文献类型： 外文期刊

作者： Zou, Zhaohui ¹ ; Deng, Gangqiao ¹ ; Peng, Xuanming ¹ ; Xie, Hongke ¹ ; Li, Xian ¹ ; Peng, Lin ¹ ; Zhang, Zhiyuan ² ;

作者机构： 1.Hunan Acad Agr Sci, Changsha 410125, Hunan, Peoples R China

2.Dept Biol & Environm Engn, Changsha 410022, Hunan, Peoples R China

关键词： Rice; L-leucine-N-15; L-lysine-N-15; Nitrogen content; Essential amino acid

期刊名称：INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY （ 影响因子：0.822； 五年影响因子：0.906 ）

ISSN： 1560-8530

年卷期： 2018 年 20 卷 9 期

页码：

收录情况： SCI

摘要： The improvement of nitrogen utilization efficiency and the increase of essential amino acid contents in rice is the main purpose of reducing fertilizer and increasing quality in rice production. An experiment was conducted in order to explore the effects of exogenous amino acids on the nitrogen accumulation and the content of essential amino acids in rice: for the 6 treatment groups, 500 mg/L of eachL-leucine-N-15 and L-lysine-N-15 sprayed on the rice leaves at the tillering, heading and the ripening stages, and for the control group, only water was sprayed. The results showed that exogenous L-leucine-N-15 and L lysine-N-15 increased the content of nitrogen and essential amino acid in leaves, stems of rice (P<0.05), and with the increase of spraying times, the content of nitrogen and essential amino acid increased. At the same time, it was found that the 50% of N-15 absorbed by leaves is mainly transported to rice grains. In conclusion, the exogenous application of amino acids could significantly increase the accumulation of nitrogen and the content of essential amino acids in grain; improve the yield and quality of rice. (C) 2018 Friends Science Publishers