the-role-analysis-and-management-of-soil-life-and-organic-matter
➤ Gửi thông báo lỗi ⚠️ Báo cáo tài liệu vi phạmNội dung chi tiết: the-role-analysis-and-management-of-soil-life-and-organic-matter
the-role-analysis-and-management-of-soil-life-and-organic-matter
Institute of Organic Training & Advice: Research Review:Laboratory mineral soil analysis and soil mineral management in organic farming(This Review wa the-role-analysis-and-management-of-soil-life-and-organic-matteras undertaken by IOTA under the PACA Res project OFO347, funded by Defra)RESEARCH TOPIC REVIEW: The role, analysis and management of soil life and organic matter in soil health, crop nutrition and productivityAuthors: Christine Watson, Scottish Agricultural CollegeElizabeth Stockdale, School of Agri the-role-analysis-and-management-of-soil-life-and-organic-matterculture Food and Rural Development, Newcastle University Lois Philipps, Abacus Organic Associates1Scope and Objectives of the Research Topic Review:Ththe-role-analysis-and-management-of-soil-life-and-organic-matter
e objective of this research review is to draw together available relevant research findings in order to develop the knowledge and expertise of organiInstitute of Organic Training & Advice: Research Review:Laboratory mineral soil analysis and soil mineral management in organic farming(This Review wa the-role-analysis-and-management-of-soil-life-and-organic-matternd:1Identify all the relevant research undertaken2Collate the results of research and summarise the findings of each project3Draw on practical experience4Analyse the research and summarise the conclusions in a form that is easily accessible by advisers and can be applied to their soil related work o the-role-analysis-and-management-of-soil-life-and-organic-mattern farm.In particular the review will:•Summarise briefly the role of all soil life and focus on issues that have been identified in research.•Identifythe-role-analysis-and-management-of-soil-life-and-organic-matter
all soil life analytical protocols and focus on any that have been identified in research.•Identify how soil life can be influenced by farm managementInstitute of Organic Training & Advice: Research Review:Laboratory mineral soil analysis and soil mineral management in organic farming(This Review wa the-role-analysis-and-management-of-soil-life-and-organic-matterod and fibre production particularly with regard to: nitrogen fixation; transmission and prevention of soil-borne crop disease: Interactions with plant roots; decomposition of organic substrates; and the transformation of nitrogen (N), phosphorus (P) and sulphur (S) through direct and indirect micro the-role-analysis-and-management-of-soil-life-and-organic-matterbial action.•80-90% of all soil processes result from the interaction of soil organisms and OM.•OM in soils includes materials cycled within the soilthe-role-analysis-and-management-of-soil-life-and-organic-matter
for hundreds of years as well as materials added recently through e.g. root exudation, crop residues, manures ...•The OM content of soils is controlleInstitute of Organic Training & Advice: Research Review:Laboratory mineral soil analysis and soil mineral management in organic farming(This Review wa the-role-analysis-and-management-of-soil-life-and-organic-matter’ or ’active’ fractions of SOM that seem to be more important in affecting key soil properties.•The soil is home to organisms of all shapes and sizes making up 1-5% of soil OM.•There is a strong correlation between the total OM content of soil and the size of the soil microbial biomass population; a the-role-analysis-and-management-of-soil-life-and-organic-matters OM contents increase the size of the populations and activity of soil organisms also tends to Increase.•Soil OM is the main food resource for soil othe-role-analysis-and-management-of-soil-life-and-organic-matter
rganisms as most rely on decomposition of the complex organic materials, which comprise the soil OM. to obtain energy. Soil organisms possess the enzyInstitute of Organic Training & Advice: Research Review:Laboratory mineral soil analysis and soil mineral management in organic farming(This Review wa the-role-analysis-and-management-of-soil-life-and-organic-matterresult of their interacting activities also change it and have a key role in soil structure formation and stabilisation.Institute of Organic Training & Advice: Research Review:Laboratory mineral soil analysis and soil mineral management in organic farming(This Review was undertaken by IOTA under the the-role-analysis-and-management-of-soil-life-and-organic-matter PACA Res project OFO347. funded by Defra)Analysis methods for organic matter and soil organisms•There are a number of routine analytical methods forthe-role-analysis-and-management-of-soil-life-and-organic-matter
soil OM including combustion and chemical oxidation methods. Currently dry combustion at temperatures >900 ’c is considered to give the most reliable Institute of Organic Training & Advice: Research Review:Laboratory mineral soil analysis and soil mineral management in organic farming(This Review wa the-role-analysis-and-management-of-soil-life-and-organic-matter as soil OM.•Methods determining either light fraction OM or particulate OM measure the pool of relatively fresh, undecomposed plant residues. There are no routine analytical methods for labile soil OM: further developments are needed before such measurements become cost effective.•Measurements of s the-role-analysis-and-management-of-soil-life-and-organic-matteroil organisms and/or other biological parameters are not routinely measured in the UK or elsewhere in Europe. Some soil monitoring programmes includethe-role-analysis-and-management-of-soil-life-and-organic-matter
estimates of the capacity of the soil to supply nutrients as a result of biological processes, as well as measurements of the size of the soil microbiInstitute of Organic Training & Advice: Research Review:Laboratory mineral soil analysis and soil mineral management in organic farming(This Review wa the-role-analysis-and-management-of-soil-life-and-organic-matterof calibration and interpretation. Extraction and characterisation of DNA from soil is likely to provide cost effective approaches for the identification of individual species, groups or communities of soil organisms in the next decade.•Determination of the size of the soil microbial biomass as a si the-role-analysis-and-management-of-soil-life-and-organic-matterngle entity is possible; fumigationextraction methods are robust and routinely used in monitoring. This methodology allows estimation of the amount ofthe-role-analysis-and-management-of-soil-life-and-organic-matter
carbon, nitrogen, sulphur, or phosphorus associated with the soil microbial biomass.Institute of Organic Training & Advice: Research Review:Laboratory mineral soil analysis and soil mineral management in organic farming(This Review waInstitute of Organic Training & Advice: Research Review:Laboratory mineral soil analysis and soil mineral management in organic farming(This Review waGọi ngay
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