Читать книгу Laboratory Methods for Soil Health Analysis, Volume 2 - Группа авторов - Страница 49

In addition to supporting biological control of crop pests and disease, SOM contributes to agricultural crop yields in various ways by overcoming negative soil conditions. Adequate amounts of SOM can enhance: (i) release of nutrients from decaying organic materials and thus reduce commercial fertilizer requirements; (ii) soil porosity which increases plant available water retention and aeration for root development; (iii) soil structure which reduces soil erosion potential and increases aggregation; and (iv) storage of other nutrients, including an increase in cation exchange sites for plant nutrient retention.