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Then, using the initial soil pH and the aluminium content, the amount of lime needed to raise the pH to a desired level can be calculated. [68] Amendments other than agricultural lime that can be used to increase the pH of soil include wood ash, industrial calcium oxide , magnesium oxide, basic slag (calcium silicate), and oyster shells.
Soil acidification is the buildup of hydrogen cations, which reduces the soil pH. Chemically, this happens when a proton donor gets added to the soil. The donor can be an acid , such as nitric acid , sulfuric acid , or carbonic acid .
A soil test is a laboratory or in-situ analysis to determine the chemical, physical or biological characteristics of a soil. Possibly the most widely conducted soil tests are those performed to estimate the plant-available concentrations of nutrients in order to provide fertilizer recommendations in agriculture.
Soil pH Test: For a very low price, your local Extension office will test your soil pH. To have a test completed, simply collect one cup’s worth of soil and remove all debris, such as sticks ...
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Circumneutral is a descriptor for soils which have a pH that is close to neutral. Circumneutral soils have a pH between 6.5 and 7.5. [1] A soil’s pH affects whether minerals dissolve in the soil and how quickly they dissolve. This causes circumneutral soils to have unique chemical qualities. [2]