|Avg. Pan Evaporation (mm/day)|
Pan Evaporation Factor
Avg. daily irrigation
|Monthly Quantity (m3/ha)|
* The figures in this table are taken from the orchard’s data base and are indicative only. Your irrigation plans should be prepared based on the meteorological data and the topographical conditions in the orchard site, according to the following calculation method:
1 mm/day from pan = 10 m3/ ha
Avg. pan evaporation X Pan evaporation factor X 10 = irrigation quantity (m3/ha/day)
When choosing a dripper, always consult your agronomist or project designer. The dripper should suit the hydraulic specifications, the water capacity and the plant needs. For additional information, please consult the Metzer experts.
VERED is a flat integral dripper with a unique pressure compensating mechanism and a large inlet filter. It is the most popular dripper for orchards. Due to its high durability and excellent field performance, the VERED dripper is also the choice product for growers of vines, deciduous trees and subtropical crops.
ADI, a cylindrical pressure compensating dripper with a large inlet filter, is considered the best of its kind. With exceptional reliability and resistance to clogging, this dripper offers the best solution for orchards and row crops in difficult terrain conditions. The ADI dripper is also ideal for irrigation with treated effluent, and for subsurface drip irrigation systems.
VARDIT is a flat integral dripper with an accurate pressure compensation mechanism. It is the most suitable choice for a modern, well-designed orchard with an adequate water source. With its elegant and relatively small structure, the VARDIT is an economical dripper providing quick return on investment.
GALI is an online PC/PCND dripper with a unique pressure compensation mechanism and a compact structure. It is highly efficient and economical, a small dripper with great performance. The GALI dripper is the right choice for new plantings, young orchards and greenhouse crops grown on soilless substrate.
Orchards and plantations are the most demanding environments for drip irrigation pipes in which on-surface exposed driplines are prone to mechanical damage. Orchards may also be a good habitat for rodents, birds and other animals that may damage the driplines. Therefore, the wall thickness for driplines in orchards and plantations are typically the thickest wall: 0.9-1.1mm.
An alternative to increasing wall thickness is using sub-surface driplines which are protected from most of the above mentioned hazards.