The influence of fertilisation and crop rotation on soil microbial characteristics in the long-term field experiment

O. Mikanová, M. Friedlová and T. Šimon
Additional contact information
O. Mikanová: Crop Research Institute, Prague-Ruzyně, Czech Republic
M. Friedlová: Crop Research Institute, Prague-Ruzyně, Czech Republic
T. Šimon: Crop Research Institute, Prague-Ruzyně, Czech Republic

Plant, Soil and Environment, 2009, vol. 55, issue 1, 11-16

Abstract: Soils were sampled from the plots with four variants of fertilisation: Nil - without fertilisation, NPK - mineral fertilisation, FYM - farmyard manure, FYM + NPK - farmyard manure with mineral fertilisation, and two variants of crop rotation: field IV - classical 9-year crop rotation, field B - 2-year rotation of alternative growing. Determination of urease, CFU of Azotobacter spp. and potential nitrogenase activity was conducted during the period 1999-2004. The urease activity was positively affected by manure fertilisation (FYM) and by the combination of FYM + NPK. The statistically significantly highest counts of Azotobacter spp. and the highest nitrogenase activity were determined on field B in variants FYM and FYM + NPK. The results show that there was a higher amount of accessible nitrogen present on field IV than on field B. This might explain the lower counts of Azotobacter spp. and therefore the lower nitrogenase activity. According to our results, activity of urease, CFU of Azotobacter spp. and potential nitrogenase activity are very closely connected with N inputs.

Keywords: urease; Azotobacter spp.; fertilisation; potential nitrogenase aktivity (search for similar items in EconPapers)
Date: 2009
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
http://pse.agriculturejournals.cz/doi/10.17221/326-PSE.html (text/html)
http://pse.agriculturejournals.cz/doi/10.17221/326-PSE.pdf (application/pdf)
free of charge

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpse:v:55:y:2009:i:1:id:326-pse

DOI: 10.17221/326-PSE

Access Statistics for this article

Plant, Soil and Environment is currently edited by Kateřina Součková

More articles in Plant, Soil and Environment from Czech Academy of Agricultural Sciences
Bibliographic data for series maintained by Ivo Andrle ().