{"type": "FeatureCollection", "features": [{"id": "10.1007/s11104-010-0626-5", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:14:48Z", "type": "Journal Article", "created": "2010-11-11", "title": "Does the combined application of organic and mineral nutrient sources influence maize productivity? A meta-analysis", "description": "The combined application of organic resources (ORs) and mineral fertilizers is increasingly gaining recognition as a viable approach to address soil fertility decline in sub-Saharan Africa (SSA). We conducted a meta-analysis to provide a comprehensive and quantitative synthesis of conditions under which ORs, N fertilizers, and combined ORs with N fertilizers positively or negatively influence Zea mays (maize) yields, agronomic N use efficiency and soil organic C (SOC) in SSA. Four OR quality classes were assessed; classes I (high quality) and II (intermediate quality) had >2.5% N while classes III (intermediate quality) and IV (low quality) had <2.5% N and classes I and III had <4% polyphenol and <15% lignin. On the average, yield responses over the control were 60%, 84% and 114% following the addition of ORs, N fertilizers and ORs + N fertilizers, respectively. There was a general increase in yield responses with increasing OR quality and OR-N quantity, both when ORs were added alone or with N fertilizers. Surprisingly, greater OR residual effects were observed with high quality ORs and declined with decreasing OR quality. The greater yield responses with ORs + N fertilizers than either resource alone were mostly due to extra N added and not improved N utilization efficiency because negative interactive effects were, most often, observed when combining ORs with N fertilizers. Additionally, their agronomic N use efficiency was not different from sole added ORs but lower than N fertilizers added alone. Nevertheless, positive interactive effects were observed in sandy soils with low quality ORs whereas agronomic use efficiency was greater when smaller quantities of N were added in all soils. Compared to sole added ORs, yield responses for the combined treatment increased with decreasing OR quality and greater yield increases were observed in sandy (68%) than clayey soils (25%). While ORs and ORs + N fertilizer additions increased SOC by at least 12% compared to the control, N fertilizer additions were not different from control suggesting that ORs are needed to increase SOC. Thus, the addition of ORs will likely improve nutrient storage while crop yields are increased and more so for high quality ORs. Furthermore, interactive effects are seldom occurring, but agronomic N use efficiency of ORs + N fertilizers were greater with low quantities of N added, offering potential for increasing crop productivity.", "keywords": ["Soil nutrients", "0106 biological sciences", "Soil management", "Soil Science", "Plant Science", "fertilidad del suelo", "maize", "Soil fertility", "Soil degradation", "Agronomic n use efficiency", "01 natural sciences", "Soil quality", "ma\u00edz", "Soil", "abonos npk", "npk fertilizers", "Field Scale", "2. Zero hunger", "Soil organic matter", "Sub-Saharan Africa", "soil fertility", "04 agricultural and veterinary sciences", "Interactive effects", "15. Life on land", "Organic resource quality", "Yield response", "Integrated soil fertility management", "Meta-analysis", "Zea maize", "Soil conservation", "Fertilization", "0401 agriculture", " forestry", " and fisheries"]}, "links": [{"href": "https://doi.org/10.1007/s11104-010-0626-5"}, {"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/s11104-010-0626-5", "name": "item", "description": "10.1007/s11104-010-0626-5", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s11104-010-0626-5"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2010-11-12T00:00:00Z"}}, {"id": "10.1016/j.jaridenv.2016.01.010", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:16:25Z", "type": "Journal Article", "created": "2016-02-27", "title": "Soil Microbial Functional Capacity And Diversity In A Millet-Shrub Intercropping System Of Semi-Arid Senegal", "description": "Abstract   A few species of shrubs grow with dryland row crops in farmers\u2019 fields throughout the Sahel and can significantly increase crop yield. The presence of shrub roots and litter inputs should have implications for soil nutrient pool sizes but there is limited information on the interactions of these shrubs with microbial communities involved in biogeochemical processes. Therefore, the objective of this study was to determine the microbial composition and functional capacity of soil from the rooting zone of pearl millet (Pennisetum glaucum) grown in the presence or absence of the shrub Piliostigma reticulatum in Senegal. Soil samples were collected from a long-term field study where millet was cultivated alone or intercropped with P.\u00a0reticulatum with annual incorporation of coppiced shrub residues. Higher nutrient contents and distinct differences in microbial communities (DGGE profiles) were found between soils from beneath the canopy compared to soil outside the influence of shrubs. The catabolic response profile (MicroResp\u2122) showed that the soil microbial community at both shrub and non-shrub sampling locations, metabolized a wide range of substrates. Trehalose that can work as a signaling molecule was more rapidly degraded in the rooting zone of millet growing in the presence of P.\u00a0reticulatum over millet\u00a0alone. Urease, arylsulfatase and dehydrogenase activities in the millet root zone soil were higher when intercropped with P.\u00a0reticulatum which indicates enhanced potential of biogeochemical processes to proceed in the presence of this shrub. It is concluded that the native shrub P.\u00a0reticulatum promotes a more diverse and active microbial community in the rooting zone of millet and further indicates greater potential to perform decomposition and mineralize nutrients.", "keywords": ["[SDV.SA]Life Sciences [q-bio]/Agricultural sciences", "580", "2. Zero hunger", "[SDV.SA] Life Sciences [q-bio]/Agricultural sciences", "Sub-Saharan Africa", "16S- and ITS-DGGE profiling", "04 agricultural and veterinary sciences", "MicroResp\u2122", "15. Life on land", "Piliostigma reticulatum", "630", "6. Clean water", "[SDE.BE] Environmental Sciences/Biodiversity and Ecology", "MicroResp (TM)", "16S-and ITS-DGGE profiling", "Pennisetum glaucum (L.) R. Br", "0401 agriculture", " forestry", " and fisheries", "[SDE.BE]Environmental Sciences/Biodiversity and Ecology", "Pennisetum glaucum (L.) R. Br.", "Soil enzyme activity"]}, "links": [{"href": "https://doi.org/10.1016/j.jaridenv.2016.01.010"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Arid%20Environments", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.jaridenv.2016.01.010", "name": "item", "description": "10.1016/j.jaridenv.2016.01.010", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.jaridenv.2016.01.010"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-06-01T00:00:00Z"}}, {"id": "10.1080/02571862.2005.10634705", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:18:07Z", "type": "Journal Article", "created": "2013-01-15", "title": "Ecosystem Carbon Storage Under Different Land Uses In Three Semi-Arid Shrublands And A Mesic Grassland In South Africa", "description": "Carbon (C) storage in biomass and soils is a function of climate, vegetation type, soil type and land management. Carbon storage was examined in intact indigenous vegetation and under different land uses in thicket (250\u2013400 mm mean annual precipitation), xeric shrubland (350 mm), karoo (250 mm), and grassland (900\u20131200 mm). Carbon storage was as follows: (i) mean soil C (0\u201350 cm): thicket (T) = grassland (G) > xeric shrubland on Dwyka sediments (XS) > xeric shrubland on dolerite (XSD) > karoo (K) (168, 164, 65, 34 & 26 t ha\u22121, respectively); (ii) mean root C: T > G > XS = XSD (25.4, 11.4, 7.2 & 7.1 t ha\u22121); (iii) mean above-ground C including leaf litter: T>XS>G>K> XSD (51.6, 12.9, 2.0, 1.7 & 1.51 ha\u22121). Carbon stocks in intact indigenous vegetation were related more to woodiness of vegetation and frequency of fire than to climate. Biomass C was greatest in woody thicket and soil C stocks were greatest in thicket and grassland. Total C storage of 245 t ha\u22129 in thicket is exceptionally high for a semi-arid...", "keywords": ["580", "2. Zero hunger", "biomass", "Sub-Saharan Africa", "Eastern Hemisphere", "World", "land management", "land use", "04 agricultural and veterinary sciences", "15. Life on land", "South Africa", "carbon cycle", "Africa", "0401 agriculture", " forestry", " and fisheries", "Arida", "Southern Africa"]}, "links": [{"href": "https://doi.org/10.1080/02571862.2005.10634705"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/South%20African%20Journal%20of%20Plant%20and%20Soil", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1080/02571862.2005.10634705", "name": "item", "description": "10.1080/02571862.2005.10634705", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1080/02571862.2005.10634705"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-01-01T00:00:00Z"}}, {"id": "10.1080/02571862.2007.10634780", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:18:07Z", "type": "Journal Article", "created": "2013-01-15", "title": "Depletion Of Nutrients In Adjacent Crop Landsby Eucalyptus Camaldulensis", "description": "Fine root distribution of Eucalyptus camaldulensis Dehnh and effects on soil fertility attributes were studied under field conditions in Badessa, Eastern Ethiopia. Soil samples were collected from inside the stand, edge of the stand and 10 m away from the stand at two depths viz., surface (0\u201315 cm) and subsurface (30\u201345 cm) and analysed for fine root biomass and nutrients. Fine root biomasses (root length density (RLD) and root weight density (RWD)) from within the stand and away from the stand were similar. However, RLD and RWD in the surface soils were 50\u201370% and 28\u201375% higher than those in the immediate subsurface soils, respectively, at all distances. The organic carbon (C), total nitrogen (N), available phosphorus (P) and exchangeable potassium (K+) contents of surface and subsurface soils inside the stand were 28\u201360% and 23\u201332% higher than those away from the stand, respectively. Surface soils had significantly higher organic C, total N, available P and exchangeable K+ than subsurface soils due to d...", "keywords": ["0106 biological sciences", "2. Zero hunger", "Eucalyptus", "biomass", "soil nutrient", "Sub-Saharan Africa", "550", "organic carbon", "potassium", "soil fertility", "04 agricultural and veterinary sciences", "15. Life on land", "fine root", "East Africa", "01 natural sciences", "nitrogen", "Africa", "0401 agriculture", " forestry", " and fisheries", "Eucalyptus camaldulensis", "Ethiopia", "phosphorus"]}, "links": [{"href": "https://doi.org/10.1080/02571862.2007.10634780"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/South%20African%20Journal%20of%20Plant%20and%20Soil", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1080/02571862.2007.10634780", "name": "item", "description": "10.1080/02571862.2007.10634780", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1080/02571862.2007.10634780"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-01-01T00:00:00Z"}}, {"id": "10.18167/DVN1/VPOCHN", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:19:50Z", "type": "Dataset", "title": "Data for \"Mulch application as the overarching factor explaining increase in soil organic carbon stocks under conservation agriculture in two 8-year-old experiments in Zimbabwe\"", "description": "These are the raw data of the paper 'Mulch application as the overarching factor explaining increase in soil organic carbon stocks under conservation agriculture in two 8-year-old experiments in Zimbabwe\u201d authored by Armwell Shumba, Regis Chikowo, Christian Thierfelder, Marc Corbeels, Johan Six, R\u00e9mi Cardinael", "keywords": ["2. Zero hunger", "sub-Saharan Africa", "P36 - \u00c9rosion", " conservation et r\u00e9cup\u00e9ration des sols", "F07 - Travail du sol", "Agricultural Sciences", "F08 - Syst\u00e8mes et modes de culture", "P35 - Fertilit\u00e9 du sol", "P30 - Sciences et am\u00e9nagement du sol", "15. 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