{"type": "FeatureCollection", "features": [{"id": "10.1007/s00374-011-0539-3", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:14:45Z", "type": "Journal Article", "created": "2011-01-18", "title": "Effects Of Organic And Inorganic Fertilization On Soil Bacterial And Fungal Microbial Diversity In The Kabete Long-Term Trial, Kenya", "description": "The effects of crop manure and inorganic fertilizers on composition of microbial communities of central high land soils of Kenya are poorly known. For this reason, we have carried out a thirty-two-year-old long-term trial in Kabete, Kenya. These soils were treated with organic (maize stover (MS) at 10 t ha\u22121, farmyard manure (FYM) at 10 t ha\u22121) and inorganic fertilizers 120 kg N, 52.8 kg P (N2P2), N2P2 + MS, N2P2 + FYM, a control, and a fallow for over 30 years. We examined 16S rRNA gene and 28S rRNA gene fingerprints of bacterial and fungal diversity by PCR amplification and denaturing gradient gel electrophoresis separation, respectively. The PCR bacterial community structure and diversity were negatively affected by N2P2 and were more closely related to the bacterial structure in the soils without any addition (control) than that of soils with a combination of inorganic and organic or inorganic fertilizers alone. The effect on fungal diversity by N2P2 was different than the effect on bacterial diversity since the fungal diversity was similar to that of the N2P2 + FYM and N2P2 + MS-treated. However, soils treated with organic inputs clustered away from soils amended with inorganic inputs. Organic inputs had a positive effect on both bacterial and fungal diversity with or without chemical fertilizers. Results from this study suggested that total diversity of bacterial and fungal communities was closely related to agro-ecosystem management practices and may partially explain the yield differences observed between the different treatments.", "keywords": ["[SDV.SA]Life Sciences [q-bio]/Agricultural sciences", "Microbial diversity", "soil microorganisms", "engrais organique", "http://aims.fao.org/aos/agrovoc/c_27870", "Organic and inorganic amendments", "F08 - Syst\u00e8mes et modes de culture", "rendement des cultures", "630", "fertilisation", "biodiversit\u00e9", "http://aims.fao.org/aos/agrovoc/c_4592", "http://aims.fao.org/aos/agrovoc/c_36669", "http://aims.fao.org/aos/agrovoc/c_2018", "inorganic fertilizers", "http://aims.fao.org/aos/agrovoc/c_10795", "http://aims.fao.org/aos/agrovoc/c_34326", "fertility", "2. 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Life on land", "engrais min\u00e9ral", "http://aims.fao.org/aos/agrovoc/c_16367", "http://aims.fao.org/aos/agrovoc/c_4086", "0401 agriculture", " forestry", " and fisheries", "F04 - Fertilisation"]}, "links": [{"href": "https://doi.org/10.1007/s00374-011-0539-3"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biology%20and%20Fertility%20of%20Soils", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s00374-011-0539-3", "name": "item", "description": "10.1007/s00374-011-0539-3", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00374-011-0539-3"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-01-19T00:00:00Z"}}, {"id": "10.5424/sjar/2016142-8395", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:24:56Z", "type": "Journal Article", "created": "2016-06-01", "description": "<p>Agricultural systems where monoculture prevails are characterized by fertility losses and reduced contribution to ecosystem services. Including cover crops (CC) as part of an agricultural system is a promising choice in sustainable intensification of those demanding systems. We evaluated soil microbial functionality in cash crops in response to the inclusion of CC by analyzing soil microbial functions at two different periods of the agricultural year (cash crop harvest and CC desiccation) during 2013 and 2014. Three plant species were used as CC: oat (Avena sativa L.), vetch (Vicia sativa L.) and radish (Raphanus sativus L.) which were sown in two different mixtures of species: oat and radish mix (CC1) and oat, radish and vetch mix (CC2), with soybean monoculture and soybean/corn being the cash crops. The study of community level physiological profiles showed statistical differences in respiration of specific C sources indicating an improvement of catabolic diversity in CC treatments. Soil enzyme activities were also increased with the inclusion of CC mixtures, with values of dehydrogenase activity and fluorescein diacetate hydrolysis up to 38.1% and 35.3% higher than those of the control treatment, respectively. This research evidenced that CC inclusion promotes soil biological quality through a contribution of soil organic carbon, improving the sustainability of agrosystems. The use of a CC mixture of three plant species including the legume vetch increased soil biological processes and catabolic diversity, with no adverse effects on cash crop grain yield.</p>", "keywords": ["diversification", "Plantas de Cobertura", "Soil Microorganisms", "enzymes", "Agricultural environment and ecology", "microorganisms; soil functionality; sustainability; diversification; enzymes", "SUSTAINABILITY", "https://purl.org/becyt/ford/1.5", "Microorganismos del Suelo", "11. 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