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Drip irrigation in fruits

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Drip irrigation in fruits

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Drip irrigation in fruits

  1. 1. COLLEGE OF AGRICULTURE ASSAM AGRICULTURAL UNIVERSITY,JORHAT DEPARTMENT OF HORTICULTURE Presented By: Utpal Das 14-AMJ-93
  2. 2. DRIP IRRIGATION  Drip irrigation is a micro irrigation method in which the rate of water application is very low and without any pressure. i.e., drop by drop  Drip irrigation is based on the basic concept of irrigation only the roots zone of crop , rather than the entire land surface on which the crop is grown.
  3. 3.  Water flows from the emission points through the soil by capillarity and gravity.  The soil moisture content of the crop root zone is maintain at near optimum level to facilate optimum crop growth and production.
  4. 4. ARRANGEMENT FOR DRIP SYSTEM
  5. 5. DRIP IRRIGATION IS USEFUL FOR FRUIT CROPS Banana, Grapes, Citrus, Pomegranate, Papaya, Pineapple, Watermelon, Sweet lime, Mango, Kinnow, Mosambi.
  6. 6. ADVANTAGES OF DRIP IRRIGATION IN FRUITS  Increased yield  Early maturity  Water saving  Fertilizer saving  Increased fertilizer use efficiency by crop  Energy saving  Labour saving  Marginal land & undulated land can be irrigated  Use of saline water is possible for irrigation  Reduced weed growth  Less problem of disease and pest  Easy intercultural operations
  7. 7. DISADVANTAGES OF DRIP IRRIGATION  High cost :  drip irrigation systems are expensive because of there requirements of large quantity of piping & filtration equipment to clean the water.  Expense:  Initial cost can be more than overhead systems.  Waste:  The sun can affect the tubes used for drip irrigation, shortening their usable life. Longevity is variable.  Clogging:  If the water is not properly filtered and the equipment not properly maintained, it can result in clogging.  Drip tape causes extra cleanup costs after harvest. You'll need to plan for drip tape winding, disposal, recycling or reuse.  This method is not suitable for closely planted crops such as wheat
  8. 8. COMPARISON Drip method Flood method Water saving High, between 40 and 100 % Less. High rates of evaporation, surface run off and percolation Irrigation efficiency 80 – 90 % 30 - 50 % Weed problem Almost nil High Suitable water Even saline water can be used Only normal water can be used Diseases and pests Relatively less High Efficiency of fertilizer use Very high since supply is regulated Heavy losses due to leaching
  9. 9. Drip method Flood method Water logging Nil High Water control Can be regulated easily Not much control Cost benefit ratio (additional amount in rupees for every rupee invested) Excluding water savings: 1.3 - 13.3, Including water savings: 2.8 - 30.0 Between 1.8 and 3.9 Capital cost/ha Rs 15,000 to 40, 000 depending –– on crop spacing Yield increase 20 - 100 % higher than flood method Less compared to drip
  10. 10. COMPONENTS OF DRIP IRRIGATION SYSTEM  Pumping set  Filters  Mainlines  Sub-main  Laterals  Drippers/emitters
  11. 11.  Pumping set: To create a pressure about 2.5 Kg/sq cm to regulate the amount of water to be supplied. • Filter : To filter the water in Order to remove the suspended impurities from water.
  12. 12.  Main lines:  It is a Distribution system in drip irrigation. Rigid PVC and high density polyethylene pipes are used as main pipes to minimized corrosion and clogging.  Pipes of 65 mm diameter and with pressure rating of 4 to 10 kg/sq. cm  Sub Main:  It is usually connected to the main lines through a control valve assembly.  The function of its to distributes water uniformly to a number laterals.
  13. 13.  Drippers/emitters:  It is fitted to a drip irrigation lateral and intended to emit water in the form of drops or continuous flow at emitter rates not exceeding 15 liters/hr.  Drippers function as energy dissipated, reducing the inlet pressure head in the lateral, which generally range from 0.3 to 1.5 atmosphere .
  14. 14. CROP YIELD (kg/acre) Surface Drip % more WATER USE (m3/acre) Surface Drip % saving Banana Grapes Pomegranate Sweetlime Mango Papaya Watermelon Ber/tree Kinnow Guava/tree 23000 8000 6050 4000 3000 5200 9610 13.7 2720 160 35000 12000 11700 6000 5400 9200 15500 18.0 3920 220 52.1 50.0 94.5 50.0 80.0 76.9 61.3 31.3 44.1 37.5 7040 3880 44.8 3520 3920 34.02320 2196 6640 5100 2560 3324 34.8 61.4 43.9 68.0 40.5 18.8 29209120 1680 15.4 884 1000 12.5 692 21.7 6.4 5.2 18.7 Mosambi* 40000 50.060000 6640 2560 61.4
  15. 15.  More than 70% of Indian farmers are small scale operators cultivating plots less than one hectare. Irratic rainfall pattern play havoc into the livelihoods of the small farmers who do not have any alternate supply of water. BENEFITS TO FARMERS :
  16. 16. CONCLUSION • Drip irrigation system is an economical and very efficient system of irrigating for fruit crops, vegetables, row crops etc. • Drip irrigated crops use less water compared to overhead irrigated crops. • Drip irrigation increase yield.
  17. 17. Thank you

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