Agricultural lime

From Wikipedia, the free encyclopedia

Agricultural lime is a soil additive made from pulverized limestone or chalk. The primary active component is calcium carbonate. Additional chemicals vary depending on the mineral source and may include calcium oxide, magnesium oxide and magnesium carbonate.

Effects on soil:

• it increases the pH of acidic soil (the higher the pH the less acidic the soil)
• it provides a source of calcium for plants
• it permits improved water penetration for acidic soils

Lime may occur naturally in some soils but may require addition of sulfuric acid for its agricultural benefits to be realized. Gypsum is also used to supply calcium for plant nutrition. In livestock farming, hydrated lime can be used, as a 'disinfectant' measure, producing a dry and alkaline environment, in which bacteria do not readily multiply. In horticultural farming it can be used as an insect repellant, without causing harm to the pest or plant.

Spinner style lime spreaders are generally used to spread agricultural lime on fields. Several companies such as Stoltzfus Spreaders manufacture spreaders for this purpose.

[edit] External links

• Right Use of Lime in Soil Improvement, available at Project Gutenberg. Transcription of 1919 text by Alva Agee.

[edit] See also

• Lime
• Marl