Effect of Urea, NPK and Compost on Growth and Yield of Soybean (Glycine max L.), in Semi-Arid Region of Sudan

Table 4

Leaf area per plant of soybean genotype as affected by urea, NPK, and compost during 2009/10 and 2010/11 seasons.

DAP	2009/2010				2010/2011
treatments	30 days	45 days	60 days	75 days	30 days	45 days	60 days
Urea	40.20	100.30	69.70	82.55	25.43	75.45	125.47
Compost	37.20	93.55	55.00	82.30	28.62	68.47	108.31
NPK	30.80	66.40	52.75	59.05	28.04	64.58	101.12
Control	38.30	112.60	64.80	85.70	30.33	82.89	135.46
LSD	16.22 ns	56.50 ns	16.58 ns	41.68 ns	6.40 ns	11.17*	24.80*
CV%	27.69	37.90	17.12	33.66	14.23	9.59	13.18
SE+	10.14	35.32	10.37	26.06	4.00	6.98	15.50

*= significant, **= highly significant, ns = nonsignificant, LSD = least significant difference, CV% = coefficient of variation, SE± = standard error, and DAP = days after planting.