农业资源与环境学报2015，Vol.32Issue(5)：443-448,6.DOI:10.13254/j.jare.2015.0060
生物炭基尿素对芹菜产量、品质及土壤硝态氮含量的影响
Effect of Biochar-based Urea on Yield and Quality of Celery and Soil NO3--N Content
摘要
Abstract
Field experiment was carried out to study the effect of biochar-based urea prepared by melt pressure(YA), water immersion(PAO) and directly mixed(HUN)methods on yield, quality of celery and NO3--N content in soil compared with urea(U)and coated urea(SU). The results showed that three kinds of biochar-based urea and coated urea significantly increased the yield of celery, the order was:PAO>YA>HUN>SU, yield increased by 18.66%, 14.90%, 10.85%and 6.73%, respectively;Biochar-based fertilizer application significantly re-duced nitrate content of celery, the order was: PAO>YA>HUN>SU, reduced by 48.24%, 44.93%, 31.73%, and 29.20%, respectively;Biochar-based fertilizer increased Vc content of celery from 7.21%to 37.02%compared with urea treatment;N use efficiency of celery in-creased 4.71%, 9.94%, 11.10%and 6.93%respectively by application of SU, YA, PAO and HUN treatments. Additionally, biochar-based urea application could evidently decrease the quantity of soil NO3--N leached to deep soil and decrease the pollution to ground water.关键词
生物炭/炭基尿素/芹菜/产量/品质/氮肥利用率Key words
biochar/biochar-based urea/celery/yield/quality/N use efficiency分类
农业科技引用本文复制引用
廖上强,陈延华,李艳梅,张琳,孙焱鑫..生物炭基尿素对芹菜产量、品质及土壤硝态氮含量的影响[J].农业资源与环境学报,2015,32(5):443-448,6.基金项目
北京市缓控释肥料工程中心建设项目(z111105055311092) （z111105055311092）
灌溉定额下的设施蔬菜的水分高效利用关键技术研究与示范项目(KJCX20151407 ) （KJCX20151407 ）
现代农业产业技术体系北京市叶类蔬菜创新团队专项(blvt-08) （blvt-08）
京郊设施土壤障碍因子改良与修复技术研究与应用项目(Z151100001215014) （Z151100001215014）
