at night
it helped them to grow better crops
Irrigate/irrigation.
irragation canals
To irrigate crops
To irrigate crops
The salt which is present in sea water will kill most crops.
The floodwaters of the Nile and irrigation canals.
Irrigate is already a verb because it is an action.Other verbs are irrigates, irrigating and irrigated, depending on tense.For example, here are some sentences:"We will irrigate the crops today"."They irrigate the fields"."We need to do some irrigating"."They irrigated the farmland"
Irrigate [water] their land to grow crops.
Not enough jobs to support everybodyLess crops (Not enough land to produce crops)Not enough water to irrigate land used for crops
The rota usually follows a cycle of one week ,far a farmer have a turn for several hours, weekly. the time given to a farmer depends on his acreage.Those farmers who irrigate at night for a year, next year they will irrigate in day next year. while, its dis-advantage is that it CONTINUES to operate even if there is no water in the canal to irrigate there crops with.so those farmers who are irrigating their crops at the time when the water dries in the canal, and the flow of water starts agin, its probably the other farmers turn by then. This is known as the pakka warrabandi rota system.
They extracted it from rivers and ground wells and used canals to irrigate crops.