What is minor irrigation?
Culturable command area up to 2,000 hectares.
Whereas major and medium irrigation works are meant for tapping surface water (e.g., rivers), minor irrigation mainly involves ground water development, e.g., tube-wells, boring works, etc..
What is Mi tank?
The M.I. Tanks constructed by the Water Resources Department are not only facilitating the irrigation in hinterland, but also augmenting rural water supply. Rise in ground water table is observed in the vicinity of such schemes. The M.I.
How many tanks are there in Tamilnadu?
Our State has got about 39,000 tanks out of which around 10,000 tanks are owned by Public Works Department. Out of 10,000 tanks, about 5,000 tanks are system tanks fed by Reverine channel flows. The rest 5,000 tanks are rain fed tanks. We have got a main channel length of about 9700 K.M.
What are the 4 types of irrigation?
Some common types of irrigation systems include:Surface irrigation. Water is distributed over and across land by gravity, no mechanical pump involved.Localized irrigation. … Drip irrigation. … Sprinkler irrigation. … Center pivot irrigation. … Lateral move irrigation. … Sub-irrigation. … Manual irrigation.
What are the 3 types of irrigation?
Different irrigation systems are suited to different soils, climates, crops and resources. There are three main types of irrigation systems: surface, overhead and drip (see Table 1). Lowest cost, initially labour intensive. High investment costs, and relatively high labour and energy costs to maintain.