{"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. Zero hunger", "[SDV.SA] Life Sciences [q-bio]/Agricultural sciences", "http://aims.fao.org/aos/agrovoc/c_33949", "g\u00e9n\u00e9tique des populations", "04 agricultural and veterinary sciences", "agro\u00e9cosyst\u00e8me", "6. Clean water", "fertilit\u00e9 du sol", "PCR", "http://aims.fao.org/aos/agrovoc/c_34079", "polymerization", "community structure", "abonos inorg\u00e1nicos", "management", "570", "http://aims.fao.org/aos/agrovoc/c_7170", "http://aims.fao.org/aos/agrovoc/c_7172", "flore microbienne", "soil", "http://aims.fao.org/aos/agrovoc/c_36167", "micro-organisme du sol", "http://aims.fao.org/aos/agrovoc/c_10176", "organic fertilizers", "abonos org\u00e1nicos", "pratique culturale", "microorganismos del suelo", "suelo", "flore du sol", "P35 - Fertilit\u00e9 du sol", "P34 - Biologie du sol", "polimerizaci\u00f3n", "15. 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": "10.1007/s11104-006-0029-9", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:15:11Z", "type": "Journal Article", "created": "2006-07-21", "title": "Responses Of Maize Grain Yield To Changes In Acid Soil Characteristics After Soil Amendments", "description": "An experiment was conducted from 1997 to 2000 on an acid soil in Cameroon to assess the effectiveness of cultivating acid tolerant maize (Zea mays L.) cultivar and the use of organic and inorganic fertilizers as options for the management of soil acidity. The factors investigated were: phosphorus (0 and 60 kg ha\u22121), dolomitic lime (0 and 2 t ha\u22121), organic manure (no manure, 4 t ha\u22121 poultry manure, and 4 t ha\u22121 of leaves of Senna spectabilis), and maize cultivars (ATP-SR-Y \u2013 an acid soil-tolerant, and Tuxpeno sequia \u2013 an acid susceptible). On acid soil, maize grain yield of ATP-SR-Y was 61% higher than the grain yield of Tuxpeno sequia. Continuous maize cultivation on acid soil further increased soil acidity, which was manifested by a decrease in pH (0.23 unit), exchangeable Ca (31%) and Mg (36%) and by an increase in exchangeable Al (20%). Yearly application of 60 kg ha\u22121 of P for 3 years increased soil acidity through increases in exchangeable Al (8%) and H (16%) and a decrease in exchangeable Ca (30%), Mg (11%) and pH (0.07 unit). Lime application increased grain yield of the tolerant (82%) and susceptible (208%) cultivars. The grain yield increases were associated with a mean decrease of 43% in exchangeable Al, and 51% in H, a mean increase of 0.27 unit in pH, 5% in CEC, 154% in exchangeable Ca, and 481% in Mg contents of the soil. Poultry manure was more efficient than leaves of Senna producing 38% higher grain yield. This yield was associated with increases in pH, Ca, Mg and P, and a decrease in Al. The highest mean grain yields were obtained with lime added to poultry manure (4.70 t ha\u22121) or leaves of Senna (4.72 t ha\u22121). Grain yield increase was more related to the decrease in exchangeable Al (r = \u22120.86 to \u22120.95, P<0.01) and increase in Ca (r = 0.78\u20130.94, P<0.01), than to pH (r = \u22120.57 (non-significant) to \u22120.58 (P<0.05)). Exchangeable Al was the main factor determining pH (r = \u22120.88 to \u22120.92, P<0.01). The yield advantage of the acid tolerant cultivar was evident even after correcting for soil acidity. Acid soil-tolerant cultivars are capable of bringing unproductive acid soils into cultivation on the short run. The integration of soil amendments together with acid soil-tolerant cultivar offers a sustainable and comprehensive strategy for the management of acid soils in the tropics.", "keywords": ["0106 biological sciences", "2. Zero hunger", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "F04 - Fertilisation"], "contacts": [{"organization": "Th\u00e9, Charles, Calba, Henri, Zonkeng, C\u00e9licard, Ngonkeu, Eddy L\u00e9onard Mangaptch\u00e9, Adetimirin, Victor O., Mafouasson, Hortense A., Meka, S.S., Horst, Walter J.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1007/s11104-006-0029-9"}, {"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/s11104-006-0029-9", "name": "item", "description": "10.1007/s11104-006-0029-9", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s11104-006-0029-9"}, {"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": "10.1007/s11104-016-2949-3", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:15:20Z", "type": "Journal Article", "created": "2016-06-14", "title": "Phosphorus Availability And Microbial Community In The Rhizosphere Of Intercropped Cereal And Legume Along A P-Fertilizer Gradient", "description": "Positive below-ground interactions (facilitation) should be more pronounced when resources limit crop growth, according to the stress-gradient hypothesis. Our aim was to test this hypothesis for intercropped durum wheat and faba bean along a P-fertilizer gradient. A field experiment was conducted in a long-term P-fertilizer trial with three rates of P-fertilization (No, Low and High P). Microbial biomass was assessed by chloroform fumigation-extraction. Quantitative PCR was applied to evaluate the abundance of relevant microbial groups. Phosphorus availability and microbial biomass systematically increased in the rhizosphere compared to bulk soil. P-fertilization resulted in higher abundance of targeted bacterial phyla, whole bacterial and fungal communities, and depressed mycorrhizal colonization of durum wheat, but not faba bean. Microbial biomass carbon significantly increased in the rhizosphere only in P-fertilized treatments, pointing to P limitation of microbial communities. Intercropping yielded a significant effect on rhizosphere microbial properties only at High P. Microbial biomass P increased in the rhizosphere of intercropped faba bean only at No P level, and was thus the sole finding supporting the stress-gradient hypothesis. P-fertilization was the main driver of microbial communities in this field trial, and P-fertilizer application modulated the species-specific effect in the intercrop. Plant performance did not validate the stress-gradient hypothesis as positive plant-plant interactions occurred regardless of the level of P-fertilization.", "keywords": ["[SDE] Environmental Sciences", "engrais phosphat\u00e9", "F08 - Syst\u00e8mes et modes de culture", "[SDV]Life Sciences [q-bio]", "F62 - Physiologie v\u00e9g\u00e9tale - Croissance et d\u00e9veloppement", "mycorhization", "Triticum turgidum", "630", "fertilisation", "[SHS]Humanities and Social Sciences", "http://aims.fao.org/aos/agrovoc/c_37554", "http://aims.fao.org/aos/agrovoc/c_5800", "http://aims.fao.org/aos/agrovoc/c_10795", "http://aims.fao.org/aos/agrovoc/c_24199", "2. Zero hunger", "Mycorrhizal colonization", "04 agricultural and veterinary sciences", "Vicia faba", "[SDV] Life Sciences [q-bio]", "fertilit\u00e9 du sol", "http://aims.fao.org/aos/agrovoc/c_6569", "Rhizosphere", "Long-term fertilization", "[SDE]Environmental Sciences", "[SHS] Humanities and Social Sciences", "Intercrop", "http://aims.fao.org/aos/agrovoc/c_8220", "rhizosph\u00e8re", "http://aims.fao.org/aos/agrovoc/c_4819", "http://aims.fao.org/aos/agrovoc/c_7170", "plante c\u00e9r\u00e9ali\u00e8re", "flore microbienne", "disponibilit\u00e9 nutriments (sol)", "http://aims.fao.org/aos/agrovoc/c_25512", "mod\u00e8le math\u00e9matique", "http://aims.fao.org/aos/agrovoc/c_36163", "Microbial community", "http://aims.fao.org/aos/agrovoc/c_3081", "phosphate", "P availability", "P34 - Biologie du sol", "15. Life on land", "http://aims.fao.org/aos/agrovoc/c_16367", "plante l\u00e9gumi\u00e8re", "http://aims.fao.org/aos/agrovoc/c_7958", "628", "http://aims.fao.org/aos/agrovoc/c_3910", "http://aims.fao.org/aos/agrovoc/c_35986", "0401 agriculture", " forestry", " and fisheries", "culture intercalaire", "http://aims.fao.org/aos/agrovoc/c_8165", "F04 - Fertilisation"]}, "links": [{"href": "https://doi.org/10.1007/s11104-016-2949-3"}, {"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/s11104-016-2949-3", "name": "item", "description": "10.1007/s11104-016-2949-3", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s11104-016-2949-3"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-06-14T00:00:00Z"}}, {"id": "10.1016/j.apsoil.2007.12.012", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:15:55Z", "type": "Journal Article", "created": "2008-02-11", "title": "Effects Of Living Mulches Or Residue Amendments On Soil Microbial Properties In Direct Seeded Cropping Systems Of Madagascar", "description": "Abstract   There is growing recognition for the need to study the impact of agricultural land uses on biological and biochemical properties of soils. In Madagascar, cropping systems based on direct seeding with permanent vegetation cover provide a new means for sustainable agriculture to protect the environment and make the most of natural resources. This study assessed the effects of different direct seeding mulch-based cropping systems on soil microbial biomass and activities. The soil was andic Dystrustept. Samples of the soil were taken from 0 to 5\u00a0cm soil layer of three direct seeding mulch-based cropping systems (DMC using crop residues and living mulches). The samples were compared with samples from conventionally tilled plots (CT) and natural fallows (NF). The field experiments were carried out over a 12-year-period and two types of amendment were applied once a year at sowing, farmyard manure (FYM) and farmyard manure combined with an NPK chemical fertilizer. The C and N content, microbial basal respiration and biomass and \u03b2-glucosidase, urease and acid phosphatase activities were determined. The results showed that there was no interaction between soil management strategies and the use of fertilizer. Furthermore, the fertilizer did not affect the soil C and N content or the acid phosphatase and urease activities. Farmyard manure with added NPK had a significantly greater effect than farmyard manure on its own, increasing the microbial biomass, soil respiration and \u03b2-glucosidase activity up to 26%, 52% and 20%, respectively but there was no significant difference between natural fallows and direct seeding mulch-based cropping systems. However, conventional tillage showed a significantly lower soil microbial biomass, C content, microbial respiration and urease activity than natural fallows. The results for direct seeding mulch-based systems varied according to the microbial activities measured. However, soil \u03b2-glucosidase and acid phosphatase activities were significantly higher for the direct seeding mulch-based systems using crop residues than for the direct seeding mulch-based systems using living mulches. Direct seeding mulch-based systems with Desmodium uncinatum living mulch had significantly lower microbial biomass and respiration than the other direct seeding mulch-based systems. There was less evidence of change in the soil between natural fallow and direct seeding mulch-based systems but a higher build-up of some microbial properties was obtained for direct seeding mulch-based systems soil than in conventionally tilled soils and natural fallow.", "keywords": ["crop residues", "Glycine max", "http://aims.fao.org/aos/agrovoc/c_7170", "living mulch", "microbial activity", "Zea mays", "630", "http://aims.fao.org/aos/agrovoc/c_36167", "micro-organisme du sol", "http://aims.fao.org/aos/agrovoc/c_33553", "http://aims.fao.org/aos/agrovoc/c_3301", "http://aims.fao.org/aos/agrovoc/c_4510", "http://aims.fao.org/aos/agrovoc/c_16118", "http://aims.fao.org/aos/agrovoc/c_35657", "F07 - Fa\u00e7ons culturales", "2. Zero hunger", "microbial biomass", "http://aims.fao.org/aos/agrovoc/c_2604", "r\u00e9sidu de r\u00e9colte", "activit\u00e9 enzymatique", "P35 - Fertilit\u00e9 du sol", "04 agricultural and veterinary sciences", "http://aims.fao.org/aos/agrovoc/c_25803", "15. Life on land", "andic Dystrustept", "semis direct", "6. Clean water", "fertilit\u00e9 du sol", "http://aims.fao.org/aos/agrovoc/c_8504", "[SDE]Environmental Sciences", "direct seeding", "respiration du sol", "0401 agriculture", " forestry", " and fisheries", "F04 - Fertilisation", "mati\u00e8re organique du sol"]}, "links": [{"href": "https://doi.org/10.1016/j.apsoil.2007.12.012"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Applied%20Soil%20Ecology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.apsoil.2007.12.012", "name": "item", "description": "10.1016/j.apsoil.2007.12.012", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.apsoil.2007.12.012"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2008-06-01T00:00:00Z"}}, {"id": "10.1016/j.eja.2008.07.003", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:16:18Z", "type": "Journal Article", "created": "2008-09-07", "title": "Competition For Nitrogen In An Unfertilized Intercropping System: The Case Of An Association Of Grapevine And Grass Cover In A Mediterranean Climate", "description": "Cover cropping is currently increasing in vineyards as it provides solutions to some of the problems encountered in vine growing. However, its development is still hampered in Mediterranean regions because of fears of severe competition for water. Recent studies have shown that soil resources other than water may also be restrictive, and particularly nitrogen. Over a three-year period, the effect of introducing a cover crop was studied with respect to the temporal and spatial changes to nitrogen dynamics in a Mediterranean vineyard. The experiment compared the impact of three different types of soil cover management on nitrogen dynamics, and particularly on soil nitrogen mineralization which is the principal source of inorganic nitrogen in situations with no application of N fertilizers which are frequent in viticulture. This experiment provided evidence that the presence of an intercrop significantly reduced nitrogen accumulation in aerial parts of grapevine during the year due to competition for soil resources. This reduction varied markedly between years and treatments, and was more pronounced during dry years. The competition for nitrogen was direct as intercrop deprived grapevine of soil nitrogen beneath the inter-row and caused grapevine uptake to be higher beneath the row. In deep soils, a grapevine can adapt its root system in order to access deeper water resources, but it then partially abandons the mineralization zone containing most inorganic nitrogen. Competition for nitrogen was less marked with a temporary cover crop than with a permanent one, because of the shorter period of uptake with the former and the time needed for an annual cover crop to develop its root system each year. Intercrop also competed indirectly for nitrogen with grapevine as it took up soil water and made inorganic nitrogen less mobile and accessible to grapevine. Intercrop markedly decreased soil nitrogen mineralization. Although it did not significantly affect organic matter characteristics or soil temperature, it clearly modified the water regime. Indeed, under either temporary or perennial cover crops, the upper soil layers dried more rapidly than when there was only evaporation from bare soil. Consequently, nitrogen mineralization decreased faster with intercropped treatments and halted prematurely during the summer. The earliness of the reduction in nitrogen accumulation in intercropped vineyards also suggested that a lower level of nitrogen transfer to perennial reserves was involved. Indeed, grass cover grows and competes for nitrogen during the autumn which is a favourable period for nitrogen accumulation in wood reserves. Although better water infiltration was observed in the presence of a cover crop (notably in the autumn), the favourable conditions for nitrogen mineralization were propitious for grass cover growth and uptake. Consequently, intercrop reduced grapevine growth of the year but also the potential growth for the next year by decreasing grapevine nitrogen perennial reserves", "keywords": ["[SDV.SA]Life Sciences [q-bio]/Agricultural sciences", "P33 - Chimie et physique du sol", "2. Zero hunger", "0106 biological sciences", "[SDV.SA] Life Sciences [q-bio]/Agricultural sciences", "STRESS", "550", "F08 - Syst\u00e8mes et modes de culture", "http://aims.fao.org/aos/agrovoc/c_8283", "WATER-NITROGEN INTERACTION", "COMPETITION", "NITROGEN BALANCE", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "http://aims.fao.org/aos/agrovoc/c_4188", "INTERCROPPING", "Vitis vinifera", "http://aims.fao.org/aos/agrovoc/c_3081", "http://aims.fao.org/aos/agrovoc/c_3910", "0401 agriculture", " forestry", " and fisheries", "culture intercalaire", "RELATION SOURCE-PUITS", "F04 - Fertilisation"]}, "links": [{"href": "https://doi.org/10.1016/j.eja.2008.07.003"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/European%20Journal%20of%20Agronomy", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.eja.2008.07.003", "name": "item", "description": "10.1016/j.eja.2008.07.003", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.eja.2008.07.003"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2009-01-01T00:00:00Z"}}, {"id": "10.1016/j.fcr.2012.09.011", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:16:29Z", "type": "Journal Article", "created": "2012-10-23", "title": "Upland Rice Production Under Conservation Agriculture Cropping Systems In Cold Conditions Of Tropical Highlands", "description": "In response to the extensive development of upland rice on the hillsides of the Malagasy highlands, alternative cropping systems based on conservation agriculture have been recommended to halt loss of soil fertility. To assess the yield performances of these cropping systems, an experiment was set up in 2003 at Andranomanelatra (1640 m asl) in the Malagasy highlands. Grain yield, yield components, biomass accumulation and nitrogen uptake of upland rice were analyzed in the 2004-2005, 2006-2006, and 2006-2007 seasons, and root length density was measured in the 2007-2008 season. The rice crop was planted every second year following two different crops: maize intercropped with soybean (M + S, with both conventional tillage and no tillage) and maize intercropped with Brachiaria ruziziensis (M + B only with no tillage). For each cropping system, two levels of fertilization were used: no fertilizer or application of organic inputs and mineral fertilizer. The season, cropping system, and fertilization treatment had significant effects on rice grain yields. Higher yields were associated with a greater number of plants per m2, which decreased significantly over the three seasons, probably due to the highly variable beginning of the rains, and in the final season, with attacks by soil insects. The rice yield with conventional tillage was the highest and differed significantly from rice yield when maize was intercropped with Brachiaria under the no-till system, but not when the maize was intercropped with soybean with no tillage. In all three seasons, grain yields were closely linked to crop N at harvest. Differences in N uptake between treatments appeared very early in the crop cycle. Under conventional tillage, root length density at 68 days after sowing was higher between 0 and 30 cm depth than with no tillage. In these cold highlands conditions, plant establishment appeared to be more difficult with no tillage and resulted in reduced plant development and plant N uptake, particularly when rice was planted after maize intercropped with Brachiaria.", "keywords": ["[SDE] Environmental Sciences", "0106 biological sciences", "Glycine max", "F08 - Syst\u00e8mes et modes de culture", "rendement des cultures", "F50 - Anatomie et morphologie des plantes", "Zea mays", "01 natural sciences", "630", "fertilisation", "http://aims.fao.org/aos/agrovoc/c_10176", "http://aims.fao.org/aos/agrovoc/c_16034", "http://aims.fao.org/aos/agrovoc/c_8076", "syst\u00e8me de culture", "http://aims.fao.org/aos/agrovoc/c_3301", "http://aims.fao.org/aos/agrovoc/c_4510", "http://aims.fao.org/aos/agrovoc/c_8511", "http://aims.fao.org/aos/agrovoc/c_10795", "F07 - Fa\u00e7ons culturales", "2. Zero hunger", "syst\u00e8me racinaire", "engrais azot\u00e9", "http://aims.fao.org/aos/agrovoc/c_26419", "Oryza", "non-travail du sol", "04 agricultural and veterinary sciences", "15. Life on land", "riz pluvial", "rotation culturale", "6. Clean water", "Brachiaria ruziziensis", "densit\u00e9", "http://aims.fao.org/aos/agrovoc/c_2186", "http://aims.fao.org/aos/agrovoc/c_8504", "http://aims.fao.org/aos/agrovoc/c_5435", "[SDE]Environmental Sciences", "0401 agriculture", " forestry", " and fisheries", "http://aims.fao.org/aos/agrovoc/c_1971", "http://aims.fao.org/aos/agrovoc/c_5195", "http://aims.fao.org/aos/agrovoc/c_6662", "F04 - Fertilisation"]}, "links": [{"href": "https://doi.org/10.1016/j.fcr.2012.09.011"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Field%20Crops%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.fcr.2012.09.011", "name": "item", "description": "10.1016/j.fcr.2012.09.011", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.fcr.2012.09.011"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-10-01T00:00:00Z"}}, {"id": "10.1016/j.oneear.2024.11.018", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:17:03Z", "type": "Journal Article", "created": "2024-12-20", "title": "A microbial framework for nitrogen cycling solutions in agroecosystems", "description": "Nitrogen use in agriculture often prioritizes immediate yield gains at the expense of the environment and agroecosystem health. This problem persists because current solutions for crop nitrogen use inefficiency focus too narrowly on inputs and overlook the internal processes that govern nitrogen's fate, from crop uptake and environmental losses to storage and transfer between various organic pools. We synthesize recent research developments in soil nitrogen biogeochemistry into an aspirational and accessible microbe-centered framework that clarifies understanding of nitrogen accumulation, recycling, and plant uptake processes in soil. This framework can guide scientific exploration and practical applications to boost crop yields, enrich soil organic matter, and reduce environmental nitrogen losses.", "keywords": ["[SDE] Environmental Sciences", "diversification", "propri\u00e9t\u00e9 physicochimique du sol", "http://aims.fao.org/aos/agrovoc/c_27870", "F08 - Syst\u00e8mes et modes de culture", "rendement des cultures", "agro\u00e9cologie", "http://aims.fao.org/aos/agrovoc/c_5192", "http://aims.fao.org/aos/agrovoc/c_27938", "630", "fertilisation", "plante de couverture", "cycle de l'azote", "http://aims.fao.org/aos/agrovoc/c_10176", "http://aims.fao.org/aos/agrovoc/c_36669", "efficacit\u00e9 d'utilisation de l?azote", "http://aims.fao.org/aos/agrovoc/c_10795", "http://aims.fao.org/aos/agrovoc/c_35657", "azote", "http://aims.fao.org/aos/agrovoc/c_1936", "http://aims.fao.org/aos/agrovoc/c_7182", "agro\u00e9cosyst\u00e8me", "engrais min\u00e9ral", "http://aims.fao.org/aos/agrovoc/c_92381", "http://aims.fao.org/aos/agrovoc/c_fd20296f", "[SDE]Environmental Sciences", "http://aims.fao.org/aos/agrovoc/c_2344", "F04 - Fertilisation", "mati\u00e8re organique du sol"]}, "links": [{"href": "https://doi.org/10.1016/j.oneear.2024.11.018"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/One%20Earth", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.oneear.2024.11.018", "name": "item", "description": "10.1016/j.oneear.2024.11.018", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.oneear.2024.11.018"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-12-01T00:00:00Z"}}, {"id": "10.1023/a:1009870308097", "type": "Feature", "geometry": null, "properties": {"license": "unspecified", "updated": "2026-07-27T16:18:05Z", "type": "Journal Article", "title": "Effect Of Slaked Lime And Gypsum On Acidity Alleviation And Nutrient Leaching In An Acid Soil From Southern China", "description": "A soil column experiment was made to study the effects of slaked lime (Ca(OH)2) and gypsum (CaSO4\u00b72H2O) on soil acidity, soil solution chemistry and nutrient leaching in an acid soil from Southern China. Results showed that application of sufficient slaked lime to initially increase the pH of the topsoil by 1 unit caused an increase in pH to 5 cm deeper than the layer of application as a result of bicarbonate leaching. With leaching of Ca from slaked lime or gypsum from the topsoil to the subsoil there was a decrease in exchangeable Al in the subsoil. Surface application of slaked lime or gypsum or both decreased the activity of toxic Al and increased AlSO4+ activity in the subsoil solution. The Ca added in slaked lime or gypsum was accounted for by the increase in exchangeable Ca over the soil profile and the leaching loss. By contrast there was a negative balance of extractable sulfate and aluminum in the soil, indicating the formation of precipitates. There was little mineralisation of N and formation of NO3- under the conditions of the experiment. The leaching of cations in this soil treated with slaked lime or gypsum was driven by the dynamics of sulfate.", "keywords": ["P33 - Chimie et physique du sol", "propri\u00e9t\u00e9 physicochimique du sol", "calcium", "lessivage du sol", "aluminium", "http://aims.fao.org/aos/agrovoc/c_7182", "http://aims.fao.org/aos/agrovoc/c_15591", "http://aims.fao.org/aos/agrovoc/c_200", "sulfate", "http://aims.fao.org/aos/agrovoc/c_317", "http://aims.fao.org/aos/agrovoc/c_1196", "gypse", "hydroxyde de calcium", "http://aims.fao.org/aos/agrovoc/c_1556", "sol acide", "min\u00e9ralisation", "http://aims.fao.org/aos/agrovoc/c_89", "http://aims.fao.org/aos/agrovoc/c_15999", "http://aims.fao.org/aos/agrovoc/c_1200", "amendement calcique", "http://aims.fao.org/aos/agrovoc/c_3453", "http://aims.fao.org/aos/agrovoc/c_7510", "F04 - Fertilisation"], "contacts": [{"organization": "Sun, B., Poss, Roland, Moreau, Roland, Aventurier, Alain, Fallavier, Paul,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1023/a:1009870308097"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Nutrient%20Cycling%20in%20Agroecosystems", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1023/a:1009870308097", "name": "item", "description": "10.1023/a:1009870308097", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1023/a:1009870308097"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2000-01-01T00:00:00Z"}}, {"id": "10.1080/08903060050136432", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:18:56Z", "type": "Journal Article", "created": "2002-07-26", "title": "Alley Cropping Of Maize And Gliricidia Sepium In The Sudanese Sahel Region: Some Technical Feasibility Aspects", "description": "An association in an alley cropping experiment of a short-term maize variety and a tree legume (#Gliricidia sepium#) adapted to the Sudanese Sahel region was studied from the point of view of the nitrogen balance and plot yields. Isotopic labelling applied in the field enabled the contribution to maize nitrogen nutrition from different nitrogen sources (fertilizer, prunings, and soil) to be quantified. For equal cultivated areas, alley cropping provides a maize yield greater than that of maize grown in pure stand without nitrogen fertilizer. However this yield is only 40% of that obtained in pure stands with fertilizer nitrogen. Alley cropping gives a very favourable Land Equivalent Ratio (LER) of 0.90 and 1.58 compared with N-fertilized and non-N-fertilized plots, respectively. These LERs demonstrate the increased biological efficiency of the cultivated soil in an agroforestry system. The percentage of the total nitrogen in the maize coming from prunings (Nfdp) varies between 30 and 35% and the true coefficient of nitrogen utilization of the prunings (TCUp) varies from 15-25%. In the environment of central Senegal, the percentage of total nitrogen of #G. sepium# coming from N2 fixation is quite low (Ndffix = 25%), and consequently, in the maize, the nitrogen coming from N2 fixation (Ndffix) is only 8%. It is therefore necessary to improve the efficiency of nitrogen fixation of #G. sepium# in this zone to assure the sustainability of the agroforestry system. (Resume d'auteur)", "keywords": ["Fixation de l'azote", "engrais organique", "Nitrogen", "F08 - Syst\u00e8mes et modes de culture", "rendement des cultures", "http://aims.fao.org/aos/agrovoc/c_5192", "Soil fertility", "Zea mays", "Gliricidia sepium", "fertilisation", "http://aims.fao.org/aos/agrovoc/c_16379", "http://aims.fao.org/aos/agrovoc/c_10176", "http://aims.fao.org/aos/agrovoc/c_4592", "Nitrogen fixation", "F01 - Culture des plantes", "Agroforestry", "http://aims.fao.org/aos/agrovoc/c_6970", "Ecosystem", "http://aims.fao.org/aos/agrovoc/c_10795", "azote", "agroforesterie", "2. 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Life on land", "http://aims.fao.org/aos/agrovoc/c_207", "Utilization", "http://aims.fao.org/aos/agrovoc/c_8504", "http://aims.fao.org/aos/agrovoc/c_7835", "Fertilization", "http://aims.fao.org/aos/agrovoc/c_3910", "0401 agriculture", " forestry", " and fisheries", "culture intercalaire", "http://aims.fao.org/aos/agrovoc/c_5195", "http://aims.fao.org/aos/agrovoc/c_5196", "http://aims.fao.org/aos/agrovoc/c_3278", "F04 - Fertilisation"], "contacts": [{"organization": "Ndiaye, Mamadou, Ganry, Francis, Oliver, Robert,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1080/08903060050136432"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Arid%20Soil%20Research%20and%20Rehabilitation", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1080/08903060050136432", "name": "item", "description": "10.1080/08903060050136432", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1080/08903060050136432"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2000-01-01T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=F04+-+Fertilisation&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=F04+-+Fertilisation&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=F04+-+Fertilisation&", "hreflang": "en-US"}, {"rel": "last", "type": "application/geo+json", "title": "items (last)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=F04+-+Fertilisation&offset=9", "hreflang": "en-US"}], "numberMatched": 9, "numberReturned": 9, "distributedFeatures": [], "timeStamp": "2026-07-28T04:01:18.106989Z"}