Biochar amendment benefits 15N fertilizer retention and rhizosphere N enrichment in a maize-soil system

被引：0
|
作者：
Zhang, Jie [1 ,2 ]
Zhang, Lijuan [2 ]
Qiu, Shaojun [1 ]
机构：
[1] Key Laboratory of Plant Nutrition and Fertilizers, Ministry of Agriculture and Rural Affairs/Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing,100081, China
[2] College of Resources and Environmental Sciences, Hebei Agricultural University, Baoding,071000, China
来源：
Geoderma | 2022年 / 412卷
基金：
中国国家自然科学基金;
关键词：
Passive optical networks - Crops - Metabolism - Nitrogen fertilizers - Urea - Mineralogy;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Biochar amendments regulate fertilizer nitrogen (N) transformation in soil and crop N uptake. To elucidate the effect of biochar amendment on the translocation of fertilizer N in a crop-soil system during crop growth, a maize pot experiment was conducted using an isotope tracer approach. The treatments were: without N application; 15N-labelled urea; and 15N-labeled urea plus biochar. During maize growth, biochar amendment increased root biomass, total crop N uptake, and urea N retention in soil. In bulk and rhizospheric soils, biochar amendment significantly (P © 2022
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