Necessity: 1) Drip irrigation is application of water, at a very slow rate, to the root zone of a plant. 2) This method is very useful in arid regions where water is scarce. 3) It enables application of fertilizers along with irrigation water. 4) It ensures optimal growth, better fruiting and growth of crops with optimum quantity of water 5) It is applicable to a variety of row crops – from widely spaced fruit crops to closely spaced vegetable crops
Advantages:
(i) It eliminates evaporation losses.
(ii) It requires less water to mature a crop.
(iii) Frequent ploughing is not required.
(iv) It is best method of irrigation with ground water in arid zones.
(v) It is very useful in reclaiming and developing desert area.