Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Acta Agriculturae Zhejiangensis》 2010-06
Add to Favorite Get Latest Update

Effects of different fertilizations on yield of rice and biological characters of paddy soil

WANG Yan-jun1,2,ZONG Liang-gang1,,LI Rui1,YANG Yong-gang3,XIAO Xing-ji3 (1College of Resources and Environmental Sciences,Nanjing Agricultural University,Nanjing 210095,China;2Changzhou Environmental Monitoring Center,Changzhou 213000,China;3Organic Food Development Center of State Environmental Protection Administration,Nanjing 210042,China)  
A field experiment was conducted to study the effects of different fertilizations on yields of rice and paddy soil microbial biomass.The results showed that eco-fertilizer combined with organic fertilizer could obviously enhance rice yield and improve yield components,and the yield increased by 10.5% compared with organic fertilizer treatment.Yields of rice in plot used chemical fertilizers increased by 8.1%,but yields of mineral powder mingled with organic fertilizer treatment and organic fertilizer treatment were almost equal.The peak value of chlorophyll content(SPAD value) in rice was observed on 15 d after transplanting under the normal planting condition with chemical fertilizer,while it was observed on 80 d after transplanting under organic fertilizer treatment.The mean soil microbial biomass-C in the treatment of NST was higher during whole rice growth stage,CK was the second,and GP showed a decrease compared with CK and its variation coefficient was the highest.
【Fund】: 绿色和平资助项目“中国有机农业生产效益比较研究”(200103)
【CateGory Index】: S511
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