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首页> 外文期刊>International journal of soil science >Influence of water stress on water use efficiency and dry-hay production of alfalfa in Al-Ahsa, Saudi Arabia.
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Influence of water stress on water use efficiency and dry-hay production of alfalfa in Al-Ahsa, Saudi Arabia.

机译：水分胁迫对沙特阿拉伯Al-Ahsa苜蓿的水分利用效率和干干草生产的影响。

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摘要

This study was conducted to study the performance of lucerne under water stress conditions and determine water use efficiency (WUE) for optimal forage production under the arid climatic conditions of Al-Ahsa, Saudi Arabia, having limited irrigation water supplies. Plant growth parameters of lucerne were significantly affected by different irrigation treatments. Mean lucerne dry forage (hay) yield ranged between 2.21-5.33 tonnes ha-1 in different irrigation treatments. The WUE was higher in T1 (irrigation at field capacity soil moisture level) than other water stress treatments. It was noticed that lucerne dry forage yield was severely affected by irrigation stress. In conclusion, the WUE of lucerne crop was highest in T1 (irrigation at field capacity level of soil moisture) than other irrigation treatments. The study provided an excellent opportunity for scheduling irrigation of lucerne crop for optimal dry-forage production under arid climatic conditions of Al-Ahsa.
机译：这项研究的目的是研究在水分胁迫条件下卢塞恩的性能，并确定在灌溉水供应有限的沙特阿拉伯阿萨（Al-Ahsa）干旱气候条件下，优化草料生产的水分利用效率（WUE）。不同灌溉方式对卢塞恩植物生长参数的影响很大。在不同的灌溉方式下，卢塞恩干饲料的平均产量在2.21-5.33吨ha -1 之间。在T 1 （田间持水量土壤水分水平的灌溉）下，WUE高于其他水分胁迫处理。注意到，卢塞恩干饲草产量受到灌溉压力的严重影响。总之，与其他灌溉处理相比，T 1 （在土壤水分的田间持水量水平下进行灌溉）中，苜蓿的WUE最高。该研究为安排Al-Ahsa干旱气候条件下的最佳自然干饲料生产安排卢塞恩作物​​灌溉提供了极好的机会。

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