FURROW Method
- 1. SENTHUR POLYTECHNIC COLLEGE • DEPARTMENTCONSERVATION OF MECHANICAL ENGINEERING • 4023540 / IRRIGATION ENGINEERING • SEMINAR PRESENTATION • Submitted by 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 ( 2 2 2 1 9 9 7 1 )
- 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.
- 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