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Organic C inputs and their rate of stabilization influence C sequestration and nutrient cycling in soils. This study was undertaken to explore the influence of the combined application of different quality organic resources (ORs) with N fertilizers on the link between aggregate dynamics and soil ...


Chivenge, P.P.Vanlauwe, BernardGentile, RSix, Johan[Organic resource quality influences short-term aggregate dynamics and soil organic carbon and nitrogen accumulation]Organic resource quality influences short-term aggregate dynamics and soil organic carbon and nitrogen accumulation

Soil Organic Carbon (SOC) is a major indicator of soil fertility in the tropics and underlies variability in crop response to mineral fertilizers. Critical SOC concentrations that interact positively with N fertilizer for optimal crop yield are less understood. A study was conducted on a Ferralso...


Musinguzi, P.Ebanyat, PeterTenywa, J.S.Basamba, T.A.Tenywa, M.M.Mubiru, D.N.[Critical soil organic carbon range for optimal crop response to mineral fertiliser nitrogen on a ferralsol.]Critical soil organic carbon range for optimal crop response to mineral fertiliser nitrogen on a ferralsol.

Soil organic carbon (SOC) is a major attribute of soil quality that responds to land management activities which is also important in the regulation of global carbon (C) cycling. This study evaluated bulk soil C and nitrogen (N) contents and C and N dynamics in three soil organic matter (SOM) fra...


Mujuru, LizzieMureva, AVelthorst, E.J.Hoosbeek, M.R.[Land use and management effects on soil organic matter fractions in Rohid Ferralsols and Haplic Arenosols in Bindura and Shamva districts in Zimbabwe]Land use and management effects on soil organic matter fractions in Rohid Ferralsols and Haplic Arenosols in Bindura and Shamva districts in Zimbabwe

Microdosing, the point-source application of a reduced fertilizer rate within 10 days of sowing, has increased short-term crop yields across the Sahel and is being actively scaled up as an agronomic practice. However, there is no information on the long-term effects of the technique upon soil fer...


Adams, Alexis M.Gillespie, Adam W.Kar, GourangoKoala, SaidouOuattara, BadioriKimaro, Anthony A.Bationo, B. AndréAkponikpè, Pierre B.I.Schoenau, Jeff J.Peak, Derek[Long term effects of reduced fertilizer rates on millet yields and soil properties in the West-African Sahel]Long term effects of reduced fertilizer rates on millet yields and soil properties in the West-African Sahel

In March 2013, 40 leading experts from across the world gathered at a workshop, hosted by the European Commission, Directorate General Joint Research Centre, Italy, to discuss the multiple benefits of soil carbon as part of a Rapid Assessment Process (RAP) project commissioned by Scientific Commi...


Milne, EleanorBanwart, Steven A.Noellemeyer, ElkeAbson, David JBallabio, CristianoBampa, FrancescaBationo, B. AndréBatjes, Niels H.Bernoux, MartialBhattacharyya, TapasBlack, HelainaBuschiazzo, Daniel E.Cai, ZucongCerri, Carlos EduardoCheng, KunCompagnone, ClaudeConant, Richard T.Coutinho, Heitor L.C.Brogniez, Delphine deCarvalho Balieiro, Fabiano deDuffy, ChristopherFeller, ChristianFidalgo, Elaine C.C.Figueira da Silva, CristianeFunk, RogerGaudig, GretaGicheru, Patrick TGoldhaber, MartyGottschalk, PiaGoulet, FredericGoverse, TessaGrathwohl, PeterJoosten, HansKamoni, Peter TKihara, JobKrawczynski, ReneLa Scala, NewtonLemanceau, PhilippeLi, LianqingLi, ZichuanMaron, Pierre-AlainMartius, ChristopherMelillo, JerryMontanarella, LucaNikolaidis, NikolaosNziguheba, GenerosePan, GenxingPascual, UnaiPaustian, KeithPiñeiro, GervasioPowlson, David S.Quiroga, AlbertoRichter, DanSigwalt, AnnieSix, JohanSmith, JoSmith, PeteStocking, MichaelTanneberger, FranziskaTermansen, MetteNoordwijk, Meine vanWesemael, Bas vanVargas, RodrigoLuiz Victoria, ReynaldoWaswa, Boaz S.Werner, DavidWichmann, SabineWichtmann, WendelinZhang, XuhuiZhao, YongcunZheng, JinweiZheng, Jufeng[Soil carbon, multiple benefits]Soil carbon, multiple benefits

Ecological restoration through exclosure establishment has become an increasingly important approach to reversing degraded ecosystems in rangelands worldwide. The present study was conducted in northwestern Ethiopia where policy programs are aiming to restore degraded lands. Changes in soil prope...


Mekuria, Wolde M.Langan, Simon J.Noble, A.D.Johnston, Robyn M.[Soil restoration after seven years of exclosure management in northwestern Ethiopia]Soil restoration after seven years of exclosure management in northwestern Ethiopia

Soil organic matter (SOM) and phosphorus (P) fractions play a key role in sustaining the productivity of acid-savanna oxisols and are greatly influenced by tillage practices. In 1993, a long-term experiment on sustainable crop rotation and ley farming systems was initiated on a Colombian acid-sav...


Basamba, T.A.Barrios, E.Amézquita Collazos, EdgarRao, Idupulapati M.Singh, B.R.[Tillage effects on maize yield in a Colombian savanna oxisol : Soil organic matter and P fractions]Tillage effects on maize yield in a Colombian savanna oxisol : Soil organic matter and P fractions

Near infrared reflectance spectroscopy (NIRS) analysis was used to discriminate soils of different agroecosystems in Colombia, with different contents and qualities of organic matter, chemical, and biological properties. Correlations were sought between absorbance in wavelength classes as determ...


Velásquez, E.Lavelle, Patrick M.Barrios, E.Joffre, RReversat, F[Evaluating soil quality in tropical agroecosystems of Colombia using NIRS]Evaluating soil quality in tropical agroecosystems of Colombia using NIRS

This study examined the influence of organic residue quality and N fertilizer on aggregate-associated SOM in maize cropping systems of southern Ghana. Six residue treatments of differing quality (Crotalaria juncea, Leucaena leucocephala, maize stover, sawdust, cattle manure and a control with ...


Fonte, Steven J.Yeboah, E.Ofori, PQuansah, GWVanlauwe, BernardSix, Johan[Fertilizer and residue quality effects on organic matter stabilization in soil aggregates]Fertilizer and residue quality effects on organic matter stabilization in soil aggregates

Organic resources (ORs) are essential inputs in tropical farming systems and their decomposition dynamics are related to their quality. A Decision Support System (DSS) for organic N management has been proposed earlier that subdivides ORs in four classes depending on their N, lignin, and soluble ...


Vanlauwe, BernardGachengo, CNShepherd, Keith D.Barrios, E.Cadisch, GeorgPalm, C.A.[Laboratory validation of a resource quality-based conceptual framework for organic matter management]Laboratory validation of a resource quality-based conceptual framework for organic matter management

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