Gravity Irrigation

The technology of micro-drops: Design and Products

Israel is a world leader in agricultural technology because of its need to maximize the productivity of limited land and fertile for converting desert land into agricultural land cultivated with very limited water resources. Based on the wealth of its scientists, engineers and support professionals, Israel accumulated vast experience in agricultural projects and irrigation technology is recognized worldwide.

The brand name "Ein-Tal" was a major factor in the search for drip irrigation and micro-development in Israel. Peretz Rosenberg has been recognized by many as one of the deans technology of drip irrigation in Israel. His inventions have become standard equipment in the industry.

In the early 90s, Peretz Rosenberg has focused on developing systems for drip irrigation for micro-developing countries who lack the basic infrastructure of water supply under pressure. One of his inventions, Gravity Drip Irrigation System ("GDIS"), is a leading example of successful technology Micro-Drip's. His idea was inspired in his first visit to China when he noticed how primitive Chinese irrigation was at that time.

The working methods of the Chinese farmer was based on a basket that carried out jointly by a man from a water reservoir in the greenhouse, using buckets to irrigate the plants one by one.

The concept is based on GDIS the idea of flow of water directly from the reservoir into the tube GDIS simply by force of gravity. No pump is needed and the small elevation of the tank on the ground is sufficient to provide small hydrostatic pressure to ensure the flow. In fact, this very low pressure is also advantageous to generate a very low water flow for irrigation. This method was a breakthrough for the farmer who installed GDIS: He could not "park" the oil basket near the greenhouse, he connected the hose, and the irrigation itself.

Technical Description GDIS:

The heart of the system is the chain of MD, combining 3 mm Micro Tube (TM) with physicians. The MT is pre-perforated spacing of 33 cm and an MD covers every bite. The diameter of the inner tube of 3 mm allows a very low water flow, similar to a capillary. The MD and the puncture in the TM are designed to emit 0.2 lit / h at very low gravity: 0.03 bar (30 cm high water column). Spacing / m 3 ® ® allows channels up to 10m, and the flow of water is delivered at both ends. Double connection is needed to maintain the whole system in balance. An R-chain structure is shown in Fig. 1 below. A single MD is shown in detail how

Micro-Drip supply chain MD for two geometric configurations for irrigation applications:

1. R channels are placed in parallel along rows of plants. This configuration is widely used in greenhouses and open spaces.
2. ® chains as necklaces are placed around the trunks of plants. This configuration is used primarily for trees in the orchards.

Both configurations can be used with pressure or gravity water system for all agriculture or gardening purposes. A schematic diagram of a chain of MD in the greenhouse Chinese, including the gun gravity feed, is shown in Fig. 2 below. Chains ® can also be installed in the longitudinal dimension of the greenhouse effect. The uniformity of the plant can be learned about the effectiveness of irrigation MD.

Today, about 15 years after the Micro-Gravity Drip Irrigation System has been invented and more than 10 years after its first implementation in China, Ein-Tal ® kits were sold to many countries in developing Asia, Africa and South America.

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