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Influence of soil amendments and soil properties on macro– and micronutrient availability to microorganisms and plants

Ramezanian Bajgiran, Atefeh (2013). Influence of soil amendments and soil properties on macro– and micronutrient availability to microorganisms and plants. Diss. (sammanfattning/summary) Uppsala : Sveriges lantbruksuniv., Acta Universitatis agriculturae Sueciae, 1652-6880 ; 2013:30
ISBN 978-91-576-7798-3
eISBN 978-91-576-7799-0
[Doctoral thesis]

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Abstract

Utilising by-products from industrial and domestic activities and from bioenergy production is one of the new ways of recovering and re-using nutrient resources in agriculture. However, these by-products can potentially add toxic elements or alter soil properties in ways that harm the soil and related environments. This thesis investigated the efficacy and potential adverse effects of using organic (biogas digestate, pot ale) and inorganic (rockdust, wood ash) by-products as amendments on the supply of nutrients to crops (wheat, mixed perennial ryegrass and red clover) and the impact on community-level physiological and genetic profiles of soil microorganisms. The influence of the inherent soil macro –and micronutrient concentration relative to a range of environmental variables was also investigated to explain the variation in physiological profiles of the microbial communities and the genotypic variation in Rhizobium/Agrobacterium in a landscape-scale study of pasture and arable soils.

The nutrient status of soils proved to be an important factor for the efficacy of amendment application. The by-products studied generally enhanced crop biomass and the content of some macronutrients and micronutrients in soils and plants when applied to nutrient-poor soils. The concentration of potentially toxic elements (Cd, Pb) was not increased in soils or plants due to amendment application. The botanical composition of mixed ryegrass-red clover stands was also affected by amendments, with biogas digestate, rockdust and wood ash producing more clover than grass. Soil microorganisms were largely unaffected by these amendments. However, the soil microbial community composition was altered by increasing the availability of nutrients through a fully-fertilised treatment. The landscape study showed that aqua regia-extractable manganese and rainfall, respectively, were the main factors explaining the variation in microbial physiological profiles and Rhizobium/Agrobacterium genotypes.

Authors/Creators:Ramezanian Bajgiran, Atefeh
Title:Influence of soil amendments and soil properties on macro– and micronutrient availability to microorganisms and plants
Series/Journal:Acta Universitatis agriculturae Sueciae (1652-6880)
Year of publishing :12 April 2013
Volume:2013:30
Number of Pages:63
Papers/manuscripts:
NumberReferences
I.Ramezanian, A., Dahlin, A.S., Campbell, C.D., Hillier, S., Mannerstedt- Fogelfors, B. and Öborn, I. (2012) Addition of a volcanic rockdust to soils has no observable effects on plant yield and nutrient status or on soil microbial activity. Plant and Soil, doi: 10.1007/s11104-012-1474-2.
II.Ramezanian, A., Dahlin, A.S., Campbell, C.D., Hillier, S. and Öborn, I. Assessing biogas digestate, pot ale, wood ash and rockdust as soil amendments: Effects on available macro- and micronutrients and microbial community composition. Manuscript
III.Dahlin, A.S., Ramezanian, A., Campbell, C.D., Hillier, S. and Öborn, I. Recycling of by-products to grass-clover mixtures affects crop growth and quality. Submitted
IV.Ramezanian, A., Campbell, C.D., Hillier, S., Dahlin, A.S. and Öborn, I. Effect of soil chemical and mineralogical properties on microbial community composition in arable and pasture soils -a landscape study. Manuscript
Place of Publication:Uppsala
Publisher:Dept. of Crop Production Ecology, Swedish University of Agricultural Sciences
Associated Programs and Other Stakeholders:SLU - Agricultural Sciences for Global Development > Efficiency in farming systems
SLU - Agricultural Sciences for Global Development > Scale issues in relation to food security and poverty alleviation
ISBN for printed version:978-91-576-7798-3
ISBN for electronic version:978-91-576-7799-0
ISSN:1652-6880
Language:English
Publication Type:Doctoral thesis
Full Text Status:Public
Agris subject categories.:F Plant production > F04 Fertilizing
P Natural resources > P35 Soil fertility
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Agricultural Science
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Soil Science
Agrovoc terms:arable soils, soil microorganisms, soil amendments, microbial ecology, nutrients, minerals, ashes, biogas, soil chemicophysical properties, toxic substances, soil fertility, crop yield, sweden
Keywords:biogas digestate, CLPP, pot ale, red clover, rhizobia, rockdust, ryegrass, T-RFLP, wood ash
URN:NBN:urn:nbn:se:slu:epsilon-e-1184
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-1184
ID Code:10218
Department:(NL, NJ) > Dept. of Crop Production Ecology
External funders:FORMAS
Deposited By: Atefeh Ramezanian Bajgiran
Deposited On:12 Apr 2013 05:51
Metadata Last Modified:11 Oct 2016 07:48

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