%0 Journal Article
%T Composi  o qu¨ªmica do capim-Momba a (Panicum maximum Jacq. cv. Momba a) adubado com diferentes fontes de f¨®sforo sob pastejo = Chemical composition of Momba a grass (Panicum maximum Jacq. cv. Momba a) fertilized with different phosphorus on grazing
%A F¨¢bio Jacobs Dias
%A Cl¨®ves Cabreira Jobim
%A Ulysses Cecato
%A Antonio Ferriani Branco
%J Acta Scientiarum : Animal Sciences
%D 2007
%I 
%X O objetivo foi avaliar a composi  o qu¨ªmica do Panicum maximum Jacq. cv. Momba a, adubado com 140 kg ha-1 de P2O5 com diferentes fontes de f¨®sforo, sob pastejo, no per¨ªodo de dezembro de 2002 a abril de 2003, com intervalo de coleta a cada 28 dias. Tratamentos: 1- termofosfato magnesiano Yoorin¨°; 2-fosfato natural Gafsa¨°; 3-superfosfato simples + superfosfato triplo (SS + ST); e 4-testemunha. Os teores de prote¨ªna bruta na lamina foliar (PBf) e colmo (PBc), nitrog¨ºnio insol¨²vel em detergente ¨¢cido (NIDA), fibra em detergente neutro (FDN), fibra em detergente ¨¢cido (FDA), celulose (CEL), hemicelulose (HCEL), lignina (LIG), extrato et¨¦reo (EE), c¨¢lcio (Ca), f¨®sforo (P), cinzas e carboidratos n o-estruturais (CNE), n o foram influenciados pela aduba  o fosfatada. As vari¨¢veis PBc, FDNf, FDNc, LIGf, LIGc, CELf, CELc, NIDAf, EEf, EEc, Caf, Cac, Pf, Pc, CINZAc, CNEc, apresentaram efeito do per¨ªodo de coleta. N o ocorreu diferen a nacomposi  o qu¨ªmica da forragem do capim-Momba a em fun  o das fontes de f¨®sforo utilizadas na aduba  o da pastagem. As varia  es qualitativas foram de baixa magnitude. This study aimed to evaluate the chemical composition of Panicum maximum Jacq. cv. Momba a. Grassland was fertilized with 140 kg ha-1 of P2O5 from different phosphorus sources on grazing, in December, 2002, until April, 2003, with a collection interval of every 28 days. Treatments: 1-Yoorin¨° magnesium thermophosphate; 2-Gafsa¨° natural phosphate; 3-simple superphosphate + triple superphosphate (SS + TS) and 4-control. Leaf (lCP) and stem (sCP) crude protein, acid detergent fiber nitrogen (ADFN), neutral detergent fiber (NDF), acid detergent fiber (ADF), cellulose (CEL), hemicellulose (HEM), lignin (LIG), ether extract (EE), calcium (Ca), phosphorus (P), ash (A) and non-structural carbohydrates (NSC) were not influenced by phosphated fertilization. The variables sCP, lNDF, sNDF, sLIG, lLIG, sCEL, lCEL, lADFN, sEE, lEE, lCa, sCa, lP, sP, sA and sNSC, showed some effects from the collection period. There was no difference in the chemical composition of forage of the grass-Momba a in function of phosphorus sources used in the pasture. The qualitative variations were of low magnitude.
%K concentra  o de nutrientes
%K fosfatos naturais
%K qualidade de forragem
%K forage quality
%K natural phosphates
%K nutrient concentration
%U http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/242/153