LI Xin-xin,XU ui-neng,LIAO Hong.Contributions of Symbiotic Nitrogen Fixation in Soybean to Reducing FertilizationWhile Increasing Efficiency in Agriculture[J].Soybean Science,2016,35(04):525-530.[doi:10.11861/j.issn.1000-9841.2016.04.0531]
大豆共生固氮在农业减肥增效中的贡献及应用潜力
- Title:
- Contributions of Symbiotic Nitrogen Fixation in Soybean to Reducing FertilizationWhile Increasing Efficiency in Agriculture
- Keywords:
- Soybean; Rhizobia; Biological nitrogen fixation; Reducing fertilization while increasing efficiency; Sustainableeco-agriculture
- 分类号:
- S565. 1
- 文献标志码:
- A
- 摘要:
- 近年来,过度施用氮肥对农业生态环境造成了严重破坏。因此,有必要挖掘和寻求其它氮素来源。生物固氮是固氮微生物将空气中的分子态氮还原成氨的过程。其中,豆科植物- 根瘤菌共生固氮占生物固氮量的60% 以上,对农业生产具有重要的作用。大豆是我国主要的蛋白质和油料作物,也是农业生产中优良的轮作换茬和间套种作物。因此,充分发挥大豆的生物固氮作用,对减肥增效及发展环境友好型可持续生态农业意义重大。文章概述了生物固氮的生态效益、大豆生物固氮对农业生产的贡献潜力、以磷增氮机制及存在的问题等,以期为农业减肥增效及国内大豆产业提供一些可参考的途径和依据。
- Abstract:
- In recent years,excess nitrogen ( N) fertilization caused severe damage to agro-ecology. Therefore,it is anxious toexcavate and seek other N sources for plant growth and development. Biological nitrogen fixation ( BNF) is a process in whichatmospheric nitrogen ( N2) is converted into ammonia by N2 fixation bacteria. Among them,symbiotic N2 fixation by legumeswith rhizobia fixes more than 60% of the amount of BNF,which plays important roles in agricultural production. Soybean isnot only one of the major protein and oil crops,but also an excellent crop in rotation and intercropping systems. Therefore,giving full play to the BNF in soybean could bring great significance to reduce fertilization while increasing efficiency,and developingenvironmental friendly and sustainable eco-agriculture. This paper summarized the ecological benefits of BNF,contributionsof soybean BNF in agriculture production,the mechanisms of P promoting N nutrition as well as its problems,so as toprovide some strategies and basis for revival of domestic soybean production,and reducing fertilization while increasing efficiencyin agriculture.
参考文献/References:
[1] Zhang F S,Chen X P,Vitousek P. An experiment for the world[J]. Nature,2013,497: 33-35.
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备注/Memo
基金项目: 国家自然科学基金( U1301212) 。第一作者简介: 李欣欣( 1984-) ,女,博士,副教授,主要从事大豆生物固氮生理与分子机制的研究。E-mail: lixinxin0476@163. com。通讯作者: 廖红( 1969-) ,女,博士,教授,主要从事作物根系形态构型与养分高效的遗传改良研究。E-mail: hliao@ fafu. edu. cn。