Nitrogen Use Efficiency of Two Successive-Planted Vegetables Growing in Culture Matrix Fertilized with Compost and Chemical Fertilizer, Determined by Mirror 15N Labeling Method

文献类型： 外文期刊

第一作者： Wang, Chenyu

作者： Wang, Chenyu;Peng, Zijuan;Zhao, Xiaorong;Li, Guitong;Ding, Xinyu;Ma, Zemeng;Ma, Zemeng;Ma, Zemeng

作者机构：

关键词： Continuous cropping; Compost and chemical fertilizer; N-15 isotopic labeling; Nitrogen use efficiency

期刊名称：JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION （ 影响因子：3.1； 五年影响因子：3.6 ）

ISSN： 0718-9508

年卷期： 2025 年

页码：

收录情况： SCI

摘要： PurposeTo differentiate between compost-derived nitrogen (N) and chemical-N, and to measure the chemical-N use efficiency in leaf vegetables under continuous cropping systems.MethodsWe employed 15N-labeled chemical fertilizer to distinguish compost-N from chemical-N. Additionally, a 15N mirror-labeling method was designed to differentiate the first and second chemical-N applications in a continuous cropping system. This involved setting up two replicated treatments per experimental condition: one with 15N-labeled fertilizer and the other unlabeled. By calculating the difference between these replications, the NUE of the first and second fertilizer applications was determined.ResultsThe study examined the impact of organic fertilizer type on vegetable N uptake and N conversion by applying compost and chemical fertilizer consecutively in two crop cycles on an inorganic matrix.ConclusionsThe 15N mirror labeling method, in which the core concept is the combined calculation of 15N labeling and the difference between the replications, could be used for measuring NUE in the continue cropping system with the repeated application of the same fertilizer.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序