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Effect of Different Fertilizers on Nitrogen Isotope Composition and Nitrate Content of Brassica campestris

文献类型： 外文期刊

作者： Yuan, Yuwei 1 ; Zhao, Ming 2 ; Zhang, Zhiheng 1 ; Chen, Tianjin 3 ; Yang, Guiling 1 ; Wang, Qiang 1 ;

作者机构： 1.Zhejiang Acad Agr Sci, Inst Qual & Stand Agr Prod, Hangzhou 310021, Zhejiang, Peoples R China

2.Qingdao Acad Agr Sci, Qingdao 266100, Peoples R China

3.Chinese Acad Agr Sci, Inst Qual Stand & Testing Technol Agroprod, Beijing 100081, Peoples R China

关键词： stable nitrogen isotope;fertilizer;nitrate;nitrate reductase;Brassica campestris

期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：5.279； 五年影响因子：5.269 ）

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收录情况： SCI

摘要： The effect of different fertilizers on the δ~(15)N value, nitrate concentration, and nitrate reductase activity of Brassica campestris and the δ~(15)N value of soil has been investigated through a pot experiment. The δ~(15)N mean value of B, campestris at the seedling stage observed in the composted chicken treatment (+8.65‰) was higher than that of chemical fertilizer treatment (+5.73‰), compost-chemical fertilizer (+7.53‰), and control check treatment (+7.86‰). There were significantly different ,δ~(15)N values (p < 0.05) between B. campestris cultivated with composted chicken manure treatment and with chemical fertilizer treatment. The similar results were also found at the middle stage and the terminal stage. The variation of δ~(15)N value in soil for different treatments was smaller than that of B. campestris, which was +6.71—+8.12‰, +6.83—+8.24‰, and +6.85—8.4‰, respectively, at seedling stage, middle stage, and terminal stage. With the growth of B. campestris, the nitrate content decreased in all treatments, and the nitrate reductase activity in B. campestris increased except for the CK. Results suggested that the δ~(15)N values of B. campestris and soil were more effected by the fertilizer than by the dose level, and the δ~(15)N value analysis could be used as a tool to discriminate the B, campestris cultivated with composted manure or chemical fertilizer.

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