Nitrogen Accumulation, Retranslocation and Partitioning in Oats (Avena L.) as Affected by Different Water Supply and Nitrogen Fertilization

Abstract:

In order to investigate the effect of water and nitrogen (N) supply on oat N accumulation, translocation and partitioning, we used two contrasting oat varieties, the naked Baiyan 2 (Avena nuda L.) and the hulled Baiyan 7 (Avena sativa L.) as experimental material, six treatment combinations, including 2 water supply regimes, no irrigation and 3 times irrigation and 3 levels of N application was 30, 90 and 150 kg N hm-2 were set in the experiment. The result showed that: At each growth stage, the N accumulation of Baiyan 2 was significantly higher than that of Baiyan 7 (p N3 >N1.The N petitioning to grain of irrigation treatment was higher than that of no irrigation. Suitable N (N2, 90kg N hm-2) can increase grain N and also NHI increased. From the result, we can conclude that Baiyan 2 is a higher N efficiency cultivar. Irrigation increased the whole plant N accumulation and partitioning to grain.

• Periodical: Advanced Materials Research (Volumes 610-613)
• Pages: 2963-2967
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.610-613.2963
• Online since: December 2012
• Authors: Bao Ping Zhao, Peng Ren, Jing Hui Liu, Meng Li Zhao
• Keywords: Nitrogen Accumulation, Nitrogen Fertilizer, Oat, Partitioning and Retranslocation, Water

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