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| 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 |
| Received:March 10, 2015 |
| DOI：10.13254/j.jare.2015.0060 |
| 中文关键词: 生物炭;炭基尿素;芹菜;产量;品质;氮肥利用率 |
| 英文关键词: biochar;biochar-based urea;celery;yield;quality;N use efficiency |
| 基金项目:北京市缓控释肥料工程中心建设项目(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 );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);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) |
| Author Name | Affiliation | E-mail | | LIAO Shang-qiang | Institute of Plant Nutrition and Resources, Beijing Academy of Agricultural and Forestry Sciences, Beijing Engineering Technology Research Center for Slow/Controlled-Released Fertilizer, Key Laboratory of Urban Agriculture(North), Ministry of Agriculture, Beijing 100097, China | | | CHEN Yan-hua | Institute of Plant Nutrition and Resources, Beijing Academy of Agricultural and Forestry Sciences, Beijing Engineering Technology Research Center for Slow/Controlled-Released Fertilizer, Key Laboratory of Urban Agriculture(North), Ministry of Agriculture, Beijing 100097, China | | | LI Yan-mei | Institute of Plant Nutrition and Resources, Beijing Academy of Agricultural and Forestry Sciences, Beijing Engineering Technology Research Center for Slow/Controlled-Released Fertilizer, Key Laboratory of Urban Agriculture(North), Ministry of Agriculture, Beijing 100097, China | | | ZHANG Lin | Institute of Plant Nutrition and Resources, Beijing Academy of Agricultural and Forestry Sciences, Beijing Engineering Technology Research Center for Slow/Controlled-Released Fertilizer, Key Laboratory of Urban Agriculture(North), Ministry of Agriculture, Beijing 100097, China | | | SUN Yan-xin | Institute of Plant Nutrition and Resources, Beijing Academy of Agricultural and Forestry Sciences, Beijing Engineering Technology Research Center for Slow/Controlled-Released Fertilizer, Key Laboratory of Urban Agriculture(North), Ministry of Agriculture, Beijing 100097, China | Sunyanxin@sohu.com |
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| 中文摘要: |
| 采用田间小区试验,研究3种不同方法:熔融高压(YA)、水溶浸泡(PAO)、直接混合(HUN)制备的生物炭基尿素及包衣尿素(SU)对芹菜产量、品质、土壤中硝态氮含量的影响。结果表明:与施用普通尿素相比,3种生物炭基尿素和包衣尿素都显著提高芹菜产量,依次顺序为:水溶浸泡> 熔融高压> 直接混合> 包衣尿素,分别增加18.66%、14.90%、10.85%和6.73%;芹菜硝酸盐含量分别降低48.24%、44.93%、31.73%、29.20%;而3种方法制备炭基氮肥芹菜Vc含量提高7.21%~37.02%;包衣尿素和3种生物炭基尿素氮肥利用率分别提高4.71%、9.94%、11.10%和6.93%;同时,生物炭基氮肥能明显减少硝态氮向土壤深层渗漏,减轻氮素淋失和对地下水污染风险。 |
| 英文摘要: |
| 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 reduced 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 increased 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. |
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