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Pedo-transfer functions are regression functions used to predict certain soil properties from other easily, routinely, or cheaply measured properties.

Method
Pedo-transfer functions used to estimate bulk density and soil moisture constants through soil texture(Sand, silt, clay),pH and soil organic carbon.

The bulk density (BD) is an important physical property of soil. It is the relationship between mass and volume of soil. It is expressed in Mg/m³.Generally it varies from 1.0 to 1.8 Mg/m³.

Bulk density is tool for calculating the soil water movement and retention, carbon sequestration studies, soil degradation studies, and soil quality assessment.

Normally the Bulk density is measured by using core sampler method.

Pedo transfer function (PTF) may provide an alternative method for estimating BD indirectly based on easily measured soil properties such as soil texture, ph and organic matter.

soil moisture constants include field capacity, permanent wilting point, moisture equivalent ,available water content etc.

These are widely use full for irrigation purpose, Soil water movement studies, ground water recharge and ecosystem viability.

Generally estimated in the Laboratory by using pressure plates and pressure membrane apparatus.

Pedo transfer function (PTF) may provide an alternative method for estimating soil moisture constants indirectly based on easily measured soil properties such as soil texture, ph and organic matter.