The Leaching Requirement During Irrigation The leaching of soluble salts from the plant rooting zone is a pivotal concern when irrigating cropland. Irrigation water is used to maintain crop productivity, so drought conditions need not occur to induce irrigation measures. Irrigation simply provides supplemental precipitation that may not be achieved through natural processes, i.e. rainfall. Basically, leaching is described as passing additional water through a medium to remove unwanted materials.
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Drainage Introduction The main objective of agricultural land drainage is to remove excess water in order to improve the profitability of farming the land. There area periods on most land when excess water occurs. However, these need not be too harmful provided the quantities are small, the periods of occurrence are of short duration or the excess occurs during a non critical season. Most land also has some natural drainage which assists in the removal of a certain amount of the excess water. It is only when large quantities occur for prolonged durations at critical periods, that it's removal bt artificial means may be feasible.
It could be realized with using effective irrigation methods such as drip or micro irrigation (ibid.,202). The irrigation methods, in particular, “furrow and basin irrigation”, which were often used in past, required large quantities of water. Therefore, these approaches were substituted by micro irrigation, in order to economize water resources (Abbasi et al 2010, 337). Generally, micro irrigation is the favourable and effective method, but there is in... ... middle of paper ... ...October 24, 2010 ) Beithou. N. 2006.
and Kanwar, R.S. (1995) Drainage and water quality in the Great Lakes and cornbelt states: Journal of Irrigation Drainage Engineering, 121, 283-288. Leventhal, E. (1990). Alternative uses of wetlands other than conventional farming in Iowa, Kansas, Missouri, and Nebraska: EPA/171/R-92/006, 145 p. McBride, M. B. (2003) Environmental Chemistry of Soils: Advances in Environmental Research, 8, 5-19 Mitsch, W.J.
Groundwater is a merchandise which is proposed to be utilized wisely whilst ensuring its serenity and sacredness as far as quality and amount. Universal usage in segments, for example, streamlined, metropolitan, commercial, agricultural and private makes groundwater polluted and changing over it as a powerless element. Populace development is on the cutting edge to make an upgraded water request because of everlasting lack of surface water and overweening industrialization. Geographic Data Systems launched a helpful harmonious relationship with ecological concerns and regular assets lately. Vacuity amidst GIS examination and geostatistics are viably connected by ArcGIS Geostatistics analyst module.
Westermann, J.L. Wright, R.E. Peckenpaugh, 1995, Nitrate Leaching Under Furrow Irrigation as Affected by Crop Sequence and Tillage: Soil Science Society of America Journal, 59: 204-210. Poincelot, Raymond C., 1986, Toward a More Sustainable Agriculture: Westport CT, AVI Publishing Co. Inc., 241 p.
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