The water is pulled up from well, lakes etc by pulley by utilising the strength of either human or animal force and chanalised the water through a deep drainage system sorrounding the agricultural field.
Agricultural mechanization is the use of mechanical technology and engineering in the field of agriculture. Most of these technological advances are meant to increase efficiency in agricultural work, reduce the stress and pressure on farmers and even reduce long term costs.
The water-filled trench around a castle is called a moat.
I think that the 'trench' you are thinking of is a moat. You could say that it is a trench full of water that surrounds the castle. If you are not thinking of a moat then I am sorry.
AGMARK - AGricultural MARKeting
A moat surrounded the castle.The moat was a form of defence for castles.
Advantage of a water moat
Into the Moat was created in 2001.
Ryan Moat's birth name is James Ryan Moat.
The moat cleaners. ;)
The moat is filled with sharks
Ryan Moat is 5' 9".
A moat is a body of water that circles a castle, and a drawbridge is part of the castle that lowers to allow people to cross the moat.