@article{Almodovar:256448,
      recid = {256448},
      author = {Almodovar, L. E. and Valencia, E. and Rodriguez, A.},
      title = {Liquid Urea Rate Effects on Nutritive Value of 8-Week  Regrowth of Guineagrass {Panicum maximum Jacq.) Hay},
      address = {2008-07-13},
      number = {1875-2017-334},
      pages = {5},
      year = {2008},
      abstract = {Guineagrass (Panicum maximum Jacq.) is a valuable grass in  grazing systems in Puerto Rico, but when conserved as hay,  its low protein (<6.0%) concentration limits both meat and  milk production. This study assessed the effect of applying  liquid urea (LU) on hay harvested at 8-weeks regrowth of  guineagrass cvs. 'Mombasa' and 'Tanzania' hay. Liquid urea  were applied in a fine mist at baling at low (L; 0 lt/ha),  medium (M; 204 lt/ha) and high rate (H; 807 lt/ha). Hays  were stored for 8 week and core samples (250 g) were taken  for determination of chemical composition of crude protein  (CP), neutral detergent fiber (NDF) and acid detergent  fiber (ADF) using a completely randomized design. There  were cultivar effects and LU rate effects (P<0.05) for CP,  but there was no interaction. Crude protein averaged 13 and  17.7% for cv. Mombasa and Tanzania, respectively. There was  a linear increase (P<0.05) in CP with an increasing rate of  LU. Mean CP was 12, 15 and 20% for the L, M, and H rate,  respectively. Additive LU did not affect (P<0.05) either  NDF or ADF concentration in Mombasa and Tanzania. This  study shows that adding LU at baling increases CP, but has  no effect on NDF or ADF. Liquid urea at either  concentration can be used to increase the nutritive value  of low quality hay in Puerto Rico. Forage intake and  digestibility and nitrogen balance studies, however, are  needed to determine potential losses of N.},
      url = {http://ageconsearch.umn.edu/record/256448},
      doi = {https://doi.org/10.22004/ag.econ.256448},
}