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生物炭对岩溶区石灰土性质及作物生长的影响(PDF)

《广西植物》[ISSN:1000-3142/CN:45-1134/Q]

期数:
2015年03期
页码:
317-324
栏目:
植物生态学
出版日期:
2015-05-20

文章信息/Info

Title:
Effects of biochar on the properties of limestone soil in karst area and crop growth
文章编号:
1000-3142(2015)03-0317-08
作者:
方培结12 李青芳23 张超兰1 张春来2 卜巧珍23 曹建华2*
1. 广西大学 环境学院, 南宁 530004; 2. 中国地质科学院岩溶地质研究所国土资源部/广西壮族自治区岩溶动力学重点实验室, 广西 桂林 541004; 3. 广西师范大学 生命科学学院, 广西 桂林 541004
Author(s):
FANG Pei-Jie12 LI Qing-Fang23 ZHANG Chao-Lan1 ZHANG Chun-Lai2 BU Qiao-Zhen23CAO Jian-Hua2*
1. School of Environment, Guangxi University, Nanning 530004, China; 2. Key Laboratory of Karst Dynamics, Ministry of Land and Resource & Guangxi, Institute of Karst Geology, Chinese Academy of Geological Science, Guilin 541004, China; 3. College of Life Sciences, Guangxi Normal University, Guilin 541004, China
关键词:
生物炭 石灰土 土壤性质 玉米 大豆 生物量
Keywords:
biochar limestone soil soil properties maize soybean biomass
分类号:
Q948.116; S156.2
DOI:
10.11931/guihaia.gxzw201403021
文献标识码:
A
摘要:
以玉米(迪卡008)和大豆(开鲜9号)为供试材料,通过野外盆栽实验,设置5个处理,每个处理蔗渣生物炭材料分别以土壤质量百分比0(CK)、0.5%(T1)、1%(T2)、2%(T3)、5%(T4)添加,研究蔗渣生物炭对岩溶区石灰土性质及农作物生长的影响。结果表明:生物炭对石灰土pH和碱解氮均无显著影响,土壤容重显著降低,提高了土壤有机碳、全氮、速效磷和速效钾的含量; 与对照相比,玉米组和大豆组T2、T3、T4处理的土壤有机碳含量分别显著增加了53.01%、96.77%、237.03%和32.66%、107.84%、256.46%,速效磷分别显著增加了32.26%、34.78%、85.37%和34.85%、35.60%、81.71%,速效钾分别显著增加了41.93%、82.49%、155.15%和69.77%、116.58%、206.91%; T3、T4处理土壤全氮分别显著增加了5.68%、25.57%和9.04%、19.77%,T3、T4处理玉米棒干重分别显著增加了11.51%、16.41%; T1、T2、T3、T4处理大豆豆荚干重分别显著增加了11.07%、11.24%、35.14%、24.89%。可见,蔗渣生物炭作为土壤改良剂,在一定程度上改善了石灰土的养分状况,促进了玉米和大豆生长。
Abstract:
A field pot experiment was conducted to study the effects of biochar on the properties of karst limestone soil and crop growth with the plants of maize and soybean planted respectively,five mass percentage levels of biochar from sugarcane bagasse were divided and added into limestone soil,which were no biochar(CK),0.5%(T1),1%(T2),2%(T3)and 5%(T4). The results showed that biochar did not have significant effects on soil pH and available N. However,the soil bulk density was reduced significantly,and the SOC,total N,available P and available K were increased because of the biochar. As compared to the control,the contents of TOC after the treatments of T2,T3 and T4 in maize and soybean group increased by 53.01%,96.77%,237.03% and 32.66%,107.84%,256.46%,respectively,available P significantly increased by 32.26%,34.78%,85.37% and 34.85%,35.60%,81.71%,available K significantly increased by 41.93%,82.49%,155.15% and 69.77%,116.58%,206.91%,respectively. The soil total N after treatments of T3 and T4 in maize and soybean group significantly increased by 5.68%,25.57% and 9.04%,19.77%,respectively. The dry weight of maize cob after treatments of T3 and T4 significantly increased by 11.51%,16.41%,respectively. However,soybean significantly increased 11.07%,11.24%,35.14%,24.89% in T1,T2,T3 and T4 treatments,respectively. Therefore,biochar from bagasse as soil amendment,improved soil properties and nutrients to some extent,accelerate maize and soybean growth.

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备注/Memo

备注/Memo:
收稿日期: 2014-05-18修回日期: 2014-08-16
基金项目: 国家自然科学基金青年基金(41302289); 中国地质调查项目(12120113005300); 国土资源部公益性行业科研专项(201211086-05); 广西重点实验室建设项目(13-051-05); 广西自然科学基金(青年基金)(2013GXNSFBA019217); 广西科学研究与技术开发计划项目(桂科合14125008-2-1)。
作者简介: 方培结(1989-),男,江西上饶人,硕士,主要研究方向为水土环境污染修复理论与技术,(E-mail)fpjie0906@163.com。 *通讯作者: 曹建华,教授,博士生导师,主要从事水土环境污染修复理论与技术研究,(E-mail)jhcao@karst.edu.cn。
更新日期/Last Update: 2015-05-20