Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
Add to Favorite Get Latest Update

Effect of Organic and Inorganic Fertilizer Combination on Rice Productivlty and Soil Fertility Ⅱ.Study on the content of microflora in soil and enzymatic activities

Ren Zugan; Chen Yushui; Tang Fuqin; Wang Thnghai and Zhang Yiqing(Soil and Fertrilizer Institute,Fujian Academy of Agricultural Sciences,Fuzhou 350013; Putian Agricultural Institute,Putian 351144)  
This study has approached the effect of inorganic nitrogenous fertilizer in combination with organic fertilizer on the microflorain paddy soil and enzymatic activi-ties.The location experiments of 10 rice cropping seasons in five years showed that compared with the relative treatments of equivalent nitrogens urea, the combining treat-ments of urea separately with Azolla,green manure and barnyard manure revealed that soil bacteria increased by(5.46-7.28)×105, Fungi increased by(0.96-1.96)x103,Actinomycets increased by(10. 06 -11.30)×104,Azotobacter increased by(7.85-9.56)×104,Urease-producing bacteria increased by(5.66-7.74)x105, the content of soil Hydrogenperoxide enzymatic activities increased by(0.36-0. 49)(0.1 mol/ L KMnO4ml/g.mil),the content of urease activities increased by 0. 83-1.63(NH3-Nmg/g.soil).Meanwhile the combining treatments also raised the nutrition providing capacity in soil and the rice productivities acquired remarkable benefit in soil ecological recycling and economical efficiency.
【Fund】: 国际水稻所协作研究项目
【CateGory Index】: S511.106
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