临界氮浓度稀释模型在牧草种子生产中的应用前景  

Application Prospect of Critical Nitrogen Concentration Dilution Model in Grass Seed Production

作　　者：陈玲玲[1,2] 毛培胜[1] 王明亚[1] 汪辉[1] 郑慧敏[1] 陈泉竹 闫慧芳[1] 

机构地区：[1]中国农业大学草业科学系草业科学北京市重点实验室,北京100193 [2]赤峰市农牧科学研究院草原研究所,内蒙古赤峰024031

出　　处：《草地学报》2015年第2期231-236,共6页Acta Agrestia Sinica

基　　金：现代牧草产业技术体系(CARS-35)资助

摘　　要：氮素是影响牧草种子产量的关键因素,氮素对于植株分蘖、干物质生产、花序形成、产量组分动态变化等均具有影响。文章主要从临界氮浓度稀释模型的概念、构建方法、研究现状、应用等方面进行了综述,提出临界氮浓度稀释模型在实际生产中应用时存在的问题,并对其在牧草种子生产中的应用前景进行了展望。Nitrogen is one of the key nutritional elements tO determine the level of grass seed yields. The additional nitrogen supplying is beneficial for plant tillering, dry matter production, inflorescence forma- tion and the dynamic changes of the yield components. In this paper, the conception, methods, research status and the application of critical nitrogen concentration dilution model have been reviewed, and the ex- isting problems of its application in practical production were put forwarded. Finally, the application pros- pect of critical nitrogen concentration dilution model in the grass seed production were also prospected.

关 键 词：牧草种子 氮素 临界氮浓度 临界氮稀释曲线 稀释模型 

分 类 号：Q944.59[生物学—植物学]