{"type": "FeatureCollection", "features": [{"id": "10.1007/s11104-011-0870-3", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-26T16:16:14Z", "type": "Journal Article", "created": "2011-07-05", "title": "Biochar Adsorbed Ammonia Is Bioavailable", "description": "Biochar is produced as a by-product of the low temperature pyrolysis of biomass during bioenergy extraction and its incorporation into soil is of global interest as a potential carbon sequestration tool. Biochar influences soil nitrogen transformations and its capacity to take up ammonia is well recognized. Anthropogenic emissions of ammonia need to be mitigated due to negative environmental impacts and economic losses. Here we use an isotope of nitrogen to show that ammonia-N adsorbed by biochar is stable in ambient air, but readily bioavailable when placed in the soil. When biochars, containing adsorbed 15N labelled ammonia, were incorporated into soil the 15N recovery by roots averaged 6.8% but ranged from 26.1% to 10.9% in leaf tissue due to differing biochar properties with plant 15N recovery greater when acidic biochars were used to capture ammonia. Recovery of 15N as total soil nitrogen (organic+inorganic) ranged from 45% to 29% of 15N applied. We provide a proof of concept for a synergistic mitigation option where anthropogenic ammonia emissions could be captured using biochar, and made bioavailable in soils, thus leading to nitrogen capture by crops, while simultaneously sequestering carbon in soils.", "keywords": ["ryegrass", "550", "ANZSRC::31 Biological sciences", "ANZSRC::0703 Crop and Pasture Production", "ANZSRC::050301 Carbon Sequestration Science", "ANZSRC::30 Agricultural", "04 agricultural and veterinary sciences", "540", "ammonia", "01 natural sciences", "7. Clean energy", "nitrogen", "veterinary and food sciences", "13. Climate action", "ANZSRC::0503 Soil Sciences", "ANZSRC::41 Environmental sciences", "0401 agriculture", " forestry", " and fisheries", "biochar", "ANZSRC::070304 Crop and Pasture Biomass and Bioproducts", "N stable isotope", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1007/s11104-011-0870-3"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Plant%20and%20Soil", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s11104-011-0870-3", "name": "item", "description": "10.1007/s11104-011-0870-3", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s11104-011-0870-3"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-07-06T00:00:00Z"}}, {"id": "10.1007/s11104-005-5691-9", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-26T16:16:08Z", "type": "Journal Article", "created": "2005-11-16", "title": "Uptake Of Selenium And Its Antioxidant Activity In Ryegrass When Applied As Selenate And Selenite Forms", "description": "Selenium (Se) is an essential micronutrient for animal and human nutrition, but whether it is essential to plants remains controversial. However, there are increasing experimental evidences that indicate a protective role of Se against the oxidative stress in higher plants through Se-dependent glutathione peroxidase (GSH-Px) activity. The effects of the Se chemical forms, selenite and selenate, the rate of their application on shoot Se concentration and their influence on the antioxidative system of ryegrass (Lolium perenne cv. Aries), through the measurement of GSH-Px activity and lipid peroxidation, were evaluated in an Andisol of Southern Chile. Moreover, a soil\u2013plant relationship for Se was determined and a simple method to extract available Se from acid soils is proposed. In a 55-day experiment ryegrass seeds were sown in pots and soil was treated with sodium selenite or sodium selenate (0\u201310 mg Se  kg\u22121). The results showed that the Se concentration in shoots increased with the application of both selenite and selenate. However, the highest shoot Se concentrations were obtained in selenate-treated plants. For both sources of Se, there was a significant positive correlation between the shoot Se concentration and the GSH-Px activity; and the Se-dependence of this enzymatic activity was related especially with the chemical form of applied Se rather than the Se concentration in plant tissues. Furthermore, the lipid peroxidation, as measured by Thiobarbituric Acid Reactive Substances (TBARS), decreased at low levels of shoot Se concentration, reaching the lowest level at approximately 20 mg Se  kg\u22121 in plants and then increased steadily above this level. In addition, the acid extraction method used to evaluate available Se in soil showed a positive good correlation between soil Se and shoot Se concentrations irrespective of chemical form of Se applied.", "keywords": ["0106 biological sciences", "Selenium", "ryegrass", "antioxidant activity", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "01 natural sciences", "Selenium; antioxidant activity; ryegrass"]}, "links": [{"href": "https://doi.org/10.1007/s11104-005-5691-9"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Plant%20and%20Soil", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s11104-005-5691-9", "name": "item", "description": "10.1007/s11104-005-5691-9", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s11104-005-5691-9"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-10-01T00:00:00Z"}}, {"id": "10.1007/s11104-010-0345-y", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-26T16:16:12Z", "type": "Journal Article", "created": "2010-03-24", "title": "Plant Availability Of Soil Selenate Additions And Selenium Distribution Within Wheat And Ryegrass", "description": "Selenate fertilization is an effective way to secure selenium (Se) nutrition in Se-poor areas but the cycling of the added selenate in the soil-plant system requires further clarification. We examined the Se uptake efficiency of wheat and ryegrass and Se distribution within these plants in two pot experiments. The behaviour of added selenate in a sand soil under wheat was monitored by sequential extractions during a ten-week growing period. In addition, the relationship between Se uptake of ryegrass and the salt extractable and ligand exchangeable Se in a sand and silty clay soil were studied. The added selenate remained mainly salt soluble in the soil throughout the monitoring. Se uptake by wheat comprised 12% of the soluble Se pool in soil and extended over the whole period of growth. In wheat, over 50% of Se accumulated in grains. The Se uptake of ryegrass comprised, on average, 40% of the soil salt soluble Se. In ryegrass, over 80% of the Se accumulated in roots. The distribution pattern of Se in plants can clearly have a major influence on both the Se cycle in soil and the nutritional efficiency of Se fertilization. The simple salt extraction showed fertilization-induced changes in the soluble soil Se pool, whereas the ligand exchangeable Se fraction reflected the difference in the nonlabile Se status between the two soils.", "keywords": ["0106 biological sciences", "2. Zero hunger", "ryegrass", "raihein\u00e4t", "nutrient uptake", "selenaatti", "fertilizer application", "04 agricultural and veterinary sciences", "01 natural sciences", "lannoitus", "630", "6. Clean water", "uutto", "seleeni", "wheat", "ravinteiden otto", "extraction", "kasvien ravinteiden otto", "0401 agriculture", " forestry", " and fisheries", "Ka", "vehn\u00e4", "uuttomenetelm\u00e4t", "selenium"], "contacts": [{"organization": "Keskinen, Riikka, Turakainen, Marja, Hartikainen, Helin\u00e4,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1007/s11104-010-0345-y"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Plant%20and%20Soil", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s11104-010-0345-y", "name": "item", "description": "10.1007/s11104-010-0345-y", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s11104-010-0345-y"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2010-03-25T00:00:00Z"}}, {"id": "10.1016/j.cropro.2008.12.002", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-26T16:17:15Z", "type": "Journal Article", "created": "2008-12-28", "title": "Weed Suppression In Organic Pepper (Capsicum Annuum L.) With Winter Cover Crops", "description": "Abstract   Weed control is a major constraint for organic production around the world. Field studies were conducted in pepper (Capsicum annuum L.) from 2004 to 2006 at the Black Sea Agricultural Research Institute experimental field in Turkey to determine the weed suppressive effects of winter cover crops. Treatments consisted of ryegrass (Lolium multiflorum L.), oat (Avena sativa L.), rye (Secale cereale L.), wheat (Triticum aestivum L.), gelemen clover (Trifolium meneghinianum Clem.), Egyptian clover (Trifolium alexsandrinum L.), common vetch (Vicia sativa L.), hairy vetch (Vicia villosa Roth.) and a bare fallow with no cover crop. Weed density and total weed dry biomass were assessed at 14, 28, and 56 days after incorporation to quantify effects of cover crops during a subsequent pepper crop. Cover crop establishment was similar in both growing seasons and individual species produced in the range of 1800\u20133500\u00a0kg/ha biomass. Ryegrass produced the greatest biomass compared with other species. Weed dry biomass production just before cover crop incorporation varied with year and cover crop species. Hairy vetch, ryegrass, oat and common vetch were the most competitive cover crops based on total weed dry biomass. Hairy vetch was the most promising cover crop and reduced weed density by 73% and 70% at 28 and 56 DAI, respectively. Pepper yields were higher following all cover crops except Egyptian clover. The highest yield was obtained from hairy vetch plots in both years. This research indicates that cover crops such as hairy vetch, ryegrass, oat and common vetch could be used in integrated weed management programs to reduce weed infestation in organic pepper.", "keywords": ["2. Zero hunger", "CDA", "Hairy vetch", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "Vegetable", "15. Life on land", "Ryegrass", "Oat", "Weed control"]}, "links": [{"href": "https://doi.org/10.1016/j.cropro.2008.12.002"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Crop%20Protection", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.cropro.2008.12.002", "name": "item", "description": "10.1016/j.cropro.2008.12.002", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.cropro.2008.12.002"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2009-04-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2005.10.002", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-26T16:18:21Z", "type": "Journal Article", "created": "2005-11-09", "title": "Short And Long-Term Effects Of Elevated Co2 On Lolium Perenne Rhizodeposition And Its Consequences On Soil Organic Matter Turnover And Plant N Yield", "description": "It is still unclear whether elevated CO 2  increases plant root exudation and consequently affects the soil microbial biomass. The effects of elevated CO 2  on the fate of the C and nitrogen (N) contained in old soil organic matter pools is also unclear. In this study the short and long-term effects of elevated CO 2  on C and N pools and fluxes were assessed by growing isolated plants of ryegrass (Lolium perenne) in glasshouses at elevated and ambient atmospheric CO 2  and using soil from the New Zealand FACE site that had >4 years exposure to CO 2  enrichment. Using  14 CO 2  pulse labelling, the effects of elevated CO 2  on C allocation within the plant-soil system were studied. Under elevated CO 2  more root derived C was found in the soil and in the microbial biomass 48 h after labelling. The increased availability of substrate significantly stimulated soil microbial growth and acted as priming effect, enhancing native soil organic matter decomposition regardless of the mineral N supply. Despite indications of faster N cycling in soil under elevated CO 2 , N availability to plants stayed unchanged. Soil previously exposed to elevated CO 2  exhibited a higher N cycling rate but again there was no effect on plant N uptake. With respect to the difficulties of extrapolating glasshouse experiment results to the field, we concluded that the accumulation of coarse organic matter observed in the field under elevated CO 2  was probably not created by an imbalance between C and N but was likely to be due to more complex phenomena involving soil mesofauna and/or other nutrients limitations.", "keywords": ["580", "RHIZODEPOSITION", "2. Zero hunger", "RAY GRASS ANGLAIS", "PRIMING EFFECT", "15N", "RYEGRASS", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "[SDV.SA.SDS]Life Sciences [q-bio]/Agricultural sciences/Soil study", "15. Life on land", "ELEVATED CO2", "[SDV.SA.SDS] Life Sciences [q-bio]/Agricultural sciences/Soil study"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2005.10.002"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Biology%20and%20Biochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.soilbio.2005.10.002", "name": "item", "description": "10.1016/j.soilbio.2005.10.002", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2005.10.002"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-06-01T00:00:00Z"}}, {"id": "10.3389/fnut.2016.00019", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-26T16:23:12Z", "type": "Journal Article", "created": "2016-06-16", "title": "Drivers Of Plant-Availability Of Phosphorous From Thermally Conditioned Sewage Sludge As Assessed By Isotopic Labeling", "description": "Urban sewage sludge is a potential source of phosphorus (P) for agriculture and represents an alternative way to recycle P as fertilizer. However, the use of thermally conditioned sewage sludge (TCSS) required an accurate assessment of its value as P-fertilizer. This work aimed at assessing the plant-availability of P from TCSS. Uptake of P by a mixture of ryegrass and fescue from TCSS and triple super phosphate (TSP) fertilizers was studied using (32)P-labeling technique in a greenhouse experiment. Phosphorus was applied at the rate of 50\u2009mg P kg(-1).We also conducted incubation experiments considering the same treatments to assess soil microbial respiration. Applications of TCSS and TSP increased plant P uptake that is related to the root P acquisition. The P taken up by plant from soil plant-available P was lower for control compared to TSP or TCSS that was attributed to the increase of root interception of soil P. The contribution of TSP to ryegrass nutrition (Pdff%) was 55% with 22% of the applied P which was taken up by plants (CPU%). The Pdff value for TCSS was 56% with 14% of fertilizer P recovery (CPU%). Shoot biomass and total P uptake from TCSS were lower than those from TSP. As a result, the agronomic effectiveness of TCSS calculated from Pdff value (in comparison with TSP treatment) was 102%, while the AE of TCSS estimated from CPU value (in % TSP) was 64%, which is attributed to microbial activity stimulation inducing P immobilization onto soil constituents and microbial biomass during plant growth. The high C/N ratio of TCSS stimulated soil microbial biomass that competes with plant roots to acquire nutrients, such as P. As a consequence, the P taken up from either native soil or TCSS decreased in similar proportions. The AE value calculated with Pdff% took into account these interactions between soil, plant, and microbial biomass, and is less dependent on operational conditions than the AE value calculated with %Precovery.", "keywords": ["[SDV.SA]Life Sciences [q-bio]/Agricultural sciences", "ryegrass", "recyclage des d\u00e9chets", "microbial P", "soil respiration", "7. Clean energy", "12. Responsible consumption", "ray-grass", "f\u00e9tuque", "waste recycling", "disponibilit\u00e9 en phosphore", "Nutrition", "580", "2. Zero hunger", "P immobilization", "[SDV.SA] Life Sciences [q-bio]/Agricultural sciences", "traitement des boues", "sewage sludge", "04 agricultural and veterinary sciences", "15. Life on land", "fertilizer", "6. Clean water", "plant-available P", "engrais", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "32P-labeling technique"]}, "links": [{"href": "https://doi.org/10.3389/fnut.2016.00019"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Frontiers%20in%20Nutrition", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3389/fnut.2016.00019", "name": "item", "description": "10.3389/fnut.2016.00019", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3389/fnut.2016.00019"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-06-16T00:00:00Z"}}, {"id": "56b8df43-79fb-4bf9-8162-f28329916780", "type": "Feature", "geometry": {"type": "Polygon", "coordinates": [[[12.09, 54.06], [12.09, 54.08], [12.11, 54.08], [12.11, 54.06], [12.09, 54.06]]]}, "properties": {"themes": [{"concepts": [{"id": "environment"}], "scheme": "https://standards.iso.org/iso/19139/resources/gmxCodelists.xml#MD_TopicCategoryCode"}, {"concepts": [{"id": "Bones"}, {"id": "Phosphate fertilizers"}, {"id": "Soil"}, {"id": "soil amendments"}, {"id": "Fractionation"}, {"id": "Rye"}, {"id": "grasses"}], "scheme": "AGROVOC Multilingual agricultural thesaurus"}, {"concepts": [{"id": "Boden"}], "scheme": "GEMET - INSPIRE themes, version 1.0"}], "license": "CC BY", "rights": "Restrictions applied to assure the protection of privacy or intellectual property, and any special restrictions or limitations or warnings on using the resource or metadata. (e.g. Reports, articles, papers, scientific and non-scientific works of any form, including tables, maps, or any other kind of output, in printed or electronic form, based in whole or in part on the data supplied, must contain an acknowledgement of the form: \u201cData re-used from the BonaRes Data Centre www.bonares.de. The \u201cRaw data P-XANES measurements\u201d were created as part of BonaRes INNOSOILPHOS research activities.\u201d Although every care has been taken in preparing and testing the data, BonaRes INNOSOILPHOS and BonaRes Data Centre cannot guarantee that the data are correct; neither does BonaRes INNOSOILPHOS and BonaRes Data Centre accept any liability whatsoever for any error, missing data or omission in the data, or for any loss or damage arising from its use. The BonaRes INNOSOILPHOS and BonaRes Data Centre will not be responsible for any direct or indirect use which might be made of the data.", "updated": "2020-11-24", "type": "Dataset", "created": "2017-02-01", "language": "ger", "title": "Raw data P-XANES measurements", "description": "Acceptability of novel bone char fertilizers depends on their P release but reactions at bone char surfaces and impacts to soil P speciation are insufficiently known. By sequential fractionation and synchrotron-based X-ray absorption near edge structure (XANES) spectroscopy we investigated whether and how the chemical composition of bone char particles has been altered in soil and, consequently, has affected the P speciation of amended soils. Therefore, two different kinds of bone char particles (BC, produced by pyrolysis of degreased animal bone chips at 800 \u00baC and BCplus, a BC enriched with reduced sulfur compounds) were manually separated from the soil at the end of two different experiments: \u201cincubation-leaching\u201d and \u201cryegrass cultivation\u201d. Sequential P-fractionation of amended soils showed P-enrichment in all fractions as compared to the control. The most P increase between all treatments significantly occurred in the NaOH-P and resin-P fractions in response to BCplus application in both, incubation-leaching and ryegrass cultivation experiments. This increase of the readily available P fraction in BCplus treated soils was confirmed by linear combination fitting (LCF) analysis on P K-edge XANES spectra of BCs particles and amended soils. The proportion of Ca-hydroxyapatite decreased, whereas the proportion of CaHPO4 increased in BCplus particles after amended soils had been incubated and leached and cropped by ryegrass. Based on P-XANES speciation as determined by LCF analysis, the proportion of inorganic Ca(H2PO4)2 increased in amended soils after BCplus application. These results indicated that soil amendment with BCplus particles leads to elevated P concentration and maintains more soluble P species than BC particles even after 230-days of ryegrass cultivation. Morshedizad, M., Panten, K., Klysubun, W., and Leinweber, P.: Bone char effects on soil: sequential fractionations and XANES spectroscopy, SOIL, 4, 23-35, https://doi.org/10.5194/soil-4-23-2018, 2018.\n\nThis is version1.1 of the data.\n5.11.2020: The data center has been informed about an error in the data: in the column \"signal\" a change in the decimal separator has been detected from line 722 on (first \".\" then \",\"). This has been fixed.", "formats": [{"name": "CSV"}], "keywords": ["Bones", "Phosphate fertilizers", "Soil", "soil amendments", "Fractionation", "Rye", "grasses", "Boden", "bone char", "XANES", "phosphorus", "soil", "phosphorus fractionation", "ryegrass cultivation"], "contacts": [{"name": "Mohsen Morshedizad", "organization": "University of Rostock", "position": "PhD", "roles": ["author"], "phones": [{"value": "0381/498 3132"}], "emails": [{"value": "mohsen.morshedizad@uni-rostock.de"}], "addresses": [{"deliveryPoint": [null], "city": "Rostock", "administrativeArea": "Mecklenburg-Vorpommern", "postalCode": null, "country": "Germany"}], "links": [{"href": null}]}, {"name": "Peter Leinweber", "organization": "University of Rostock", "position": "Head of Soil Science", "roles": ["projectLeader"], "phones": [{"value": "0381/498 3120"}], "emails": [{"value": "peter.leinweber@uni-rostock.de"}], "addresses": [{"deliveryPoint": [null], "city": "Rostock", "administrativeArea": "Mecklenburg-Vorpommern", "postalCode": null, "country": "Germany"}], "links": [{"href": null}]}, {"name": "BonaRes Data Centre", "organization": "Leibniz Centre for Agricultural Landscape Research (ZALF)", "position": "Research Platform 'Data'  - WG Geodata", "roles": ["publisher"], "phones": [{"value": "+49 33432 82 171"}], "emails": [{"value": "bonares-datenzentrum@zalf.de"}], "addresses": [{"deliveryPoint": ["Eberswalder Strasse 84"], "city": "M\u00fcncheberg", "administrativeArea": "Brandenburg", "postalCode": "15374", "country": "Germany"}], "links": [{"href": null}]}, {"organization": "University of Rostock", "roles": ["contributor"]}]}, "links": [{"href": "https://maps.bonares.de/mapapps/resources/apps/bonares/index.html?lang=en&doi=https://doi.org/10.20387/BonaRes-PDY6-HHGS", "rel": "download"}, {"rel": "self", "type": "application/geo+json", "title": "56b8df43-79fb-4bf9-8162-f28329916780", "name": "item", "description": "56b8df43-79fb-4bf9-8162-f28329916780", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/56b8df43-79fb-4bf9-8162-f28329916780"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"interval": ["2015-10-31T00:00:00Z", "2017-05-23T00:00:00Z"]}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=ryegrass&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=ryegrass&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=ryegrass&", "hreflang": "en-US"}, {"rel": "last", "type": "application/geo+json", "title": "items (last)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=ryegrass&offset=7", "hreflang": "en-US"}], "numberMatched": 7, "numberReturned": 7, "distributedFeatures": [], "timeStamp": "2026-06-27T09:14:32.052473Z"}