纳米碳对玉米氮素吸收及根系活力和土壤酶活性的影响

为揭示纳米碳对作物生长的促进作用机理,以玉米东农253为试验材料,通过设置不同供氮水平,利用盆栽试验研究纳米碳对玉米氮素吸收及根系活力的影响。结果表明,N1＋C（施氮150 mg·kg^-1＋纳米碳）、N2＋C（施氮200 mg·kg^-1＋纳米碳）和N0＋C（不施氮＋纳米碳）处理的玉米植株生物量比N1（施氮150 mg·kg^-1）、N2（施氮200 mg·kg^-1）和N0（不施氮）分别增加4%、12.29%和32.60%;吸氮量比不添加纳米碳分别增加9.09%、8.33%和42.86%。除此之外,纳米碳的添加对玉米根系活力和土壤酶活性有促进作用,其中添加纳米碳处理的玉米根系活力分别增加2...

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Published in东北农业大学学报 Vol. 45; no. 7; pp. 14 - 18
Main Author 李淑敏 马辰 李丽鹤 张爱媛 韩晓光 王飞 王德江 郑成彧 毛睿麟
Format Journal Article
LanguageChinese
Published 东北农业大学资源与环境学院,哈尔滨,150030 2014
Subjects
土壤酶
根系活力
氮素吸收
玉米
纳米碳
根系活力
土壤酶
玉米
Nano-carbon
nitrogen uptake
root activity
纳米碳
soil enzyme
氮素吸收
maize
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ISSN1005-9369

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Summary:为揭示纳米碳对作物生长的促进作用机理,以玉米东农253为试验材料,通过设置不同供氮水平,利用盆栽试验研究纳米碳对玉米氮素吸收及根系活力的影响。结果表明,N1＋C（施氮150 mg·kg^-1＋纳米碳）、N2＋C（施氮200 mg·kg^-1＋纳米碳）和N0＋C（不施氮＋纳米碳）处理的玉米植株生物量比N1（施氮150 mg·kg^-1）、N2（施氮200 mg·kg^-1）和N0（不施氮）分别增加4%、12.29%和32.60%;吸氮量比不添加纳米碳分别增加9.09%、8.33%和42.86%。除此之外,纳米碳的添加对玉米根系活力和土壤酶活性有促进作用,其中添加纳米碳处理的玉米根系活力分别增加2.2倍、2.3倍和1.9倍,根际土壤脲酶分别增加7.89%、28.26%和28.57%。由此可见,纳米碳可提高玉米根系活力,促进氮素吸收,从而促进玉米植株生长。
Bibliography:23-1391/S
Li Shumin, MA Chen, LI Lihe, ZHANG Aiyuan, HAN Xiaoguang, WANG Fei, WANG Dejiang, ZHENG Chengyu, MAO Ruilin（School of Resources and Environmental Sciences, Northeast Agricultural University, Harbin 150030, China）
Nano-carbon; maize; nitrogen uptake; root activity; soil enzyme
In order to explore the mechanisms of Nano-carbon on crop growth facilitation, a pot experiment with different nitrogen supplied levels were conducted to study the effects of Nano-carbon on nitrogen absorption and root activity of maize. The results showed that maize biomass in N1 ＋C （Nitrogen 150 mg · kg^-1 ＋ Nano-carbon）, N2＋ C （Nitrogen 200 mg · kg^-1 ＋ Nano-carbon） and NO＋ C （no nitrogen ＋ Nano-carbon） treatments increased 4%, 12.29% and 32.60% than Nl（Nitrogen 150 mg. kg^-1）, N2 （Nitrogen 200 mg. kg^-1） and handling NO （no nitrogen）treatments, and N uptake by maize increased 9.09%, 8.33% and 42.86%, respectively. In addition, addition of Nano-carbon affects maize root and soil enzyme activities. The maize root activities were
ISSN:1005-9369