Limestone doses affecting mineral contents in tropical grass forage
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Journal of Radioanalytical and Nuclear Chemistry
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Field trial was performed at the experimental farm of Southeast Embrapa Cattle, São Carlos - SP, Brazil, on a 16 year old Brachiaria decumbens pasture, grown on a distrophic Hapludox (Oxisol), recovered by the use of limestone and fertilizer. The experiments were carried out in random blocks, with 6 replications and 5 treatments. The 100 m2 blocks were established in the pasture. Each block received a sequence of limestone doses of 0, 1, 2, 4 and 8 t/ha. The forage samples were taken one year after limestone application on soil surface. Instrumental neutron activation analysis (INAA) followed by gamma-ray spectrometry was the analytical method used to determine mineral contents. The statistical analysis showed a negative linear correlation of Br, Co, Cr, Mn and Zn contents in forage with the limestone doses, while the uptake of Mg was affected in a positive way.
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ARMELIN, M.J.A.; PRIMAVESI, O.; PRIMAVESI, A.C.; SAIKI, M. Limestone doses affecting mineral contents in tropical grass forage. Journal of Radioanalytical and Nuclear Chemistry, v. 264, n. 1, p. 29-31, 2005. DOI: 10.1007/s10967-005-0670-4. Disponível em: http://repositorio.ipen.br/handle/123456789/5569. Acesso em: 30 Dec 2025.
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