Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1182242
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dc.contributor.authorBUENO, F. O.
dc.contributor.authorCUADRA, S. V.
dc.contributor.authorOLIVEIRA, M. P. G. de
dc.contributor.authorBENDER, F. D.
dc.contributor.authorPEZZOPANE, J. R. M.
dc.contributor.authorSANTOS, P. M.
dc.contributor.authorNOGUEIRA, S. F.
dc.contributor.authorGERDES, L.
dc.contributor.authorGIMENES, F. M. de A.
dc.date.accessioned2025-12-05T13:48:39Z-
dc.date.available2025-12-05T13:48:39Z-
dc.date.created2025-12-04
dc.date.issued2025
dc.identifier.citationGrasses, v. 4, n. 4, 50, Dec. 2025.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1182242-
dc.descriptionThe use of plant growth simulation models, such as the Agricultural Crop Simulator (AgS), can support planning and management decisions in pasture-based animal production systems. AgS is a biophysical model that is being developed to focus on crops relevant to the Brazilian economy. Originally, the model was parameterized for Marandu palisadegrass (Urochloa brizantha cv. Marandu) under continuous stocking method and cutting regimes. The objective of this study was to parametrize and evaluate the performance of AgS in simulating Marandu palisadegrass biomass production under rotational stocking methods. Field data from an experiment assessing pre-grazing heights of Marandu palisadegrass grazed by beef cattle was used to evaluate the model. The simulations initially underestimated leaf and total biomass production, regardless of pre-grazing height. These results suggested that differences between cutting and grazing methods make additional model calibration necessary. Differences related to regrowth of leaves were addressed and the new calibration resulted in higher biomass allocation to leaves and stems, reducing the mean error in the 25 cm treatment from −1.001 to −253 kg ha−1 and the rRMSE from 41% to 34%. AgS showed potential for simulating rotational stocking after adjustments were made, and future calibrations should consider different management and environmental conditions.
dc.language.isoeng
dc.rightsopenAccess
dc.subjectAlocação de fotoassimilados
dc.subjectProdução de forragem
dc.subjectPré-pastoreio
dc.subjectModelo de simulação de crescimento de planta
dc.subjectCapim-marandu
dc.subjectMarandu palisadegrass
dc.subjectAllocation of photoassimilates
dc.subjectPre-grazing
dc.titleApplication of the AgS (Agricultural Crop Simulator) model to simulate the biomass production of arandu palisadegrass managed under rotational stocking with cattle.
dc.typeArtigo de periódico
dc.subject.thesagroAltura
dc.subject.thesagroSimulação
dc.subject.thesagroModelo de Simulação
dc.subject.nalthesaurusUrochloa brizantha
dc.subject.nalthesaurusForage production
dc.subject.nalthesaurusHeight
dc.subject.nalthesaurusCrop models
dc.subject.nalthesaurusSimulation models
riaa.ainfo.id1182242
riaa.ainfo.lastupdate2025-12-05
dc.identifier.doihttps://doi.org/10.3390/grasses4040050
dc.contributor.institutionFERNANDO OLIVEIRA BUENO, INSTITUTO DE ZOOTECNIA; SANTIAGO VIANNA CUADRA, CNPTIA; MONIQUE PIRES GRAVINA DE OLIVEIRA; FABIANI DENISE BENDER; JOSE RICARDO MACEDO PEZZOPANE, CPPSE; PATRICIA MENEZES SANTOS, CPPSE; SANDRA FURLAN NOGUEIRA, CNPMA; LUCIANA GERDES, INSTITUTO DE ZOOTECNIA; FLAVIA MARIA DE ANDRADE GIMENES, INSTITUTO DE ZOOTECNIA.
Appears in Collections:Artigo em periódico indexado (CNPTIA)

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