PF 05. Nitrogen fertilizer doses and formic acid application, over silage proteolitic effects in oats silage made confection in three fenologic periods

• L. M. Gutierrez ^[1] ; E. M. Viviani Rossi ^[2] ; G. Roldan ^[2]
  1. [1] Universidad Mar del Plata, Balcarce, Argentina
  2. [2] INTA, Balcarce, Argentina
• Localización: Archivos Latinoamericanos de Producción Animal, ISSN 1022-1301, ISSN-e 1022-1301, Vol. 5, Nº. 3, 1997 (Ejemplar dedicado a: Proceedings XV ALPA meeting 1)
• Idioma: inglés
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• Resumen

  • The use of nitrogen fertilizer on oats crops silage made at early stages of plant groth increases Total nitrogen (TN) and Soluble-N (SOL-N) showing that proteolysis takes place in the silage aditives such as formic acid (5 L/t) reduces this negative effects on the nitrogenous components of herbage. This experiment was carried out at Balcarce Experimental Station (INTA) in Argentina, where oat fertilized with 4 doses of nitrogen in the form of urea: 0, 50, 100 and 150 kgN.ha, where ensiled on 3 dates: (D1): 25/9, (D2): 9/10, (D3): 17/10. A factorial experimental design was applied combining fertilizer, date of ensiling and formic acid addition. The results showed a double TN (%) interaction (P