{"type": "FeatureCollection", "features": [{"id": "10.1111/sum.13150", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-27T16:21:10Z", "type": "Journal Article", "created": "2024-12-09", "title": "Long\u2010term conservation tillage in organic farming maintains sandy loam soil functioning despite increased penetration resistance", "description": "Abstract<p>Conservation tillage is an attractive practice in organic farming; however, it requires more trafficking for weed management than conventional tillage. This scenario can lead to soil compaction below the tillage working depth. However, it is not clear whether long\uffe2\uff80\uff90term conservation tillage practices impair soil functions. Therefore, this study investigated whether long\uffe2\uff80\uff90term conservation tillage causes soil compaction and impairs water retention, gaseous exchange capability and microbial activity of the soil below the tillage working depth. A long\uffe2\uff80\uff90term (16\uffe2\uff80\uff89years) organic farming experiment consisting of conservation tillage (VST, shallow tillage to 7\uffe2\uff80\uff89cm depth) and conventional tillage (MP, mouldboard ploughing to 30\uffe2\uff80\uff89cm depth) was conducted on a sandy loam soil. Soil penetration resistance (PR), saturated hydraulic conductivity (SHC), water retention, gaseous exchange properties and microbial activity were determined in the 20\uffe2\uff80\uff9330\uffe2\uff80\uff89cm soil layer. The PR did not significantly differ between the tillage treatments at any depth; however, VST recorded 30%\uffe2\uff80\uff9363% higher PR values in the 10\uffe2\uff80\uff9330\uffe2\uff80\uff89cm soil layer. Among the measured soil properties, only microbial activity could yield a statistical difference between the two tillage practices. The water retention behaviour, plant available water capacity, SHC and relative gas diffusivity were very similar under both tillage treatments. The mean effective air\uffe2\uff80\uff90filled porosity (E\uffe2\uff80\uff90AFP) at pF 1.5 was 21% lower under VST than that under MP; however, the difference was reduced to 3% at pF 2. At field capacity, the E\uffe2\uff80\uff90AFP was approximately 14%\uffe2\uff80\uff94above the critical limit (10%) for plant growth\uffe2\uff80\uff94under both tillage practices. Air permeability was 76% and 57% higher under VST at pF 1.5 and 1.7, respectively, compared with MP. The microbial activity was 56% lower (p\uffe2\uff80\uff89=\uffe2\uff80\uff89.04) under VST than that under MP. Likewise, 31%, 65% and 34% higher microbial biomass carbon, microbial biomass nitrogen and dissolved organic carbon, respectively, were observed under MP compared with VST. These results indicated that despite higher penetration resistance, long\uffe2\uff80\uff90term conservation tillage did not limit water retention and aeration capability of soil in the 20\uffe2\uff80\uff9330\uffe2\uff80\uff89cm soil layer. However, long\uffe2\uff80\uff90term conservation tillage may induce vertical stratification of organic matter and microbial activity, which have implications for crop production.</p", "keywords": ["soil compaction", "soil organic carbon", "air permeability", "relative gas diffusivity", "shallow tillage", "air-filled porosity", "microbial activity", "water retention"]}, "links": [{"href": "https://doi.org/10.1111/sum.13150"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Use%20and%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/sum.13150", "name": "item", "description": "10.1111/sum.13150", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/sum.13150"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-10-01T00:00:00Z"}}, {"id": "10.17221/245/2014-pse", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-27T16:22:05Z", "type": "Journal Article", "created": "2018-02-10", "title": "Impact Of Tillage On Physical Characteristics In A Mollisol Of Northeast China", "description": "Soil management is aimed at the maintenance of optimal soil physical quality for crop production. In order to explore the effects of tillage practices on soil physical properties, a study was conducted to compare the effects of no tillage (NT), moldboard plow (MP) and ridge tillage (RT) on soil bulk density (BD), soil penetration resistance (SPR), soil water content (SWC), soil macroporosity (MAC) and soil air-filled porosity (AFP) in Northeast China. Results showed that both NT and RT led to significant BD increment than MP at 0-20 cm (P &lt; 0.05). Compared with MP, NT and RT increased SPR at the depths of 2.5-17.5 cm (P &lt; 0.05). SWC of 0-10 cm layer was significantly higher in NT and RT than MP soils (P &lt; 0.05). NT showed a significantly lower MAC than MP and RT at 0-20 cm soil depths (P &lt; 0.05). All AFP values were above the limit of 0.10 cm3/cm3 under all tillage treatments. RT improved the soil physical quality as evidenced by decreased BD and SPR, and increased SWC, MAC and AFP relative to NT.", "keywords": ["2. Zero hunger", "soil air-filled porosity", "Plant culture", "0401 agriculture", " forestry", " and fisheries", "soil water content", "04 agricultural and veterinary sciences", "15. Life on land", "soil macroporosity", "6. Clean water", "soil bulk density", "soil penetration resistance", "SB1-1110"], "contacts": [{"organization": "Wei Shuangshi, Xuewen Chen, Shuxia Jia, Xiao-Ping Zhang, Aizhen Liang,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.17221/245/2014-pse"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Plant%2C%20Soil%20and%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.17221/245/2014-pse", "name": "item", "description": "10.17221/245/2014-pse", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.17221/245/2014-pse"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2014-07-31T00:00:00Z"}}, {"id": "10.3390/land11020223", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-27T16:23:36Z", "type": "Journal Article", "created": "2022-02-03", "title": "Opportunities for Mitigating Soil Compaction in Europe\u2014Case Studies from the SoilCare Project Using Soil-Improving Cropping Systems", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Soil compaction (SC) is a major threat for agriculture in Europe that affects many ecosystem functions, such as water and air circulation in soils, root growth, and crop production. Our objective was to present the results from five short-term (&lt;5 years) case studies located along the north\u2013south and east\u2013west gradients and conducted within the SoilCare project using soil-improving cropping systems (SICSs) for mitigating topsoil and subsoil SC. Two study sites (SSs) focused on natural subsoil (\u02c325 cm) compaction using subsoiling tillage treatments to depths of 35 cm (Sweden) and 60 cm (Romania). The other SSs addressed both topsoil and subsoil SC (\u02c325 cm, Norway and United Kingdom; \u02c330 cm, Italy) using deep-rooted bio-drilling crops and different tillage types or a combination of both. Each SS evaluated the effectiveness of the SICSs by measuring the soil physical properties, and we calculated SC indices. The SICSs showed promising results\u2014for example, alfalfa in Norway showed good potential for alleviating SC (the subsoil density decreased from 1.69 to 1.45 g cm\u22121) and subsoiling at the Swedish SS improved root penetration into the subsoil by about 10 cm\u2014but the effects of SICSs on yields were generally small. These case studies also reflected difficulties in implementing SICSs, some of which are under development, and we discuss methodological issues for measuring their effectiveness. There is a need for refining these SICSs and for evaluating their longer-term effect under a wider range of pedoclimatic conditions.</p></article>", "keywords": ["2. Zero hunger", "S", "degree of compaction", "Soil Science", "straw incorporation", "Agriculture", "04 agricultural and veterinary sciences", "910", "15. Life on land", "6. 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Climate action", "tillage", "0401 agriculture", " forestry", " and fisheries", "S Agriculture (General)", "910 Geography & travel", "air-filled porosity", "550 Earth sciences & geology"]}, "links": [{"href": "http://www.mdpi.com/2073-445X/11/2/223/pdf"}, {"href": "https://pub.epsilon.slu.se/27668/1/piccoli-i-et-al-220502.pdf"}, {"href": "https://boris.unibe.ch/165197/1/Opportunities_for_Mitigating_Soil_Compaction_in_Europe_Case.pdf"}, {"href": "https://www.research.unipd.it/bitstream/11577/3462067/1/land-11-00223-v2.pdf"}, {"href": "https://rau.repository.guildhe.ac.uk/id/eprint/16542/1/land-11-00223-v2.pdf"}, {"href": "https://doi.org/10.3390/land11020223"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Land", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3390/land11020223", "name": "item", "description": "10.3390/land11020223", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3390/land11020223"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-02-02T00:00:00Z"}}, {"id": "11250/3007222", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-27T16:29:15Z", "type": "Journal Article", "created": "2022-02-03", "title": "Opportunities for Mitigating Soil Compaction in Europe\u2014Case Studies from the SoilCare Project Using Soil-Improving Cropping Systems", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Soil compaction (SC) is a major threat for agriculture in Europe that affects many ecosystem functions, such as water and air circulation in soils, root growth, and crop production. Our objective was to present the results from five short-term (&lt;5 years) case studies located along the north\u2013south and east\u2013west gradients and conducted within the SoilCare project using soil-improving cropping systems (SICSs) for mitigating topsoil and subsoil SC. Two study sites (SSs) focused on natural subsoil (\u02c325 cm) compaction using subsoiling tillage treatments to depths of 35 cm (Sweden) and 60 cm (Romania). The other SSs addressed both topsoil and subsoil SC (\u02c325 cm, Norway and United Kingdom; \u02c330 cm, Italy) using deep-rooted bio-drilling crops and different tillage types or a combination of both. Each SS evaluated the effectiveness of the SICSs by measuring the soil physical properties, and we calculated SC indices. The SICSs showed promising results\u2014for example, alfalfa in Norway showed good potential for alleviating SC (the subsoil density decreased from 1.69 to 1.45 g cm\u22121) and subsoiling at the Swedish SS improved root penetration into the subsoil by about 10 cm\u2014but the effects of SICSs on yields were generally small. These case studies also reflected difficulties in implementing SICSs, some of which are under development, and we discuss methodological issues for measuring their effectiveness. There is a need for refining these SICSs and for evaluating their longer-term effect under a wider range of pedoclimatic conditions.</p></article>", "keywords": ["bio-drilling crops", "ROOT-GROWTH", "Environmental Studies", "subsoiling", "PHYSICAL-PROPERTIES", "Soil Science", "Environmental Sciences & Ecology", "straw incorporation", "910", "CONSERVATION AGRICULTURE", "3301 Architecture", "soil penetration resistance", "4104 Environmental management", "degree of compaction; soil penetration resistance; relative normalised density; air-filled porosity; tillage; straw incorporation; bio-drilling crops; subsoiling; crop productivity", "relative normalised density", "GAS-TRANSPORT", "0502 Environmental Science and Management", "S Agriculture (General)", "910 Geography & travel", "PENETRATION RESISTANCE", "550 Earth sciences & geology", "crop productivity", "2. 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Climate action", "tillage", "0401 agriculture", " forestry", " and fisheries", "CLAY LOAM SOIL", "RISK-ASSESSMENT", "SUBSOIL COMPACTION", "Life Sciences & Biomedicine", "air-filled porosity"]}, "links": [{"href": "http://www.mdpi.com/2073-445X/11/2/223/pdf"}, {"href": "https://pub.epsilon.slu.se/27668/1/piccoli-i-et-al-220502.pdf"}, {"href": "https://boris.unibe.ch/165197/1/Opportunities_for_Mitigating_Soil_Compaction_in_Europe_Case.pdf"}, {"href": "https://www.research.unipd.it/bitstream/11577/3462067/1/land-11-00223-v2.pdf"}, {"href": "https://rau.repository.guildhe.ac.uk/id/eprint/16542/1/land-11-00223-v2.pdf"}, {"href": "https://doi.org/11250/3007222"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Land", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "11250/3007222", "name": "item", "description": "11250/3007222", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/11250/3007222"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-02-02T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=air-filled+porosity&f=json", "hreflang": "en-US"}, {"rel": "alternate", "type": "text/html", "title": "This document as HTML", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=air-filled+porosity&f=html", "hreflang": "en-US"}, {"rel": "collection", "type": "application/json", "title": "Collection URL", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main", "hreflang": "en-US"}, {"type": "application/geo+json", "rel": "first", "title": "items (first)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=air-filled+porosity&", "hreflang": "en-US"}, {"rel": "last", "type": "application/geo+json", "title": "items (last)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=air-filled+porosity&offset=4", "hreflang": "en-US"}], "numberMatched": 4, "numberReturned": 4, "distributedFeatures": [], "timeStamp": "2026-06-27T18:25:45.530064Z"}