Changes of soil bioavailable phosphorus content in the long-term field fertilizing experiment

Martin Kulhánek, Jindřich Černý, Jiří Balík, Ondřej Sedlář and Filip Vašák
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Martin Kulhánek: Department of Agro-Environmental Chemistry and Plant Nutrition, Faculty of Agrobiology Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic
Jindřich Černý: Department of Agro-Environmental Chemistry and Plant Nutrition, Faculty of Agrobiology Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic
Jiří Balík: Department of Agro-Environmental Chemistry and Plant Nutrition, Faculty of Agrobiology Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic
Ondřej Sedlář: Department of Agro-Environmental Chemistry and Plant Nutrition, Faculty of Agrobiology Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic
Filip Vašák: Administration of State Material Reserves, Prague, Czech Republic

Soil and Water Research, 2019, vol. 14, issue 4, 240-245

Abstract: The aim of this study is to describe the changes of bioavailable phosphorus content in soil in long-term 18 years field experiments with different fertilizing systems. The field experiments are located at three sites with different soil and climatic conditions in the Czech Republic (Červený Újezd, Humpolec and Prague-Suchdol). Same fertilizing systems and crop rotation (potatoes (maize) - winter wheat - spring barley) are realized at each site with following fertilizing treatments: (1) unfertilized treatment (control), (2) farmyard manure (FYM), (3) and (4) sewage sludge (SS 1 and SS 3), (5) mineral nitrogen (N), (6) mineral nitrogen with straw (N + straw) and (7) mineral nitrogen with phosphorus and potassium (NPK). The long-term fertilizing effect on available P content changes in soil was observed. Bioavailable phosphorus content in soil increased in treatments with organic fertilization after 18 year experiment at all sites. The treatments SS 3 had the highest increase at all sites. The highest bioavailable P content increase compared to control (258 mg/kg) was determined at site Červený Újezd. On the contrary, available phosphorus content decreased at treatments with mineral fertilization and control treatment among all sites. Bioavailable P content decrease in the treatment NPK was observed, although phosphorus was applied. The lowest differences in available P content among all fertilizing treatments were observed at the location Prague-Suchdol.

Keywords: farmyard manure; mineral fertilizing; sewage sludge; soil (search for similar items in EconPapers)
Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlswr:v:14:y:2019:i:4:id:175-2018-swr

DOI: 10.17221/175/2018-SWR

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