Evaluation of compost and straw mulching on soil-loss characteristics in erosion plots of potatoes in Prince Edward Island, Canada
Identifieur interne : 001095 ( Istex/Corpus ); précédent : 001094; suivant : 001096Evaluation of compost and straw mulching on soil-loss characteristics in erosion plots of potatoes in Prince Edward Island, Canada
Auteurs : Linnell Edwards ; J. R Burney ; G. Richter ; A. H MacraeSource :
- Agriculture, Ecosystems and Environment [ 0167-8809 ] ; 2000.
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Abstract
The intensive use of Prince Edward Island (PEI) farmland for potato (Solanum tuberosum L.) production draws concern because of soil physical degradation under the intense tillage and other heavy traffic associated with the mechanisation of this crop, and the resulting vulnerability of sloping fields to hydraulic erosion. Growing public consciousness and pressure in favour of sustainable agriculture have engendered farmer interest in a possible place for commercial farm by-products in commercial cropping. Using existing natural erosion plots in PEI, the effects of compost amendment and straw mulching were assessed in terms of soil loss and soil physical condition on a fine sandy loam (Orthic Podzol). The treatment materials are local by-products of potato farming systems, and were used for an insight into the likelihood of sustainable commercial use. Compost had no effect on soil loss. Mulching reduced soil loss by almost 50%. Both treatments increased soil water content by 6–7%. Among the treatment effects on soil physical characteristics, soil penetration resistance below the root zone was reduced almost 20%; and, in the third year of the study, soil aggregate stability increased 7% with compost. Shear strength showed a strong (p≤0.05) regression relationship (R2=0.835) with bulk density.
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DOI: 10.1016/S0167-8809(00)00162-6
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<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Evaluation of compost and straw mulching on soil-loss characteristics in erosion plots of potatoes in Prince Edward Island, Canada</title><author><name sortKey="Edwards, Linnell" sort="Edwards, Linnell" uniqKey="Edwards L" first="Linnell" last="Edwards">Linnell Edwards</name><affiliation><mods:affiliation>Crops & Livestock Research Centre, P.O. Box 1210, Charlottetown, PEI, Canada C1A 7M8</mods:affiliation></affiliation></author><author><name sortKey="Burney, J R" sort="Burney, J R" uniqKey="Burney J" first="J. R" last="Burney">J. R Burney</name><affiliation><mods:affiliation>Biological Engineering Department, Dalhousie University, DalTech, Halifax, NS, Canada B3J 2X4</mods:affiliation></affiliation></author><author><name sortKey="Richter, G" sort="Richter, G" uniqKey="Richter G" first="G" last="Richter">G. Richter</name><affiliation><mods:affiliation>Physical Geography Department, Trier University, D-54286 Trier, Germany</mods:affiliation></affiliation></author><author><name sortKey="Macrae, A H" sort="Macrae, A H" uniqKey="Macrae A" first="A. H" last="Macrae">A. H Macrae</name><affiliation><mods:affiliation>E-mail: edwardsl@em.agr.ca</mods:affiliation></affiliation><affiliation><mods:affiliation>Crops & Livestock Research Centre, P.O. Box 1210, Charlottetown, PEI, Canada C1A 7M8</mods:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:66D67C7535E97FFD13B5F9F4552092649BD17466</idno><date when="2000" year="2000">2000</date><idno type="doi">10.1016/S0167-8809(00)00162-6</idno><idno type="url">https://api.istex.fr/document/66D67C7535E97FFD13B5F9F4552092649BD17466/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">001095</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">001095</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Evaluation of compost and straw mulching on soil-loss characteristics in erosion plots of potatoes in Prince Edward Island, Canada</title><author><name sortKey="Edwards, Linnell" sort="Edwards, Linnell" uniqKey="Edwards L" first="Linnell" last="Edwards">Linnell Edwards</name><affiliation><mods:affiliation>Crops & Livestock Research Centre, P.O. Box 1210, Charlottetown, PEI, Canada C1A 7M8</mods:affiliation></affiliation></author><author><name sortKey="Burney, J R" sort="Burney, J R" uniqKey="Burney J" first="J. R" last="Burney">J. R Burney</name><affiliation><mods:affiliation>Biological Engineering Department, Dalhousie University, DalTech, Halifax, NS, Canada B3J 2X4</mods:affiliation></affiliation></author><author><name sortKey="Richter, G" sort="Richter, G" uniqKey="Richter G" first="G" last="Richter">G. Richter</name><affiliation><mods:affiliation>Physical Geography Department, Trier University, D-54286 Trier, Germany</mods:affiliation></affiliation></author><author><name sortKey="Macrae, A H" sort="Macrae, A H" uniqKey="Macrae A" first="A. H" last="Macrae">A. H Macrae</name><affiliation><mods:affiliation>E-mail: edwardsl@em.agr.ca</mods:affiliation></affiliation><affiliation><mods:affiliation>Crops & Livestock Research Centre, P.O. Box 1210, Charlottetown, PEI, Canada C1A 7M8</mods:affiliation></affiliation></author></analytic><monogr></monogr><series><title level="j">Agriculture, Ecosystems and Environment</title><title level="j" type="abbrev">AGEE</title><idno type="ISSN">0167-8809</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="2000">2000</date><biblScope unit="volume">81</biblScope><biblScope unit="issue">3</biblScope><biblScope unit="page" from="217">217</biblScope><biblScope unit="page" to="222">222</biblScope></imprint><idno type="ISSN">0167-8809</idno></series><idno type="istex">66D67C7535E97FFD13B5F9F4552092649BD17466</idno><idno type="DOI">10.1016/S0167-8809(00)00162-6</idno><idno type="PII">S0167-8809(00)00162-6</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0167-8809</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Compost amendment</term><term>Erosion plots</term><term>Mulching</term><term>Soil erosion</term><term>Soil structure</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The intensive use of Prince Edward Island (PEI) farmland for potato (Solanum tuberosum L.) production draws concern because of soil physical degradation under the intense tillage and other heavy traffic associated with the mechanisation of this crop, and the resulting vulnerability of sloping fields to hydraulic erosion. Growing public consciousness and pressure in favour of sustainable agriculture have engendered farmer interest in a possible place for commercial farm by-products in commercial cropping. Using existing natural erosion plots in PEI, the effects of compost amendment and straw mulching were assessed in terms of soil loss and soil physical condition on a fine sandy loam (Orthic Podzol). The treatment materials are local by-products of potato farming systems, and were used for an insight into the likelihood of sustainable commercial use. Compost had no effect on soil loss. Mulching reduced soil loss by almost 50%. Both treatments increased soil water content by 6–7%. Among the treatment effects on soil physical characteristics, soil penetration resistance below the root zone was reduced almost 20%; and, in the third year of the study, soil aggregate stability increased 7% with compost. Shear strength showed a strong (p≤0.05) regression relationship (R2=0.835) with bulk density.</div></front></TEI><istex><corpusName>elsevier</corpusName><author><json:item><name>Linnell Edwards</name><affiliations><json:string>Crops & Livestock Research Centre, P.O. Box 1210, Charlottetown, PEI, Canada C1A 7M8</json:string></affiliations></json:item><json:item><name>J.R Burney</name><affiliations><json:string>Biological Engineering Department, Dalhousie University, DalTech, Halifax, NS, Canada B3J 2X4</json:string></affiliations></json:item><json:item><name>G Richter</name><affiliations><json:string>Physical Geography Department, Trier University, D-54286 Trier, Germany</json:string></affiliations></json:item><json:item><name>A.H MacRae</name><affiliations><json:string>E-mail: edwardsl@em.agr.ca</json:string><json:string>Crops & Livestock Research Centre, P.O. Box 1210, Charlottetown, PEI, Canada C1A 7M8</json:string></affiliations></json:item></author><subject><json:item><lang><json:string>eng</json:string></lang><value>Soil erosion</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Erosion plots</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Compost amendment</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Mulching</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Soil structure</value></json:item></subject><language><json:string>eng</json:string></language><originalGenre><json:string>Short communication</json:string></originalGenre><abstract>The intensive use of Prince Edward Island (PEI) farmland for potato (Solanum tuberosum L.) production draws concern because of soil physical degradation under the intense tillage and other heavy traffic associated with the mechanisation of this crop, and the resulting vulnerability of sloping fields to hydraulic erosion. Growing public consciousness and pressure in favour of sustainable agriculture have engendered farmer interest in a possible place for commercial farm by-products in commercial cropping. Using existing natural erosion plots in PEI, the effects of compost amendment and straw mulching were assessed in terms of soil loss and soil physical condition on a fine sandy loam (Orthic Podzol). The treatment materials are local by-products of potato farming systems, and were used for an insight into the likelihood of sustainable commercial use. Compost had no effect on soil loss. Mulching reduced soil loss by almost 50%. Both treatments increased soil water content by 6–7%. Among the treatment effects on soil physical characteristics, soil penetration resistance below the root zone was reduced almost 20%; and, in the third year of the study, soil aggregate stability increased 7% with compost. Shear strength showed a strong (p≤0.05) regression relationship (R2=0.835) with bulk density.</abstract><qualityIndicators><score>5.945</score><pdfVersion>1.2</pdfVersion><pdfPageSize>612 x 792 pts (letter)</pdfPageSize><refBibsNative>true</refBibsNative><keywordCount>5</keywordCount><abstractCharCount>1310</abstractCharCount><pdfWordCount>3593</pdfWordCount><pdfCharCount>22212</pdfCharCount><pdfPageCount>6</pdfPageCount><abstractWordCount>196</abstractWordCount></qualityIndicators><title>Evaluation of compost and straw mulching on soil-loss characteristics in erosion plots of potatoes in Prince Edward Island, Canada</title><pii><json:string>S0167-8809(00)00162-6</json:string></pii><refBibs><json:item><author><json:item><name>P. Ambus</name></json:item><json:item><name>E.S. 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Sutherland</name></json:item></author><host><volume>45</volume><pages><last>278</last><first>265</first></pages><author></author><title>Soil Till. Res.</title></host><title>Reduction in interrill sediment transport by rolled erosion control systems</title></json:item></refBibs><genre><json:string>brief-communication</json:string></genre><host><volume>81</volume><pii><json:string>S0167-8809(00)X0069-2</json:string></pii><pages><last>222</last><first>217</first></pages><issn><json:string>0167-8809</json:string></issn><issue>3</issue><genre><json:string>journal</json:string></genre><language><json:string>unknown</json:string></language><title>Agriculture, Ecosystems and Environment</title><publicationDate>2000</publicationDate></host><categories><wos><json:string>science</json:string><json:string>environmental sciences</json:string><json:string>ecology</json:string><json:string>agriculture, multidisciplinary</json:string></wos><scienceMetrix><json:string>applied sciences</json:string><json:string>agriculture, fisheries & forestry</json:string><json:string>agronomy & agriculture</json:string></scienceMetrix></categories><publicationDate>2000</publicationDate><copyrightDate>2000</copyrightDate><doi><json:string>10.1016/S0167-8809(00)00162-6</json:string></doi><id>66D67C7535E97FFD13B5F9F4552092649BD17466</id><score>0.8294739</score><fulltext><json:item><extension>pdf</extension><original>true</original><mimetype>application/pdf</mimetype><uri>https://api.istex.fr/document/66D67C7535E97FFD13B5F9F4552092649BD17466/fulltext/pdf</uri></json:item><json:item><extension>zip</extension><original>false</original><mimetype>application/zip</mimetype><uri>https://api.istex.fr/document/66D67C7535E97FFD13B5F9F4552092649BD17466/fulltext/zip</uri></json:item><istex:fulltextTEI uri="https://api.istex.fr/document/66D67C7535E97FFD13B5F9F4552092649BD17466/fulltext/tei"><teiHeader><fileDesc><titleStmt><title level="a" type="main" xml:lang="en">Evaluation of compost and straw mulching on soil-loss characteristics in erosion plots of potatoes in Prince Edward Island, Canada</title></titleStmt><publicationStmt><authority>ISTEX</authority><publisher>ELSEVIER</publisher><availability><p>©2000 Elsevier Science B.V.</p></availability><date>2000</date></publicationStmt><notesStmt><note type="content">Section title: Short communication</note><note type="content">Fig. 1: Relationship between shear strength and bulk density in (soil cores) induced by compost and mulching treatments.</note><note type="content">Table 1: Effect of compost amendment on soil-loss characteristics of erosion plotsa of potatoes (mean values: 1996–98)</note><note type="content">Table 2: Effect of straw mulching on soil-loss characteristics of erosion plotsa of potatoes (mean values: 1996–98)</note></notesStmt><sourceDesc><biblStruct type="inbook"><analytic><title level="a" type="main" xml:lang="en">Evaluation of compost and straw mulching on soil-loss characteristics in erosion plots of potatoes in Prince Edward Island, Canada</title><author xml:id="author-1"><persName><forename type="first">Linnell</forename><surname>Edwards</surname></persName><affiliation>Crops & Livestock Research Centre, P.O. Box 1210, Charlottetown, PEI, Canada C1A 7M8</affiliation></author><author xml:id="author-2"><persName><forename type="first">J.R</forename><surname>Burney</surname></persName><affiliation>Biological Engineering Department, Dalhousie University, DalTech, Halifax, NS, Canada B3J 2X4</affiliation></author><author xml:id="author-3"><persName><forename type="first">G</forename><surname>Richter</surname></persName><affiliation>Physical Geography Department, Trier University, D-54286 Trier, Germany</affiliation></author><author xml:id="author-4"><persName><forename type="first">A.H</forename><surname>MacRae</surname></persName><email>edwardsl@em.agr.ca</email><note type="correspondence"><p>Corresponding author. Tel: +1-902-566-6871; fax: +1-902-566-6821</p></note><affiliation>Crops & Livestock Research Centre, P.O. Box 1210, Charlottetown, PEI, Canada C1A 7M8</affiliation></author></analytic><monogr><title level="j">Agriculture, Ecosystems and Environment</title><title level="j" type="abbrev">AGEE</title><idno type="pISSN">0167-8809</idno><idno type="PII">S0167-8809(00)X0069-2</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="2000"></date><biblScope unit="volume">81</biblScope><biblScope unit="issue">3</biblScope><biblScope unit="page" from="217">217</biblScope><biblScope unit="page" to="222">222</biblScope></imprint></monogr><idno type="istex">66D67C7535E97FFD13B5F9F4552092649BD17466</idno><idno type="DOI">10.1016/S0167-8809(00)00162-6</idno><idno type="PII">S0167-8809(00)00162-6</idno></biblStruct></sourceDesc></fileDesc><profileDesc><creation><date>2000</date></creation><langUsage><language ident="en">en</language></langUsage><abstract xml:lang="en"><p>The intensive use of Prince Edward Island (PEI) farmland for potato (Solanum tuberosum L.) production draws concern because of soil physical degradation under the intense tillage and other heavy traffic associated with the mechanisation of this crop, and the resulting vulnerability of sloping fields to hydraulic erosion. Growing public consciousness and pressure in favour of sustainable agriculture have engendered farmer interest in a possible place for commercial farm by-products in commercial cropping. Using existing natural erosion plots in PEI, the effects of compost amendment and straw mulching were assessed in terms of soil loss and soil physical condition on a fine sandy loam (Orthic Podzol). The treatment materials are local by-products of potato farming systems, and were used for an insight into the likelihood of sustainable commercial use. Compost had no effect on soil loss. Mulching reduced soil loss by almost 50%. Both treatments increased soil water content by 6–7%. Among the treatment effects on soil physical characteristics, soil penetration resistance below the root zone was reduced almost 20%; and, in the third year of the study, soil aggregate stability increased 7% with compost. Shear strength showed a strong (p≤0.05) regression relationship (R2=0.835) with bulk density.</p></abstract><textClass xml:lang="en"><keywords scheme="keyword"><list><head>Keywords</head><item><term>Soil erosion</term></item><item><term>Erosion plots</term></item><item><term>Compost amendment</term></item><item><term>Mulching</term></item><item><term>Soil structure</term></item></list></keywords></textClass></profileDesc><revisionDesc><change when="2000-03-02">Modified</change><change when="2000">Published</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><extension>txt</extension><original>false</original><mimetype>text/plain</mimetype><uri>https://api.istex.fr/document/66D67C7535E97FFD13B5F9F4552092649BD17466/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Elsevier, elements deleted: ce:floats; body; tail"><istex:xmlDeclaration>version="1.0" encoding="utf-8"</istex:xmlDeclaration><istex:docType PUBLIC="-//ES//DTD journal article DTD version 4.5.2//EN//XML" URI="art452.dtd" name="istex:docType"><istex:entity SYSTEM="gr1" NDATA="IMAGE" name="gr1"></istex:entity></istex:docType><istex:document><converted-article version="4.5.2" docsubtype="sco" xml:lang="en"><item-info><jid>AGEE</jid><aid>1591</aid><ce:pii>S0167-8809(00)00162-6</ce:pii><ce:doi>10.1016/S0167-8809(00)00162-6</ce:doi><ce:copyright type="full-transfer" year="2000">Elsevier Science B.V.</ce:copyright></item-info><head><ce:dochead><ce:textfn>Short communication</ce:textfn></ce:dochead><ce:title>Evaluation of compost and straw mulching on soil-loss characteristics in erosion plots of potatoes in Prince Edward Island, Canada</ce:title><ce:author-group><ce:author><ce:given-name>Linnell</ce:given-name><ce:surname>Edwards</ce:surname><ce:cross-ref refid="AFF1"><ce:sup>a</ce:sup></ce:cross-ref></ce:author><ce:author><ce:given-name>J.R</ce:given-name><ce:surname>Burney</ce:surname><ce:cross-ref refid="AFF2"><ce:sup>b</ce:sup></ce:cross-ref></ce:author><ce:author><ce:given-name>G</ce:given-name><ce:surname>Richter</ce:surname><ce:cross-ref refid="AFF3"><ce:sup>c</ce:sup></ce:cross-ref></ce:author><ce:author><ce:given-name>A.H</ce:given-name><ce:surname>MacRae</ce:surname><ce:cross-ref refid="AFF1"><ce:sup>a</ce:sup></ce:cross-ref><ce:cross-ref refid="CORR1">*</ce:cross-ref><ce:e-address>edwardsl@em.agr.ca</ce:e-address></ce:author><ce:affiliation id="AFF1"><ce:label>a</ce:label><ce:textfn>Crops & Livestock Research Centre, P.O. Box 1210, Charlottetown, PEI, Canada C1A 7M8</ce:textfn></ce:affiliation><ce:affiliation id="AFF2"><ce:label>b</ce:label><ce:textfn>Biological Engineering Department, Dalhousie University, DalTech, Halifax, NS, Canada B3J 2X4</ce:textfn></ce:affiliation><ce:affiliation id="AFF3"><ce:label>c</ce:label><ce:textfn>Physical Geography Department, Trier University, D-54286 Trier, Germany</ce:textfn></ce:affiliation><ce:correspondence id="CORR1"><ce:label>*</ce:label><ce:text>Corresponding author. Tel: +1-902-566-6871; fax: +1-902-566-6821</ce:text></ce:correspondence></ce:author-group><ce:date-received day="13" month="7" year="1999"></ce:date-received><ce:date-revised day="2" month="3" year="2000"></ce:date-revised><ce:date-accepted day="28" month="3" year="2000"></ce:date-accepted><ce:abstract><ce:section-title>Abstract</ce:section-title><ce:abstract-sec><ce:simple-para>The intensive use of Prince Edward Island (PEI) farmland for potato (<ce:italic>Solanum tuberosum</ce:italic> L.) production draws concern because of soil physical degradation under the intense tillage and other heavy traffic associated with the mechanisation of this crop, and the resulting vulnerability of sloping fields to hydraulic erosion. Growing public consciousness and pressure in favour of sustainable agriculture have engendered farmer interest in a possible place for commercial farm by-products in commercial cropping. Using existing natural erosion plots in PEI, the effects of compost amendment and straw mulching were assessed in terms of soil loss and soil physical condition on a fine sandy loam (Orthic Podzol). The treatment materials are local by-products of potato farming systems, and were used for an insight into the likelihood of sustainable commercial use. Compost had no effect on soil loss. Mulching reduced soil loss by almost 50%. Both treatments increased soil water content by 6–7%. Among the treatment effects on soil physical characteristics, soil penetration resistance below the root zone was reduced almost 20%; and, in the third year of the study, soil aggregate stability increased 7% with compost. Shear strength showed a strong (<ce:italic>p</ce:italic>≤0.05) regression relationship (<ce:italic>R</ce:italic><ce:sup>2</ce:sup>=0.835) with bulk density.</ce:simple-para></ce:abstract-sec></ce:abstract><ce:keywords class="keyword" xml:lang="en"><ce:section-title>Keywords</ce:section-title><ce:keyword><ce:text>Soil erosion</ce:text></ce:keyword><ce:keyword><ce:text>Erosion plots</ce:text></ce:keyword><ce:keyword><ce:text>Compost amendment</ce:text></ce:keyword><ce:keyword><ce:text>Mulching</ce:text></ce:keyword><ce:keyword><ce:text>Soil structure</ce:text></ce:keyword></ce:keywords></head></converted-article></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Evaluation of compost and straw mulching on soil-loss characteristics in erosion plots of potatoes in Prince Edward Island, Canada</title></titleInfo><titleInfo type="alternative" lang="en" contentType="CDATA"><title>Evaluation of compost and straw mulching on soil-loss characteristics in erosion plots of potatoes in Prince Edward Island, Canada</title></titleInfo><name type="personal"><namePart type="given">Linnell</namePart><namePart type="family">Edwards</namePart><affiliation>Crops & Livestock Research Centre, P.O. Box 1210, Charlottetown, PEI, Canada C1A 7M8</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">J.R</namePart><namePart type="family">Burney</namePart><affiliation>Biological Engineering Department, Dalhousie University, DalTech, Halifax, NS, Canada B3J 2X4</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">G</namePart><namePart type="family">Richter</namePart><affiliation>Physical Geography Department, Trier University, D-54286 Trier, Germany</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">A.H</namePart><namePart type="family">MacRae</namePart><affiliation>E-mail: edwardsl@em.agr.ca</affiliation><affiliation>Crops & Livestock Research Centre, P.O. Box 1210, Charlottetown, PEI, Canada C1A 7M8</affiliation><description>Corresponding author. Tel: +1-902-566-6871; fax: +1-902-566-6821</description><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="brief-communication" displayLabel="Short communication"></genre><originInfo><publisher>ELSEVIER</publisher><dateIssued encoding="w3cdtf">2000</dateIssued><dateModified encoding="w3cdtf">2000-03-02</dateModified><copyrightDate encoding="w3cdtf">2000</copyrightDate></originInfo><language><languageTerm type="code" authority="iso639-2b">eng</languageTerm><languageTerm type="code" authority="rfc3066">en</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType></physicalDescription><abstract lang="en">The intensive use of Prince Edward Island (PEI) farmland for potato (Solanum tuberosum L.) production draws concern because of soil physical degradation under the intense tillage and other heavy traffic associated with the mechanisation of this crop, and the resulting vulnerability of sloping fields to hydraulic erosion. Growing public consciousness and pressure in favour of sustainable agriculture have engendered farmer interest in a possible place for commercial farm by-products in commercial cropping. Using existing natural erosion plots in PEI, the effects of compost amendment and straw mulching were assessed in terms of soil loss and soil physical condition on a fine sandy loam (Orthic Podzol). The treatment materials are local by-products of potato farming systems, and were used for an insight into the likelihood of sustainable commercial use. Compost had no effect on soil loss. Mulching reduced soil loss by almost 50%. Both treatments increased soil water content by 6–7%. Among the treatment effects on soil physical characteristics, soil penetration resistance below the root zone was reduced almost 20%; and, in the third year of the study, soil aggregate stability increased 7% with compost. Shear strength showed a strong (p≤0.05) regression relationship (R2=0.835) with bulk density.</abstract><note type="content">Section title: Short communication</note><note type="content">Fig. 1: Relationship between shear strength and bulk density in (soil cores) induced by compost and mulching treatments.</note><note type="content">Table 1: Effect of compost amendment on soil-loss characteristics of erosion plotsa of potatoes (mean values: 1996–98)</note><note type="content">Table 2: Effect of straw mulching on soil-loss characteristics of erosion plotsa of potatoes (mean values: 1996–98)</note><subject lang="en"><genre>Keywords</genre><topic>Soil erosion</topic><topic>Erosion plots</topic><topic>Compost amendment</topic><topic>Mulching</topic><topic>Soil structure</topic></subject><relatedItem type="host"><titleInfo><title>Agriculture, Ecosystems and Environment</title></titleInfo><titleInfo type="abbreviated"><title>AGEE</title></titleInfo><genre type="journal">journal</genre><originInfo><dateIssued encoding="w3cdtf">200011</dateIssued></originInfo><identifier type="ISSN">0167-8809</identifier><identifier type="PII">S0167-8809(00)X0069-2</identifier><part><date>200011</date><detail type="volume"><number>81</number><caption>vol.</caption></detail><detail type="issue"><number>3</number><caption>no.</caption></detail><extent unit="issue pages"><start>163</start><end>296</end></extent><extent unit="pages"><start>217</start><end>222</end></extent></part></relatedItem><identifier type="istex">66D67C7535E97FFD13B5F9F4552092649BD17466</identifier><identifier type="DOI">10.1016/S0167-8809(00)00162-6</identifier><identifier type="PII">S0167-8809(00)00162-6</identifier><accessCondition type="use and reproduction" contentType="copyright">©2000 Elsevier Science B.V.</accessCondition><recordInfo><recordContentSource>ELSEVIER</recordContentSource><recordOrigin>Elsevier Science B.V., ©2000</recordOrigin></recordInfo></mods></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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