Persistência e liberação de macronutrientes e silício da fitomassa de crotalária em função da fragmentação

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dc.contributor.authorda Costa, Claudio Hideo Martins [UNESP]
dc.contributor.authorCrusciol, Carlos Alexandre Costa [UNESP]
dc.contributor.authorSoratto, Rogério Peres [UNESP]
dc.contributor.authorFerrari Neto, Jayme [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2022-04-29T08:48:57Z
dc.date.available2022-04-29T08:48:57Z
dc.date.issued2012-08-06
dc.description.abstractThe persistence of straw, as well as the dynamics of nutrients release of it, are important aspects to consider in the choice of plants for composition of crop rotations in a no tillage system. Thus, the objective of this work was to evaluate the decomposition rate and macronutrients and silicon (Si) release from sunn hemp (Crotalaria juncea L.) phytomass, as a function of management, with and without fragmentation. A randomized blocks design, with four replications, in a factorial 2×6, constituted by two aboveground phytomass management after 75 days after emergence (with and without mechanical fragmentation) and six sampling times (0, 18, 32, 46, 74 and 91 days after management (DAM)), were evaluated the decomposition rate and nutrient release from sunn hemp biomass. The mechanical fragmentation of sunn hemp straw did not change the decomposition and macronutrients release. The maximum release rates occurred 0-18 DAM. Potassium is the most rapidly available nutrient, while the silicon is more slowly released to the ground. Over time there has been increasing Si content in the straw.en
dc.description.affiliationUniversidade Estadual Paulista - UNESP, Botucatu, SP
dc.description.affiliationUNESP, Botucatu, SP
dc.description.affiliationUnespUniversidade Estadual Paulista - UNESP, Botucatu, SP
dc.description.affiliationUnespUNESP, Botucatu, SP
dc.format.extent384-394
dc.identifier.citationBioscience Journal, v. 28, n. 3, p. 384-394, 2012.
dc.identifier.issn1516-3725
dc.identifier.issn1981-3163
dc.identifier.scopus2-s2.0-84864458679
dc.identifier.urihttp://hdl.handle.net/11449/232090
dc.language.isoeng
dc.language.isopor
dc.relation.ispartofBioscience Journal
dc.sourceScopus
dc.subjectCover crop
dc.subjectCrotalaria juncea L.
dc.subjectDecomposition rate
dc.subjectNutrient cycling
dc.subjectStraw management
dc.titlePersistência e liberação de macronutrientes e silício da fitomassa de crotalária em função da fragmentaçãopt
dc.title.alternativePersistence and release of macronutrients and silicon of sunnhemp phytomass as affected by fragmentationen
dc.typeArtigo
unesp.departmentProdução e Melhoramento Vegetal - FCApt

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Artigos - Genética - IBB
Botucatu - FCA - Faculdade de Ciências Agronômicas