00988nam a2200193 4500 83 20230410143528.0 060907n1979 dr spa 0903031647 funglode83 En S 616 S839s 1979 Stern, Peter H. Small scale irrigation : A manual of low-cost water technology / Peter H. Stern London : Intermediate Technology Publications, 1979 152 p. Introduction : The irrigation scene, 13. -- The choice of technology, 19. -- Is it worthwhile irrigating?, 24. -- Moisture conservation techniques, 31. -- Surface irrigation, 38. -- Sub-soil irrigation, 53. -- Overhead irrigation, 55. -- Climatic factors, 64. -- Crops and water, 69. -- Physical and chemical characteristics of soil, 77. -- Soil and water, 83. -- Drainage, 91. -- Source development, 98. -- Channels and pipelines, 105. -- Water lifting, 115 lcc bk 103367 103367 0 0 lcc 0 0 A BJB BJB A2P 2019-01-21 0 S 616 S839s 1979 00000003210 2019-01-21 00:00:00 1 2019-01-21 bk