Recognizing the importance of irrigation methods on growth and yield of coffee to coffee growers in the Central Highlands of particular interest to this measure, but most tend to use a watering exceed the requirements of the plant. With an area of ​​over 550,000 hectares of coffee, and for every 300 hectares of irrigated excess m3/ha/year average, each year producing coffee industry in the Central Highlands was a waste of 165 million m3 of water in the country, this has increased water imbalance in the Central Highlands, especially in terms of climate changes increasingly complex as today.

Along with water, the fertilizer is also important measures contribute to improving coffee productivity. At Highlands, method of application and mostly straight, most commonly applied to the soil. However, due to the fertilizer furrowing under process encountered many difficulties especially coffee delivered so most farmers apply fertilizer methods are scattered all over the ground and wait for rain. This method however has the advantage of easy and little but the encounter is the major drawback would be assigned if no rain evaporation and runoff will be a lot if heavy rain so after fertilizer fertilizer use efficiency for crop fertilizer into the soil method is often poor. Provide technical fertilizers under irrigation ( fertigation ) was confirmed using high performance. To improve the efficiency of fertilizer use , manure can provide under water through water-saving irrigation systems and auto parts distribution activities through irrigation water is an important device to reduce labor fertilizer and improve the efficiency of fertilizer use.

Improved from the drip irrigation system of foreign and tested practices, irrigation system saves water and fertilizer over for coffee Agriculture and Forestry Science Institute of the Central Highlands has been implemented in Dak Lak and Gia Lai has the following advantages:

- Operation of irrigation systems and fertilizer to each original soluble coffee, is regulated by the valve and pump systems to save labor pull the whole pipe, tube bird, leaf raking and fertilizing.

- Simple installation, fully using common materials in the country with nearly half the price cheaper and can be easily purchased in stores facilitate replication model.

- Remedy is required to use the water of the drip system.

- The amount of water that can be adjusted at a high level up to 100 liters / hour ie just started watering up to 4-5 hours to irrigate enough water for coffee flowering efficient and focused. This is a very important advantage of this system compared with drip irrigation system .

- Fertilizing fertilizer nutrient water allows an accurate and consistent manner to the wet ground and concentrated most roots . So , it is possible to meet the exact number and concentration of the essential nutrients for coffee phased growth and development .In addition, fertilizers can be divided into tranches with less amount for each round to avoid losses caused by fertilizer runoff and evaporation . Moreover, with fewer fertilizers and more dilute concentrations will minimize impact to soil microorganisms .

In summary, the water-saving irrigation water and fertilizer through calculations and plans based on each stage of growth and development of coffee while considering the characteristics of soil and climate will bring the high yield, good quality and stable with minimal impact to the environment.

The irrigation system saves water and fertilizer through the Institute of Agriculture and Forestry Science and Technology Highlands innovative research and testing installations in many coffee plantations in Dak Lak and Gia Lai. Initial results show very encouraging: the model with a 20% saving of irrigation water and fertilizer 20% growth and development are good. In addition to saving water quality, economic efficiency of each model can ha 15 million higher than in the control garden for coffee year 2011 to 2012. Currently, the Institute of Agriculture and Forestry Science and Technology Highlands continued research to complete the process and put into production soon.