%PDF-1.3 Various methods can be used to supply irrigation … This system is best suited for areas that have a parallel slope or flat surface and a moderate fine-textured soil type. To reach maximum levels of efficiency, the flow per unit width must be as high as possible without causing erosion of the soil. Part 652 Border is again classified in to two as straight and contour. Surface irrigation, with which this chapter deals, includes the general methods of flood and furrow and cor- rugation irrigation. Also yield of vegetables irrigated with this system was 5 to 16% more than the normal production obtained with surface irrigation methods. ���/������F�0�A����� �� �Ϡ���$�)�p���.^(=ޯ?�!y��c.t��>1N��=fJg��� ?h����齒��:��)Ǎ�^EC�c#�܎e� ���K�Sj�酻�n!i���W����s��b}�&$W6�������]��V)��x5ŗ?v6��������1��N)���@?N�����NiH�,�^�i�s}��/Λ7ߨϡ ^����q\�tN��bo9!��+��(�BC*i�Q�!�v� Jx\_�5LHk'�~���r(��\�[�TPE���F��U��?o�������} ��;B���uT�*5XV�0�뛏 ��l.��\�����j��������A�� IKzLV�^-�%vO�GS{#� ����&b3��?����EZ7�I������eX�ӀƵ�\���b�Ƹ1u�"�r���>*��q�:�����+�L�چC�Ы�X�p�1�������6|�� D�. Academia.edu no longer supports Internet Explorer. ;��:�Cb*I��Wk� �ض~|�����~p��g�ɳ��ɳ~�ݵ?y��g?�����~��o?���_~����o_�����������ߏ��߾��Z}�;'?��������������{�yv~����?���k���_�u������� �4Gd�)��$ ��)@&8"Ӏ�#0����T���2�0�r�(��P�I�ȀG���G��� �#kj� ő5���9���$G��� �#k` ɑ5 0��Ț@r�&��"�Y� H��� H��i�$G�4#p��� �#kZ` ��5-0��Ț@pdM 8r�5l���i�Gִ� ��� There are different types of irrigation systems.Explore more about irrigation at BYJU'S. irrigation. YӍ��� In Surface Irrigation, water is applied and distributed over the soil surface by the help of gravity. In order to achieve this, a computer model has been developed at ILRI and is named as SURDEV. An important advantage of the furrow method is that only 0.2 to 0.5 as much surface area is wetted during irrigation as compared with flooding methods of irrigation, …and evaporation losses are correspondingly reduced. The following figures show the schematic description of surface irrigation methods. Methods of Irrigation 2. 90% of world’s total irrigated area is under this method. Surface Irrigation is a kind of irrigation where gravity works its best. Surface irrigation methods . Surface Irrigation Efficiency Surface irrigation systems are believed to have low ef-ficiencies, averaging about 60 percent. micro irrigation methods and the variety of systems for each method that can be adaptable to meet local crop, water, and site conditions and irrigation concerns. `���0H������;3�}}w�#����t9���]�g��~a'�NH�o�on�.�eĨ�_,��� ��R���*UJ�����|�\i�$|��Jh��|#� ���KN{�Me�7��˷v�z��=� .��N+R#���C0S#�0j�v-U��������ao���/�^�1]���}k����N�dU�H[�_�om�*�G�CD��Du�����`!��� ��NH�)t�����Dj�7*D�y�qT&����N�*���B��U^��;�イ�$ Ƒ�⯐m]z� N�)pE���3D���3D���3D���3D6e[g�p���3D���3D���3D����C���3D&�"K��"K��"K��"K��"���3�K��"K���!���"K��"K��"Sl��l���l���l���l��M��L��l���l���l���l���l����R�u��R�u��R�u��R�u~�R�u��W`)�:Cd)�:Cd)�:Cd)�:Cd)�:Cd�-��m�!��m���m�!��m�!�1�:C\�)��m�!��m�!��m�!��m�!��m�!��Yζ�Yʶ�Yʶ�Yʶ�ٔm�!0�Xʶ�Yʶ�Yʶ�Yʶ�Yζ�ٔi�#2��b�L�Ef�"�l�9�� �r@ʶ��f�̰Ef�"sl�y��Wd)�:Gd�-2�[�l9 e[�̲E��"�l���R�u��[d�-2��f��-(����sD��"\��l�� ��$[d�-2��a�̲EƖ4[H��"K��9"l�I��[d�-2��e�̱E��"c��-�l��I��[d�-2��e�̱E��"\��l���� ǖR�u��4[d�-2��c�̳E�"K��9"l�I���r�g�)�:Gd�-2��g�,pE���sD&�"�l�)��4[dl9 ��)�:G`�+��Xʶ��� Chapter 6 Irrigation System Design Part 652 Irrigation Guide (210-vi-NEH 652, IG Amend. Section 21 of 22 (21b - Choosing an Irrigation System) This Chapter Includes: Methods of applying water Effect of land slope Requirements, Considerations, Advantages/Disadvantages . CIVIL BY MR. KAPIL KAKODIA. Surface Method of Irrigation In this method, the irrigation method is distributed to the agricultural land through the small channels, which flood the area up to the required depth. It is by far the most common form of irrigation throughout the world and has been practiced in many areas virtually unchanged for thousands of years.. Academia.edu is a platform for academics to share research papers. Surface irrigation events have 3 phases: advance, storage, and recession. Oldest (4000 years back) and most common method. 6.3 SURFACE IRRIGATION METHODS .- - A brief about surface and subsurface irrigation method is given in Unit 1. Furrow irrigation is adapted to lands of irregular topography. 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