...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Saudi Journal of Biological Sciences >Agronomical traits associated with yield and yield components of winter wheat as affected by nitrogen managements
【24h】

Agronomical traits associated with yield and yield components of winter wheat as affected by nitrogen managements

机译：冬小麦产量和产量组分的农艺性状受氮管理影响的冬小麦

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Nitrogen fertilizer is one of the key elements to increase the yield and significance of winter wheat. The experiment was established in the split zone design and was repeated three times. The nitrogen application level is set to 4 treatments, 75, 150, 225 and 300?kg?hasup?1/sup are arranged in the main plot, and different nitrogen application ratios are arranged in the sub-plots, respectively 5:5 (50%+50%) and 6: 4 (60%)?+?40%). Nitrogen fertilizer was applied before sowing, jointing stage, flowering stage and filling stage. The experimental plot is 12?m2 (3?m?×?4?m). The results showed that under the conditions of 225?kg/hm2 nitrogen application and 60%+40% nitrogen application rate, the yield of Jintai 182 was the highest compared with other treatment groups. With the increase of nitrogen application rate, the number of ears, grains per ear, thousand-grain weight and grain yield all increase first and then decrease. Each factor reached the highest 225?N?kg / hm2, 417.17, 30.74, 40.96?g and 6182.11?kg / hm2. Compared with 75?kg/hm2 topdressing fertilizer, 225?kg/hm2 is a more suitable nitrogen fertilizer application rate for winter wheat. Within a reasonable range of nitrogen fertilizer application, there is a significant positive correlation between nitrogen content and winter wheat yield. By studying the amount of nitrogen fertilizer and a reasonable ratio of base fertilizer to topdressing, the utilization rate of nitrogen fertilizer can be maximized and excessive application of nitrogen fertilizer can be avoided.
机译：氮肥是提高冬小麦产量和意义的关键要素之一。实验是在分裂区设计中建立的，重复三次。氮施用水平设定为4个处理，75,150,225和300？kgβa＆＆ / sup＆在主图中布置，并且不同的氮施用比在亚曲线中排列，分别为5：5（50％+ 50％）和6：4（60％）？+？40％）。在播种，关节阶段，开花阶段和灌装阶段进行施用氮肥。实验曲线为12？M2（3？M？×4？M）。结果表明，在225×kg / hm2氮施用和60％+ 40％的氮施用率下，与其他治疗组相比，金泰182的产量最高。随着氮施用率的增加，耳朵数量，每只耳晶粒，千粒重和谷物产量均首先增加，然后减少。每个因素达到最高225？kg / hm2,417.17,30.74,40.96？g和6182.11？kg / hm2。与75 kg / hm2奶油肥，225克/ hm2相比，冬小麦是更合适的氮肥施用率。在合理的氮肥施用范围内，氮含量和冬小麦产量之间存在显着的正相关性。通过研究氮肥的量和基肥与追肥的合理比例，可以最大化氮肥的利用率，并且可以避免过度施用氮肥。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号