Response of Pensacola Bahiagrass to Irrigation and Time of N Fertilization

Irrigated and not-irrigated Pensacola bahiagrass (Paspalum notatum var. saurae Parodi) was fertilized with 0, 84, 168, and 336 kgN/ha in six combinations of split applications during the season. Forage yields showed the following responses: Irrigation increased the average forage yield 2165 kg/ha in a dry year and 1303 kg in a wet year. Largest forage yields were obtained when irrigation was combined with the highest N rates. Average forage yield was 2967 kg/ha without fertilization and 12,017 kg with fertilization at a 336 kgN/ha rate. When N was applied to bahiagrass grown on soil low in N, best yields were obtained when 50% or more of the N was applied before growth starts in March or April. On similar soils application of N after August 1 was not as effective in increasing forage yields as March or April applications, but N applied in August or September increased forage production the following year.This material was digitized as part of a cooperative project between the Society for Range Management and the University of Arizona Libraries.The Journal of Range Management archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information.Migrated from OJS platform August 202