Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.
2003
Volume 6
Issue 1
Topic:
Agronomy
ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Koper J. , Piotrowska A. 2003. APPLICATION OF BIOCHEMICAL INDEX TO DEFINE SOIL FERTILITY DEPENDING ON VARIED ORGANIC AND MINERAL FERTILIZATION, EJPAU 6(1), #06.
Available Online: http://www.ejpau.media.pl/volume6/issue1/agronomy/abs-06.html

APPLICATION OF BIOCHEMICAL INDEX TO DEFINE SOIL FERTILITY DEPENDING ON VARIED ORGANIC AND MINERAL FERTILIZATION

Jan Koper, Anna Piotrowska

 

ABSTRACT



In order to compare the effect of organic and mineral fertilization of various soil types, long-term fertilization experiments frequently use indices, being a function of various parameters considered simultaneously; the content of organic carbon, microbiological parameters and soil enzymatic activity. The aim of the present research was to define soil fertility based on the values of Biochemical Soil Fertility Index (B). The index has been formulated based on the research results obtained: enzymatic activity, content of organic carbon and total nitrogen. The research material was sampled from topsoil of a many-year experiment which included varied organic and mineral fertilization, established on typical lessive soil. Soil samples were collected in 1998 from winter wheat stand, four times over the vegetation period. The following enzymes were determined: dehydrogenases, alkaline phosphatases, proteases and amylases. Additionally Corg and Ntotal and pH in 1 M KC

Key words: soil fertility, soil fertility index, organic and mineral fertilization, soil enzymes, dehydrogenases, phosphomonoesterases, amylases, proteases.