Soil pH
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13 Terms
Definition of soil pH
A measure of the acidity or alkalinity of soil, influencing nutrient availability and microbial activity.
Optimal pH Range for crops
Most crops thrive at a pH of around 6.5, where nutrient availability is maximized.
Active Acidity
The acidity present in the soil solution.
Reserve Acidity
Acidity held on cation exchange sites.
Total Acidity
The sum of active and reserve acidity.
Effect of carbonate content on soil pH
Presence of calcium carbonate can increase pH.
Impact of leaching on soil pH
High rainfall can leach bases, leading to more acidic conditions.
Contributors to soil acidity
Organic matter decomposition contributes to soil acidity.
pH preference for blueberries
Blueberries thrive at a pH of 4.0-5.0.
How to increase soil pH
Achieved by adding lime (calcium carbonate).
How to decrease soil pH
Accomplished by adding sulfur.
Buffering Capacity in soil
Refers to the soil's ability to resist rapid pH changes, influenced by cation exchange capacity (CEC) and reserve acidity.
Importance of understanding soil pH
Crucial for effective soil management and optimizing plant growth.