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Anatomy of Water Efficient Commercial System
Anatomy of Water Efficient Residential System
Anatomy of Non-Portable Irrigation
System
Drip Irrigation System
Sprinkler Irrigation System
Drip Irrigation System

Drip irrigation, also known as trickle irrigation or microirrigation, is an irrigation method which saves water and fertilizer by allowing water to drip slowly to the roots of plants, either onto the soil surface or directly onto the root zone, through a network of valves, pipes, tubing, and emitters. The drip irrigation system offered by us ensures that clients are provided with best controlled irrigation option to the cultivated lands of the farmers through utilizing most economical way of water management.

Major Components of Drip Irrigation System
Major Components of Drip Irrigation System
1 Pump station. 2 By-pass assembly
3 Control valves 4 Filtration system
5 Fertilizer tank /Venturi 6 Pressure gauge
7 Mains / Sub-mains 8 Laterals
9 Emitting devices 10 Micro tubes

Most large drip irrigation systems employ some type of filter to prevent clogging of the small emitter flow path by small waterborne particles. New technologies are now being offered that minimize clogging. Some residential systems are installed without additional filters since potable water is already filtered at the water treatment plant. Virtually all drip irrigation equipment manufacturers recommend that filters be employed and generally will not honor warranties unless this is done. Last line filters just before the final delivery pipe are strongly recommended in addition to any other filtration system due to fine particle settlement and accidental insertion of particles in the intermediate lines. Drip and subsurface drip irrigation is used almost exclusively when using recycled municipal waste water. Regulations typically do not permit spraying water through the air that has not been fully treated to potable water standards.

AGS Drip Irrigation System

Because of the way the water is applied in a drip system, traditional surface applications of timed-release fertilizer are sometimes ineffective, so drip systems often mix liquid fertilizer with the irrigation water. This is called fertigation; fertigation and chemigation (application of pesticides and other chemicals to periodically clean out the system, such as chlorine or sulfuric acid) use chemical injectors such as diaphragm pumps, piston pumps, or venturi pumps. The chemicals may be added constantly whenever the system is irrigating or at intervals. Fertilizer savings of up to 95% are being reported from recent university field tests using drip fertigation and slow water delivery as compared to timed-release and irrigation by micro spray heads.

If properly designed, installed, and managed, drip irrigation may help achieve water conservation by reducing evaporation and deep drainage when compared to other types of irrigation such as flood or overhead sprinklers since water can be more precisely applied to the plant roots. In addition, drip can eliminate many diseases that are spread through water contact with the foliage. Finally, in regions where water supplies are severely limited, there may be no actual water savings, but rather simply an increase in production while using the same amount of water as before. In very arid regions or on sandy soils, the preferred method is to apply the irrigation water as slowly as possible.

Pulsed irrigation is sometimes used to decrease the amount of water delivered to the plant at any one time, thus reducing runoff or deep percolation. Pulsed systems are typically expensive and require extensive maintenance. Therefore, the latest efforts by emitter manufacturers are focused toward developing new technologies that deliver irrigation water at ultra-low flow rates, i.e. less than 1.0 liter per hour. Slow and even delivery further improves water use efficiency without incurring the expense and complexity of pulsed delivery equipment.

Drip irrigation is used by farms, commercial greenhouses, and residential gardeners. Drip irrigation is adopted extensively in areas of acute water scarcity and especially for crops such as coconuts, containerized landscape trees, grapes, bananas, ber, brinjal, citrus, strawberries, sugarcane, cotton, maize, and tomatoes.

The advantages of drip irrigation are:

  • Minimized fertilizer/nutrient loss due to localized application and reduced leaching.
  • High water application efficiency.
  • Leveling of the field not necessary.
  • Ability to irrigate irregular shaped fields.
  • Allows safe use of recycled water.
  • Moisture within the root zone can be maintained at field capacity.
  • Soil type plays less important role in frequency of irrigation.
  • Minimized soil erosion.
  • Highly uniform distribution of water i.e., controlled by output of each nozzle.
  • Lower labour cost.
  • Variation in supply can be regulated by regulating the valves and drippers.
  • Fertigation can easily be included with minimal waste of fertilizers.
  • Foliage remains dry thus reducing the risk of disease.
  • Usually operated at lower pressure than other types of pressurised irrigation, reducing energy costs.

Crops Suitable for Drip Irrigation System
Crops Suitable for Drip Irrigation System
1. Orchard Crops Grapes, Banana, Pomegranate, Orange,
Citrus, Mango, Lemon, Custard Apple, Sapota,
Guava, Pineapple, Coconut, Cashewnut,
Papaya, Aonla, Litchi, Watermelon,
Muskmelon etc.
2. Vegetables Tomato, Chilly, Capsicum, Cabbage,
Cauliflower, Onion, Okra, Brinjal, Bitter Gourd,
Ridge Gourd, Cucumber, Peas, Spinach,
Pumpkin etc.
3. Cash Crops Sugarcane, Cotton, Arecanut, Strawberry etc.
4. Flowers Rose, Carnation, Gerbera, Anthurium,
Orchids, Jasmine, Dahilia, Marigold etc.
5. Plantation Tea, Rubber, Coffee, Coconut etc.
6. Spices Turmeric, Cloves, Mint etc,
7. Oil Seed Sunflower, Oil palm, Groundnut etc.
8. Forest Crops Teakwood, Bamboo etc.
Response of Different Crops to Drip Irrigation System
Response of Different Crops to Drip Irrigation System
Crops Water saving (%) Increase in yield (%)
Banana 45 52
Cauliflower 68 70
Chilly 68 28
Cucumber 56 48
Grapes 48 23
Ground nut 40 152
Pomegranate 45 45
Sugarcane 50 99
Sweet lime 61 50
Tomato 42 60
Watermelon 66 19
11 & 12 Ekangipuram Main Street, Ayanavaram, Chennai - 600 023.
Mobile: 94440 49636/ 91500 02727
Email: agspipe@yahoo.co.in
 
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