The changes of enzymatic activity of soil under eastern galega (Galega orientalis Lam.) after NPKCa fertilization

B. Symanowicz, S. Kalembasa, W. Skorupka and M. Niedbała
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B. Symanowicz: Soil Science and Plant Nutrition Department, University of Natural Sciences and Humanities in Siedlce, Siedlce, Poland
S. Kalembasa: Soil Science and Plant Nutrition Department, University of Natural Sciences and Humanities in Siedlce, Siedlce, Poland
W. Skorupka: Soil Science and Plant Nutrition Department, University of Natural Sciences and Humanities in Siedlce, Siedlce, Poland
M. Niedbała: Soil Science and Plant Nutrition Department, University of Natural Sciences and Humanities in Siedlce, Siedlce, Poland

Plant, Soil and Environment, 2014, vol. 60, issue 3, 123-128

Abstract: Changes in the enzymatic activity of soil variably fertilized with NPKCa were investigated in a field experiment carried out in 2005-2010. The study was conducted with a legume plant, i.e. eastern galega (Galega orientalis Lam.). The experiment was completely randomized and carried out in three replications with the following mineral fertilization: control, N, P, K, NPK, NP, NK, PK, NPKCa, PKCa, Ca, NKCa, and NPCa. Mineral fertilization was applied in kg/ha: (N-20, P-50, K-160, Ca-150). The soil samples collected from the Ap horizon (0-30 cm) of the rhizosphere in spring after the 1st, 2nd and 3rd swathing had a pHKCl in range from 6.55 to 6.93. The activity of acid phosphatase and alkaline phosphatase was at a low level. The highest activity of urease was recorded in the soil fertilized with NPK, whereas the highest activity of dehydrogenases was in the soil fertilized with PKCa.

Keywords: mineral fertilization; phosphatases; urease; dehydrogenases; biochemical index (search for similar items in EconPapers)
Date: 2014
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpse:v:60:y:2014:i:3:id:905-2013-pse

DOI: 10.17221/905/2013-PSE

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