The document discusses the furrow method of irrigation. Some key points:
- Furrows are small channels that carry water down slopes between crop rows, allowing water to infiltrate the soil as it moves along. This method is suitable for row crops that cannot stand water for long periods.
- Advantages include high water efficiency, adaptation to most soils, and relative ease of installation and low maintenance costs. Disadvantages include requiring skilled labor and providing drainage.
- There are different types of furrow irrigation depending on the land, including level furrows, graded straight furrows, graded contour furrows, and corrugations.
1. SENTHUR POLYTECHNIC COLLEGE
DEPARTMENT OF AGRICULTURAL TECHNOLOGY
4023540 / IRRIGATION ENGINEERING
SEMINAR PRESENTATION
S E M I N A R T O P I C
F U R R O W M E T H O D
S U B M I T T E D B Y
L A T H I K A
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2. Furrow Irrigation
▶Furrows are small channels, which carry water down
the land slope between the crop rows.
▶Water infiltrates into the soil as it moves along the
slope.
▶This method is suitable for all row crops and for
crops that cannot stand water for long periods, like 12
to 24 hours, as is generally encountered in the border
or basin methods of irrigation.
3.
4. Advantages:
▶ High water efficiency
▶ Can be used in any row
crop
▶ Relatively easy in stall
▶ Not expensive to
maintain
▶ Adapted to most soils.
▶Disadvantages:
1. Requirement of skilled
labour is more
2. Ahazard to operation of
machinery
3. Drainage must be
provided.
5. Level Furrows
● Small irrigation channels
● Irrigation water must be applied quickly
● Using furrows as large as the stream can contain
● Require extensive land preparation
● Best suited for soils with moderate to slow intake rate
Kinds of Furrow Irrigation
6. Graded Straight
● Small irrigation channels
● Relatively flat lands
● Usually constructed in straight lines
● Initial irrigation stream needs to be more than intake
rate in order for stream to advance
● Suitable for crops planted in rows
7. Graded Contour
● Small graded irrigation channels
● With uneven or warped surfaces
● Furrows are designed to fit the general curves of the
land
● Water application is the same as with graded straight
furrows
● Can be used on most soils except sandy soils and
others that crack easily
8. Corrugations
● Small, closely spaced channels
● Irrigate close-growing crops
● Conform to the slope of land because of the small
capacity of water channels
● Land slopes must be uniform to increase efficiency
