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首页> 外文期刊>Zeitschrift fur Bewasserungswirtschaft >Effect of irrigation methods and nitrogen fertilization on yield and quality of sweet sorghum in Upper Egypt
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Effect of irrigation methods and nitrogen fertilization on yield and quality of sweet sorghum in Upper Egypt

机译：灌溉方式和氮肥对上埃及甜高粱产量和品质的影响

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摘要

Two field trials were carried out at El-Mattana Research Station, Qena Governorate. in 1998 and 1999 seasons. The study included three irrigation systems (drip, developed surface, and traditional surface irrigation systems), three N levels (50, 75 and 100 kg N/fed) and three sweet sorghum varieties viz. Tracy, Rix and Brands. The aim of this work was to find out the effective irrigation system, N-level and the best variety of sweet sorghum characterized with the highest yield and quality under Upper Egypt conditions. The results showed that average water consumptive use reached (1940 and 1876), (2653 and 2570) and (3500 and 3420) m~3/fed for drip, developed surface, and traditional surface irrigation system in the 1st and 2nd season, respectively.Irrigation systems significantly affected forage yield. Drip irrigation achieved the highest stalk yield compared to the other two systems. However, the differences were not significant. The highest sucrose and purity percentages were significantly obtained under drip irrigation system. Increasing the applied N-dose significantly increased forage and stalk yields. Applying the highest N-level caused a significant reduction in sucrose and purity percentages. There were no significant differences among sweet sorghum varieties in stalk yield and purity percentage in both seasons and forage yield in the 2nd one while they were significantly differed in sucrose percentage in both seasons and forage yield in the 1st one. The results suggested that any of the tested varieties could he successfully planted under Upper Egypt conditions.
机译：在Qena省El-Mattana研究站进行了两次现场试验。在1998和1999赛季。该研究包括三种灌溉系统（滴灌，发达的地面灌溉系统和传统的地面灌溉系统），三个氮水平（50、75和100千克氮/日）和三个甜高粱品种。特雷西，里克斯和品牌。这项工作的目的是找出有效的灌溉系统，N级水平和在上埃及条件下具有最高产量和品质的甜高粱的最佳品种。结果表明，第一季和第二季，滴灌，发达地面灌溉和传统地面灌溉系统的平均耗水量分别达到（1940和1876），（2653和2570）和（3500和3420）m〜3 / f。灌溉系统显着影响草料产量。与其他两个系统相比，滴灌获得了最高的秸秆产量。但是，差异并不明显。在滴灌系统中，蔗糖和纯度的百分比最高。增加施氮量可显着提高草料和秸秆的产量。施用最高的N水平会导致蔗糖和纯度百分比显着降低。在第二个季节中，甜高粱品种的秸秆产量和纯度百分比以及饲草产量之间均无显着差异，而在两个季节中，甜高粱品种的蔗糖百分比和第一季中的饲草产量均存在显着差异。结果表明，任何测试过的品种都可以在上埃及条件下成功种植。

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