Phosphatase activity of eutric cambisols (Uppland, Sweden) in relation to soil properties and farming systems
2002
Sarapatka, B. (Univerzita Palackeho, Olomouc (Czech Republic). Katedra Ekologie a Zivotniho Prostredi)
The aim of the study was to assess the activity of soil phosphatases in agricultural soils in relation to some physical, chemical and biological properties. The trials were conducted at experimental locations and farms in Uppland (Sweden) with eutric cambisol soil type. The results demonstrate the correlation between acid and/or alkaline phosphatase and several soil characteristics (clay content, Corg, Ncot, pH, humic/fulvic acids ratio, P available, basal soil respiration). At the experimental plots the effect of different farming systems (conventional farming without animal husbandry, organic farming with animal husbandry, organic without animal husbandry with standard soil cultivation, and organic agricultural system without animal husbandry with minimum soil management) was also studied. The research suggests that soil phosphatase activity was directly dependent on the content of organic substances in the soils (C, N forms) which may be influenced by farming activities. Our research provides results which can help to optimize the agroecosystem with respect to both minimizing inputs and protecting the environment.
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