{"type": "FeatureCollection", "features": [{"id": "10.1080/02827580410024124", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:19:19Z", "type": "Journal Article", "created": "2004-05-27", "title": "Effect Of Wood Ash Fertilization On Soil Chemical Properties And Stand Nutrient Status And Growth Of Some Coniferous Stands In Finland", "description": "The effects of wood ash or wood ash plus nitrogen (N) fertilization on soil chemical properties, needle nutrient concentrations and tree growth were studied in five coniferous stands, aged 31\u201375 yrs, after 5 and 10 yrs. In each experiment 3 t ha\u22121 of loose wood ash was applied to three replicated plots (30\u00d730 m). In three of the experiments 120\u2013150 kg N ha\u22121 was applied together with the same wood ash (WAN). These three experiments also included a stand-specific fertilization (SSF) treatment, which consisted of 120, 150 or 180 kg N ha\u22121. Five years after wood ash or WAN application the pH increase in the humus layer was 1\u20131.7 pH-units and in the 0\u20135 cm mineral soil layer 0.3\u20130.4 pH-units. The increase was approximately the same 10 yrs after application, and was also associated with an increase in pH in the 5\u201310 cm mineral soil layer. Wood ash or WAN significantly increased both the total and extractable calcium and magnesium concentrations in the humus layer on all the sites. Wood ash or WAN had an increa...", "keywords": ["0106 biological sciences", "2. Zero hunger", "puuntuhka", "330", "Picea abies", "0401 agriculture", " forestry", " and fisheries", "Pinus sylvestris", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences"], "contacts": [{"organization": "Saarsalmi, A., M\u00e4lk\u00f6nen, E., Kukkola, M.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1080/02827580410024124"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Scandinavian%20Journal%20of%20Forest%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1080/02827580410024124", "name": "item", "description": "10.1080/02827580410024124", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1080/02827580410024124"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-06-01T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=puuntuhka&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=puuntuhka&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=puuntuhka&", "hreflang": "en-US"}, {"rel": "last", "type": "application/geo+json", "title": "items (last)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=puuntuhka&offset=1", "hreflang": "en-US"}], "numberMatched": 1, "numberReturned": 1, "distributedFeatures": [], "timeStamp": "2026-04-04T11:57:05.645469Z"}