This article throws light upon the top four methods used for the measurement of soil moisture. The methods are: 1. Gravimetric Method 2. Electrical Conductivity Method 3. Measurement by using Tensiometers 4. 4. Neutron Scattering Method. 1. Gravimetric Method: This method is the classical procedure used as the check for all other methods. A soil is sampled, put into a [...]
After reading this article you will learn about:- 1. Importance of Soil Water 2. Structure of Soil Water 3. Different Forces of Retention 4. Energy Concepts 5. Methods of Expression 6. Classification. Importance of Soil Water: Water, an excellent solvent for most of the plant nutrients, is a primary requisite for plant growth. Water serves four functions in plants: it [...]
1. Torricelli's Equation: When the water level falls through a distance Z, the velocity of its flow (v) at depth z, as described by Torricelli's equation, is equal to the velocity acquired by water due to the fall of water level. 2. Bernoulli's Equation: In flooded or saturated soil when water moves under hydrostatic pressure difference through a uniform horizontal [...]