Interactions between Biochar and Compost Treatment and Mycorrhizal Fungi to Improve the Qualitative Properties of a Calcareous Soil under Rhizobox Conditions

Roghayeh Vahedi, MirHassan Rasouli-Sadaghiani, Mohsen Barin and Ramesh Raju Vetukuri
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Roghayeh Vahedi: Department of Soil Science, Faculty of Agriculture, Urmia University, Urmia 5756151818, Iran
MirHassan Rasouli-Sadaghiani: Department of Soil Science, Faculty of Agriculture, Urmia University, Urmia 5756151818, Iran
Mohsen Barin: Department of Soil Science, Faculty of Agriculture, Urmia University, Urmia 5756151818, Iran
Ramesh Raju Vetukuri: Department of Plant Breeding, Swedish University of Agricultural Sciences, SE-230 53 Alnarp, Sweden

Agriculture, 2021, vol. 11, issue 10, 1-15

Abstract: Most calcareous soils have relatively low levels of organic matter. To evaluate the effect of pruning waste biochar (PWB) and pruning waste compost (PWC) combined with arbuscular mycorrhizal fungi (AMF) on the biological indices, a rhizobox study on wheat using a completely randomized design was conducted under greenhouse conditions. The studied factors included the source of organic material (PWB, PWC, and control), the microbial inoculation (+AMF or ?AMF), and the zone (rhizosphere and non-rhizosphere soil). At the end of the plant growth period, organic carbon (OC), microbial biomass carbon (MBC), microbial biomass phosphorous (MBP), microbial respiration (BR), substrate-induced respiration (SIR), and alkaline (ALP) and acid (ACP) phosphatase enzyme activities in the rhizosphere and non-rhizosphere soils were determined. Simultaneous application of a source of organic matter and AMF inoculation significantly increased the OC and biological indices of soil relative to those observed when applying organic matter without AMF inoculation. Additionally, MBC, MBP, ACP, and ALP enzymes activities in the rhizosphere zone were significantly higher than in the non-rhizosphere. AMF increased BR and SIR levels in the rhizosphere by 13.06% and 7.95% compared to those in the non-rhizosphere, respectively. It can be concluded that PWC and PWB can improve soil biological properties by increasing microbial activity.

Keywords: biological indices; biochar and compost treatment; calcareous soil; mycorrhizal fungi; rhizobox; wheat cultivation (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: 2021
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