Fundamentals of Soil Science (1+1)

Exercise 9-13

Objective:

• To find the total mineral constituents of a soil it is digested with acids or fused with sodium cabonate. The method of digestion with acid such as hydrochloric, triple acids( nitric,sulphuric and perchloric) are quite common, but the most popular method is the extraction with hydrochloric acid.
• For the determination of of total phosphorus, potassium, calcium, magnesium and even for many micronutrients, this method is universaily adopted.