After reading this article you will learn about the delivery of water to farms through rotation delivery or warabandi system. In the rotation delivery system, water is delivered from a watercourse to various farms situated along the watercourse according to a pre-decided time roster. Accordingly, this delivery system is also known as warabandi system, which can be defined as an [...]
Flow of ground water through porous medium is governed by well-known Darcy's law which states that the rate of flow, Q through a saturated porous medium is: (i) Proportional to the difference in hydraulic head Ah between the two flow sections, (ii) Proportional to the area of flow cross-section A, and (iii) Inversely proportional to the length, L between the [...]
This article provides a paragraph on well irrigation. The amount of water stored in the earth's crust is estimated to be around 8 billion cubic kilometres, half of which is at depths less than 800 metres. This volume of water is about 35 times the combined storage of all the world's rivers, fresh water lakes, reservoirs and inland seas. Ground [...]