Saved Bookmarks
| 1. |
Chemical compounds added to the soil for increasing soil fertility. |
| Answer» DETAILED lists of these elements vary slightly but most sources identify three ESSENTIAL, non-mineral elements: carbon, oxygen and hydrogen; SIX major or macro-nutrients: nitrogen, phosphorous, potassium, sulphur, calcium and magnesium; and a RANGE of micronutrients which include, molybdenum, COPPER, boron, manganese | |