Changes in Soil Organic Matter and Biological Parameters as a Result of Long-Term Strip-Till Cultivation

Iwona Jaskulska, Joanna Lemanowicz (), Bożena Dębska, Dariusz Jaskulski and Barbara Breza-Boruta
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Iwona Jaskulska: Department of Agronomy, Bydgoszcz University of Science and Technology in Bydgoszcz, 7 Prof. S. Kaliskiego Street, 85-796 Bydgoszcz, Poland
Joanna Lemanowicz: Department of Biogeochemistry and Soil Science, Bydgoszcz University of Science and Technology in Bydgoszcz, 6/8 Bernardyńska Street, 85-029 Bydgoszcz, Poland
Bożena Dębska: Department of Biogeochemistry and Soil Science, Bydgoszcz University of Science and Technology in Bydgoszcz, 6/8 Bernardyńska Street, 85-029 Bydgoszcz, Poland
Dariusz Jaskulski: Department of Agronomy, Bydgoszcz University of Science and Technology in Bydgoszcz, 7 Prof. S. Kaliskiego Street, 85-796 Bydgoszcz, Poland
Barbara Breza-Boruta: Department of Microbiology and Food Technology, Bydgoszcz University of Science and Technology, 6 Bernardyńska Street, 85-029 Bydgoszcz, Poland

Agriculture, 2023, vol. 13, issue 12, 1-19

Abstract: The aim of the study was to determine the impact that three cultivation systems—conventional till (CT), reduced till (RT), and strip-till one-pass (ST-OP)—had on the biological parameters of the soil and their relationships with organic matter properties in the row zone (R) and inter-row zone (IR). For this purpose, a long-term static field experiment was carried out, from which soil samples were taken from a depth of 0–20 cm and the following were determined: TOC; TN content and fractional composition of organic matter; activity of dehydrogenases (DEHs), catalase (CAT), alkaline (AlP), and acid phosphatase (AcP); and the abundances of heterotophic bacteria (B), filamentous fungi (F), actinobacteria (Ac), and cellulolytic microorganisms (Ce). Soil samples for biological parameter tests were collected in summer (July) and autumn (October). RT and ST-OP increase the content of TOC, TN, carbon, and nitrogen in the humic and fulvic acid fractions. For the studied groups of microorganisms, the conditions for development were least favourable under CT cultivation. The results show that in July, the activities of DEH and CAT were the highest in ST-OP, whereas in October, they were the highest under CT. AlP and AcP activity were markedly the highest under ST-OP in both months. Enzyme activity was significantly the highest in the IR zone. The results indicate that, of the calculated multiparametric indicators, ( AlP / AcP , GMea , BIF , BA12, and TEI ), BA12 is a sensitive biological indicator of soil quality.

Keywords: TOC; TN; fractional composition of OM; soil enzymes; soil microorganisms; tillage systems (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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