Phosphatases activity and plant available phosphorus in soil under winter wheat (Triticum aestivum L.) fertilized minerally
Loading...
Date
2011
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy w Puławach
Abstract
Description
The aim of this study was to determine the effect of
mineral fertilization on the activity of alkaline and acid phosphatase
and content of available phosphorus in soil under winter
wheat cultivation. The first factor of experiment was the fertilization
with P, K, Mg, Ca and S in six levels: 1 (P, K, Mg, Ca and
S), 2 (K, Mg, Ca and S), 3 (P, Mg, Ca and S), 4 (P, K, Ca and S),
5 (P, K, Mg, Ca), 6 (P, K, Mg, S). Second factor was the nitrogen
fertilization in the form of ammonium nitrate (34% N) at doses:
0, 40, 80, 120, 160, 200 kg N ha-1. Soil samples were assayed
for the activity of alkaline and acid phosphatase and for the content
of available phosphorus by Egner-Riehm method (DL). The
lowest content of available phosphorus was found in soil without
P fertilization (K, Mg, Ca, and S). In the soil from those treatments,
the activity of phosphomonoesterases was the biggest.
A low content of available phosphorus in the soil was also obtained
in treatments without Mg and Ca application. A significant
effect of nitrogen fertilization on the activity of alkaline and acid
phosphatase was found. Increasing doses of nitrogen resulted in
the increased acid phosphatase activity while contributing to the
reduction of alkaline phosphatase activity.
Keywords
soil, mineral fertilization, available phosphorus, alkaline
and acid phosphatases, nitrogen
Citation
Polish Journal of Agronomy
2011, 4, 12–15