Ur. Bishnoi et al., INFLUENCE OF SPLIT-APPLIED NITROGEN ON GRAIN-YIELD AND PROTEIN-CONTENT IN 10 GRAIN-SORGHUM CULTIVARS, Journal of plant nutrition, 18(6), 1995, pp. 1081-1086
More information on the response of newly developed or introduced grai
n sorghum cultivars to split-applied nitrogen (N) in semi-arid rainfed
agriculture is needed. Therefore, the influence of four split-applied
N schedules (100/0, 66/34, 50/50, and 34/66) on six American (SC 283,
SC 274, SC 669, B 66181, SC 33, and RTam 428), and four West African
(CSm 63, IS 6704c, 1S 7173c, and 1S 7419c) grain sorghum cultivars was
evaluated. The split-applied N significantly increased grain yield an
d percent protein in grain sorghum over a one-time application of N. T
he increase in yield and protein content varied among varieties and sc
hedules of N application. Varieties SC 574, RTam 428, and Csm 63 at sp
lit-applied schedules of 66/34, 50/50, and 34/66, respectively, gave t
he highest yield over one-time application of N. Similar differences i
n percent protein in grain among cultivars due to split-applied N were
observed.