Page 47 - soil-plant-water relationship and water requirement
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SOIL-PLANT-WATER RELATIONSHIP AND WATER REQUIREMENT

















                                                 CHAPTER 5









                          5.0 CROP AND IRRIGATION WATER REQUIREMENT












               5.1   IRRIGATION IN AGRICULTURAL SECTORS

                     5.1.1    Irrigation

                              Irrigation is the process of applying water to the crops artificially to fulfil their
                              water  requirements.  Nutrients  may  also  be  provided  to  the  crops  through
                              irrigation. The various sources of water for irrigation are wells, ponds, lakes,
                              canals,  tube-wells  and  even  dams.  Irrigation  offers  moisture  required  for
                              growth and development, germination and other related functions.
                              The frequency, rate, amount and time of irrigation are different for different
                              crops and also vary according to the type of soil and seasons.

                              There are different types of irrigation practised for improving crop yield. These
                              types of irrigation systems are practised based on the different types of soils,
                              climates, crops and resources.


                              Irrigation can be carried out by two different methods:


                                    Traditional Methods
                                    Modern Methods



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