{"type": "FeatureCollection", "features": [{"id": "10.1007/s11104-006-9041-3", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:14:52Z", "type": "Journal Article", "created": "2006-08-14", "title": "Integrated Pearl Millet Management In The Sahel: Effects Of Legume Rotation And Fallow Management On Productivity And Striga Hermonthica Infestation", "description": "Increasing population density and food needs in the Sahel are major drivers behind the conversion of land under natural vegetation to arable land. Intensification of agriculture is a necessity for farmers to produce enough food. As manure is scarce and fertilizers expensive, this study looks into the potential role of cowpea (Vigna unguiculata L.) and short duration fallow in maintaining soil fertility and productivity and in reducing the major weed problem Striga hermonthica (Del.) Benth. The research was carried out \u2018on-farm\u2019 in a traditional millet (Pennisetum glaucum (L.) R.Br.) growing area in the Malian Sahel, near Bankass. The four year experiment combined 0, 2, 5, and 7\u00a0years of preceding fallow with (i) 4\u00a0years of millet, (ii) 1\u00a0year of cowpea\u00a0+\u00a03\u00a0years of millet, and (iii) 1\u00a0year of cowpea\u00a0+\u00a03\u00a0years of millet/cowpea inter-cropping. Total millet production (4\u00a0years) was 1440\u00a0kg\u00a0ha\u22121 for all systems with 2, 5 or 7\u00a0years of preceding fallow against 1180\u00a0kg\u00a0ha\u22121 for systems without fallow. Cowpea grain production showed no significant differences between fallow treatments. Over 4\u00a0years, all cropping systems produced similar total amounts of millet grain, implying that the millet \u2018lost\u2019 during the year with a pure cowpea crop in treatments (ii) and (iii) was compensated within three years, while the cowpea grain production was an additional benefit. Such compensation was however not observed for increasing number of preceding fallow years, showing that there is no additional production benefit in 5\u20137\u00a0years of fallow as compared to 2\u00a0years. The soil organic carbon content decreased more slowly in treatments with a cowpea pure crop in 1998 than in the millet pure crop, while overall higher contents were observed after preceding fallow also after four years of cropping. Striga hermonthica infestation decreased linearly with duration of preceding fallow, but also after seven years of fallow and one year of cowpea the hemi-parasitic weed still re-appeared. Overall the intensification through a cowpea pure crop and cowpea intercrop in these millet-based systems improved production and a number of other characteristics of the system, making it more viable.", "keywords": ["nutrient flows", "2. Zero hunger", "0106 biological sciences", "NRS", "soil fertility", "continuous cultivation", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "nitrogen", "semiarid tropics", "cowpea", "ADLIB-ART-2493", "systems", "0401 agriculture", " forestry", " and fisheries", "sorghum", "west-africa", "crop productivity"]}, "links": [{"href": "https://doi.org/10.1007/s11104-006-9041-3"}, {"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/s11104-006-9041-3", "name": "item", "description": "10.1007/s11104-006-9041-3", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s11104-006-9041-3"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-08-01T00:00:00Z"}}, {"id": "10.2307/3237027", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:20:18Z", "type": "Journal Article", "created": "2006-05-07", "title": "Nutrient Supply In Undrained And Drained Calthion Meadows", "description": "<p>Abstract.  Plant species\uffe2\uff80\uff90rich Calthion meadows on mesotrophic fen peat soil extensively cut for hay are among the endangered semi\uffe2\uff80\uff90natural vegetation types in northwestern Europe. They are often badly affected by lowering the groundwater table (drainage) and fertilization.</p><p>In a comparative study of an undrained site with a Calthion meadow and an adjacent drained site, availability of N, P and K was biologically assessed under field conditions (for two years) as well as in a greenhouse (for 18 weeks) by measuring shoot responsiveness. Also, experimental wetting of intact turf samples taken from both sites was applied in order to study the interaction between nutrient supply and anaerobic soil conditions. It was concluded that the above\uffe2\uff80\uff90ground phytomass yield in the undrained site was restricted by a major shortage of N\uffe2\uff80\uff90supply and a moderate shortage of K\uffe2\uff80\uff90supply by the fen peat soil. The above\uffe2\uff80\uff90ground phytomass yield of the drained site was only reduced by a strongly limited supply of K by the soil. The extent of K\uffe2\uff80\uff90deficiency was larger for the drained site. No P\uffe2\uff80\uff90deficiency was observed in any of the drained or undrained sites. Rewetting turf samples, taken from the drained site, did not change above\uffe2\uff80\uff90ground phytomass yields, suggesting that nutrient supplies were not affected by rewetting. Leaching has likely resulted in a strong reduction of K\uffe2\uff80\uff90supply in the drained site. It is assumed that a shortage in K\uffe2\uff80\uff90supply from the peat soil may have become an important environmental constraint for characteristic plant species of Calthion meadows. This may hamper the development of this meadow type on drained peat soils after rewetting by groundwater discharge.</p>", "keywords": ["DYNAMICS", "0106 biological sciences", "NRS", "restoration", "GRASSLAND", "LIMITATION", "GROUNDWATER", "fen peat", "15. Life on land", "01 natural sciences", "SOIL", "VEGETATION PATTERNS", "ADLIB-ART-1990", "fertilization", "ITC-ISI-JOURNAL-ARTICLE", "FERTILIZER APPLICATION", "plant species richness", "macronutrient deficiency", "COMMUNITIES", "drainage", "management", "SEDIMENTS", "FENS"], "contacts": [{"organization": "JA Inberg, D. M. Pegtel, I.C. van Duren, BA Aerts,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.2307/3237027"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Vegetation%20Science", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.2307/3237027", "name": "item", "description": "10.2307/3237027", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.2307/3237027"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1997-12-01T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=NRS&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=NRS&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=NRS&", "hreflang": "en-US"}, {"rel": "last", "type": "application/geo+json", "title": "items (last)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=NRS&offset=2", "hreflang": "en-US"}], "numberMatched": 2, "numberReturned": 2, "distributedFeatures": [], "timeStamp": "2026-05-25T00:04:05.263296Z"}