Mostrar el registro sencillo del ítem

dc.contributor.authorAssmann, Joice Maript_BR
dc.contributor.authorMartins, Amanda Posseltpt_BR
dc.contributor.authorAnghinoni, Ibanorpt_BR
dc.contributor.authorCosta, Sérgio Ely Valadão Gigante de Andradept_BR
dc.contributor.authorFranzluebbersb, Alanpt_BR
dc.contributor.authorCarvalho, Paulo Cesar de Facciopt_BR
dc.contributor.authorSilva, Francine Damian dapt_BR
dc.contributor.authorCosta, Álvaro Araújopt_BR
dc.date.accessioned2018-11-28T02:45:36Zpt_BR
dc.date.issued2017pt_BR
dc.identifier.issn0100-0683pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/185165pt_BR
dc.description.abstractUnder integrated crop-livestock production systems (ICLS), plant and animal residues are important nutrient stocks for plant growth. Grazing management, by affecting the numbers of both plants and animals and the quality of residues, will influence nutrient release rates. The objective of this study was to evaluate the impact of grazing intensity on Ca and Mg release from pasture, dung, and soybean residues in a long-term no-till integrated soybean-cattle system. The experiment was established in May 2001 in a Latossolo Vermelho Distroférrico (Rhodic Hapludox). Treatments were a gradient of grazing intensity, determined by managing a black oat + Italian ryegrass pasture at 10, 20, 30, and 40 cm grazing height and no-grazing (NG), followed by soybean cropping. Ca and Mg release rates were determined in two entire cycles (2009/11). Moderate grazing (20 and 30 cm sward height) led to greater Ca and Mg release rates from pasture and dung residues, with low average half-life values (13 and 3 days for Ca and 16 and 6 days for Mg for pasture and dung, respectively). Grazing compared with NG resulted in greater Ca and Mg release from pasture and dung residues. Grazing intensity did not affect Ca and Mg release rates or amounts from soybean residues, but Ca and Mg release rates were greater from soybean leaves than from stems. Although moderate grazing intensities produce higher quality residues and higher calcium and magnesium release rates, a higher total nutrient amount is released by light grazing intensity and no-grazing, determined by higher residue production. Grazing intensity is, then, important for nutrient dynamics in the soil-plant-animal continuum.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofRevista brasileira de ciencia do solo. Viçosa. Vol. 41 (abr. 2017), [art.] e0160330, 13 p.pt_BR
dc.rightsOpen Accessen
dc.subjectMixed pastureen
dc.subjectQuímica do solopt_BR
dc.subjectAnimal residueen
dc.subjectSistema agropastorilpt_BR
dc.subjectHalf-life timeen
dc.subjectPastagem mistapt_BR
dc.subjectNutrient cyclingen
dc.subjectCálciopt_BR
dc.subjectMagnésiopt_BR
dc.subjectEsterco de gadopt_BR
dc.titleCalcium and magnesium released from residues in an integrated crop-livestock system under different grazing intensitiespt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001079199pt_BR
dc.type.originNacionalpt_BR


Ficheros en el ítem

Thumbnail
   

Este ítem está licenciado en la Creative Commons License

Mostrar el registro sencillo del ítem