Liming materials

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Types of liming materials

  1. Agricultural lime (calcium carbonate):
    This is the most commonly used liming material. It consists of limestone crushed to a fine powder and is usually preferred as a best material for correcting soil acidity.
  2. Dolomite:
    Dolomite is a naturally occurring rock containing calcium carbonate and magnesium carbonate. Good quality dolomite has an NV of 95–98, and contains 22% calcium and 12% magnesium. It is good for acid soils where supplies of calcium and magnesium are low
  3. Burnt lime (calcium oxide):
    Also known as quicklime, burnt lime is derived by heating limestone to drive off carbon dioxide. It is more concentrated and caustic than agricultural lime and unpleasant to handle, so is rarely used in agriculture.
  4. Hydrated lime (calcium hydroxide):
    This is made by treating burnt lime with water, and is used mainly in mortar and concrete. It is more expensive than agricultural lime.
  5. Crushed shells:
    Shells of oysters and other shellfish are mainly calcium carbonate, but the shell tends to be contaminated with sand and organic material and is usually too coarse to be effective in soil.

Why Measure PH

Why Measure PH

pH is a scale that chemists use to measure acidity. Values < 7 are considered acidic Read More...

pH is a scale that chemists use to measure acidity. Values < 7 are considered acidic, values > 7 are alkaline and 7 is neutral. Most plants can tolerate a wide pH range in solution culture, but they cannot tolerate a wide range of acidity in the soil... Read More...

 

Latest News

Tattva Hical stood first in a competition held by Unconvention, a Villgro initiative, at Ahmedabad on 26th March'2016. THC's project of 'Granulated liming products' was recognized as an initiative with high social impact.

 

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