Article (Scientific journals)
Potential of three microbial bio-effectors to promote maize growth and nutrient acquisition from alternative phosphorous fertilizers in contrasting soils
Thonar, Cécile; Lekfeldt, Jonas Duus Stevens; Cozzolino, Vincenza et al.
2017In Chemical and Biological Technologies in Agriculture, 4 (1)
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Keywords :
Bacillus; Bio-effector; Bio-inoculants; Biofector; Maize; Organic fertilizer; PGPR; Phosphorus; Pseudomonas; Recycling fertilizer; Trichoderma; Biotechnology; Food Science; Biochemistry; Agronomy and Crop Science
Abstract :
[en] Background: Agricultural production is challenged by the limitation of non-renewable resources. Alternative fertilizers are promoted but they often have a lower availability of key macronutrients, especially phosphorus (P). Biological inoculants, the so-called bio-effectors (BEs), may be combined with these fertilizers to improve the nutrient use efficiency. Methods: The goal of this study was to assess the potential of three BEs in combination with alternative fertilizers (e.g., composted manure, biogas digestate, green compost) to promote plant growth and nutrient uptake in soils typical for various European regions. Pot experiments were conducted in Czech Republic, Denmark, Germany, Italy, and Switzerland where the same variety of maize was grown in local soils deficient in P in combination with alternative fertilizers and the same set of BEs (Trichoderma, Pseudomonas, and Bacillus strains). Common guidelines for pot experiment implementation and performance were developed to allow data comparison, and soils were analyzed by the same laboratory. Results: Efficiency of BEs to improve maize growth and nutrient uptake differed strongly according to soil properties and fertilizer combined. Promising results were mostly obtained with BEs in combination with organic fertilizers such as composted animal manures, fresh digestate of organic wastes, and sewage sludge. In only one experiment, the nutrient use efficiency of mineral recycling fertilizers was improved by BE inoculation. Conclusions: These BE effects are to a large extent due to improved root growth and P mobilization via accelerated mineralization.
Disciplines :
Agriculture & agronomy
Environmental sciences & ecology
Author, co-author :
Thonar, Cécile  ;  Université de Liège - ULiège > Département GxABT > Plant Sciences ; Soil Sciences Department, Research Institute of Organic Agriculture FiBL, Frick, Switzerland
Lekfeldt, Jonas Duus Stevens;  Department of Plant and Environmental Sciences, University of Copenhagen, Copenhagen, Denmark
Cozzolino, Vincenza;  CERMANU-University of Naples Federico II, Naples, Italy
Kundel, Dominika;  Soil Sciences Department, Research Institute of Organic Agriculture FiBL, Frick, Switzerland
Kulhánek, Martin;  Department of Agro-environmental Chemistry and Plant Nutrition, Czech University of Life Sciences, Prague, Czech Republic
Mosimann, Carla;  Soil Sciences Department, Research Institute of Organic Agriculture FiBL, Frick, Switzerland ; Agrofutura AG, Brugg, Switzerland
Neumann, Günter;  Institute of Crop Science 340h, University of Hohenheim, Stuttgart, Germany
Piccolo, Alessandro;  CERMANU-University of Naples Federico II, Naples, Italy
Rex, Martin;  Institut für Baustoff Forschung, Duisburg, Germany
Symanczik, Sarah;  Soil Sciences Department, Research Institute of Organic Agriculture FiBL, Frick, Switzerland
Walder, Florian;  Soil Sciences Department, Research Institute of Organic Agriculture FiBL, Frick, Switzerland ; Agroscope Reckenholz, Zurich, Germany
Weinmann, Markus;  Institute of Crop Science 340h, University of Hohenheim, Stuttgart, Germany
de Neergaard, Andreas;  Department of Plant and Environmental Sciences, University of Copenhagen, Copenhagen, Denmark
Mäder, Paul;  Soil Sciences Department, Research Institute of Organic Agriculture FiBL, Frick, Switzerland
More authors (4 more) Less
Language :
English
Title :
Potential of three microbial bio-effectors to promote maize growth and nutrient acquisition from alternative phosphorous fertilizers in contrasting soils
Publication date :
December 2017
Journal title :
Chemical and Biological Technologies in Agriculture
eISSN :
2196-5641
Publisher :
Springer International Publishing
Volume :
4
Issue :
1
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
EU - European Union
Funding text :
This study was funded by the European Community’s Seventh Framework Program 662 (FP7/2007–2013) under Grant Agreement no 312117 (BIOFEC-TOR) and by CORE Organic II (FP7 ERA-NET) under the Grant Agreement no 249667 (Improve-P).
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