巴基斯坦旁遮普省拉希姆亚尔汗地区不同灌溉系统棉花作物的比较研究

M. Ali
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引用次数: 4

摘要

农业部门最大的责任是利用日益有限的资源为庞大的人口生产食物和衣服。在这些限制因素中,缺水是最具威胁性的。为了有效地利用水资源,新技术日益被开发出来。仅在植物根区施用水分将成为作物节水技术之一。这将控制蒸发和浸出造成的损失。土壤灌溉不能控制气候变量,降水不能代替灌溉。及时施用,减少淋失和蒸发损失,改善作物小气候条件,是有效利用水分的途径之一。运河和管道井水通常是通过洪水灌溉给作物的。这些田地受到蒸发和浸出的直接威胁,导致过量的水分流失和破坏土壤质量。本研究以棉花为试验作物,计算比较不同灌溉制度对植株生长参数、产量及节水能力的影响。采用喷灌方式产量最高,采用滴灌方式节水。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Comparative Study of Different Irrigation System for Cotton Crop in District Rahim Yar Khan, Punjab, Pakistan
The biggest responsibility of agriculture department is to produce food and cloth for huge population using the resource getting limited day by day. Water scarcity is most threatening among these limiting factors. New techniques are being developed day by day to utilize the water efficiently. Application of water only in the plant root zone will be one of the water saving technique to grow crops. This will control the losses due to evaporation and leaching. Irrigation to soil does not control the climate variables and precipitation cannot be substituted to irrigation. Sprinkler irrigation could be one of the way to utilize the water efficiently by in time application and reducing the losses of leaching and evaporation along with amelioration of micro climate of the crop. Canals and tube well water is conventionally given to crop through flood irrigation. These fields are in direct threat of evaporation and leaching resulting in excess water losses and damaging the soil quality. The study was designed taking cotton as experimental crop to calculate comparisons in plant growth parameters and yields along with water saving ability of different irrigation system. Maximum yield was obtained from sprinkler irrigation and water was saved under drip irrigation system.
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