Effects of dairy manure compost and supplemental inorganic fertilizer on coastal bermudagrass Academic Article uri icon

abstract

  • Management strategies for using raw and composted dairy manures on perennial forages are not well defined. This study compared the effects of raw or composted dairy manure alone, or in combination with supplemental inorganic fertilizers (IFs), on Coastal bermudagrass [Cynodon dactylon (L.) Pers.] yield. Composted manure was split applied with 14.5 Mg ha1 in 2002 and 2003 for a total of 29 Mg ha1 (C1), or single applications of raw dairy manure (M) at 54 Mg ha1, or composted manure at 29 (C2) or 58 (C3) Mg ha1 were applied in 2002. These treatments were compared with an IF check (112 kg N ha1 cutting1 plus 49 kg P ha1 yr1 plus 93 kg K ha1 cutting1) and an untreated check (UC). Selected compost and manure plots also received supplemental inorganic N at rates of 0, 56, 84, and 112 kg ha1 cutting1, or 112 kg N ha1 cutting1 plus inorganic P (49 kg P ha1 yr1) or K (93 kg K ha1 cutting1). Maximum yields were obtained with 56 kg N ha1 cutting1 in 2002, and with 84 kg N ha1 cutting1 in 2003 and 2004. In 2004, supplemental inorganic P increased forage yields with the lower rate of compost (C2), and supplemental inorganic K increased forage yields of C2 and M treatments compared with the compost or M treatments alone

published proceedings

  • AGRONOMY JOURNAL

author list (cited authors)

  • Helton, T. J., Butler, T. J., McFarland, M. L., Hons, F. M., Mukhtar, S., & Muir, J. P.

citation count

  • 10

complete list of authors

  • Helton, Thomas J||Butler, Twain J||McFarland, Mark L||Hons, Frank M||Mukhtar, Saqib||Muir, James P

publication date

  • July 2008

publisher