve soil aeration, since it can bind to the primary granules into secondary granules. The function of organic fertilizer in the soil are dividedinto three groups, namely the function of physics, chemistry and biology. These three functions will affect the life of the plant to grow normally and produce optimally.Keywords ; The diversity of soil properties, organic farmin