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首页> 外文期刊>Journal of Natural Sciences Research >Effect of Timing of Nitrogen Split Application on Productivity, Nitrogen Use Efficiency and Economic Benefits of Food Barley (Hordium vulgare L.) in Central Highlands of Ethiopia
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Effect of Timing of Nitrogen Split Application on Productivity, Nitrogen Use Efficiency and Economic Benefits of Food Barley (Hordium vulgare L.) in Central Highlands of Ethiopia

机译：氮气分裂适用对埃塞俄比亚中部高地食品大麦（Hordium Vulgare L.）生产率，氮气利用效率和经济效益的影响

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This study was planned to identify the appropriate nitrogen fertilizer split application timing for food barley using 'HB-1307' food barley variety. This experiment was done at Holeta Agricultural Research center, West Shoa, Ethiopia. The split nitrogen application times were ? at planting ? at mid tillering, ? at planting ? at anthesis, nil at planting ? at mid tillering ? at anthesis, nil at planting full at mid tillering, nil at planting full at anthesis, ? at planting 2/3 at mid tillering, 1/3 at planting 1/3 mid tillering 1/3 at anthesis, nil at planting 1/3 mid tillering 2/3 at anthesis, 2/3 at planting 1/3 mid tillering, 2/3 at planting 1/3 at anthesis, full at planting and negative control. The experiment was laid out randomized complete block design with three replications. Timing of split nitrogen fertilizer applications has significant effect on the yield and yield component of food barley. Application of nitrogen fertilizer one third at sowing plus two third at mid tillering gave the highest grain yield. This application method gave a yield advantage of 9.96 % over the commonly practiced 1/2 at sowing and 1/2 at mid tillering. It also gave the highest economic return and agronomic Nitrogen Use Efficiency.
机译：本研究计划使用“HB-1307”食品大麦品种鉴定食品大麦的适当氮肥分裂应用时序。该实验是在Holeta农业研究中心，埃塞俄比亚西部Shoa。分裂氮施用时间是？种植？在中间分蘖下，？种植？在花序，尼尔在种植？在中间分蘖？在开花间，尼尔在中间分蘖下种植，在花序中种植满满的？在植入2/3在中间分蘖下，1/3种植1/3中间分蘖1/3在开孔中，在花序中种植1/3中间分蘖2/3，2/3在种植1/3中分蘖， 2/3在花序中种植1/3，满是种植和阴性对照。该实验被定制了三种复制的随机完整块设计。分裂氮肥应用的时间对食品大麦的产量和产量成分具有显着影响。施氮化氮肥在播种加上三分之一的中间分蘖的应用得到了最高的籽粒产量。该申请方法在播种和1/2时，在播种的1/2且在MID分蘖下施用9.96％的屈服优势。它还提供了最高的经济回报和农艺氮气利用效率。

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