Abstract:
A field experiment was carried out at the Experimental Farm, College of
Agricultural Studies, Sudan university of Science and Technology, Shambat during
the winter season of 2012/2013. The objectives of the research were to study the
effect of compost and nitrogen fertilizers on growth and yield of two hybrids of
sunflower under Irrigation . The experimental design was a Randomized Complete
Block Design. The treatments were arranged in a split- plot arrangement with three
replications. The treatments consisted of six levels of fertilizers: five levels of
compost, (0 kg/fed, 5.04 kg/fed, 10.08kg/fed, 15.12kg/fed, 20.16kg/fed) and one
level of nitrogen (0.25kgN/fed0.21) as sub plots and two sunflower hybrids (Hysun
and Shambat) as main plots. The characters studied included plant height, number
of leaves/plant, stem diameter, leaf area, days to 50% flowering , days to maturity,
head diameter, number of seeds per head, weight of seeds/head, 100-seeds weight,
empty seeds percentage, seed yield (ton/ha) and seed oil percentage.
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empty seeds percentage and significant effect for the interaction (a and b) for plant
height at 45 days and days to maturity characters. No significant effect was
.observed for rest of the characters
