soil aggregation
Soil structure is the result of the spatial arrangement of the solid soil particles and their associated pore space. Aggregation mainly depends on the soil composition and texture, but is…
Seepage through soils
Introduction 'Seepage' is defined as the flow of a fluid, usually water, through a soil under a hydraulic gradient. A hydraulic gradient is supposed to exist between two points if…
Basics of Computers – Utility Software
Application software that assist OS in carrying out certain specialized tasks are called utility software. Let us look some of the most popular utility software. Antivirus A virus can be…
Soil Water
Soil acts as a sponge to take up and retain water. Movement of water into soil is called infiltration, and the downward movement of water within the soil is called percolation, permeability or hydraulic conductivity.…
Infiltration vs. Runoff
An important function of soil is to absorb water at the land surface, and either store it for use by plants or slowly release it to groundwater through gravitational flow (figure…
Root Zone Waste Water Treatment
The sight of filthy sewage flowing unrestricted into our rivers is not new. Our government spends humungous amount of public funds for treating sewage water before it is discharged into the rivers.…
Readily available water (RAW)
How much water is readily available to plants? Not all water held in the soil is readily available to plants. Some water is bound so tightly to soil particles it…
Wilting point
Wilting point is the minimum soil moisture required by a plant not to wilt. At this point, any decrease in soil moisture will result in wilting. When a plant wilts,…
Micro Irrigation
Definition of Micro Irrigation: It can be defined as the application of water at low volume and frequent interval under low pressure to plant root zone. Concept of Micro Irrigation:…
Irrigation Management
In regions with allocation systems, irrigation management is critical to maximizing water inputs. As was discussed earlier, crops respond in a linear relationship to ET. However, each inch of irrigation…
