Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Ecology and Environmental Sciences》 2010-11
Add to Favorite Get Latest Update

Effects of biochar on corn growth,nutrient uptake and soil chemical properties in seeding stage

ZHANG Hanzhi1,2,HUANG Yuan1,LIU Gang2,XU Yanping2,3,LIU Jinshan2,3, BEI Qicheng2,3,LIN Xingwu2,ZHU Jianguo2,XIE Zubin2? 1.College of Resources and Environment,Southwest University,Chongqing 400716,China; 2.State Key Laboratory of Soil and Sustainable Agriculture//Institute of Soil Science,Chinese Academy of Sciences,Nanjing 210008,China; 3.Graduate School of Chinese Academy of Sciences,Beijing 100039,China  
Pot trial was adopted to study the effects of biochar on corn growth(60 d),nutrient uptake and soil chemical properties in seeding stage.It was shown that biochar(48 t·hm-2) significantly decreased corn height from 13 to 33 days after sowing,but the inhibition effects of biochar gradually disappeared after 39 days.Biochar did not significantly affect the corn dry weight,nitrogen uptake(g·pot-1) and phosphorus uptake(g·pot-1) in seeding stage.Biochar(12,48 t·hm-2) significantly increased soil organic carbon and total nitrogen,but did not significantly affect total phosphorus,available phosphorus and pH.Soil total N,soil organic carbon and biochar amendment rates(0,2.4,12,48 t·hm-2) had significantly positive correlation(n=12,p0.01).
【Fund】: 国家自然科学基金项目(40871146);; 科技部支撑计划项目(2008BAD95B05);; 美国Blue Moon Fund中国科学院重要方向性项目(KZCX2-YW-Q1-07)
【CateGory Index】: X173
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved