Agricultural Research Corporation (ARC) - Sudan
Proceedings of the Meetings of the National Crop Husbandry Committee - NCHC
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Effects of mother bulb
size and nitrogen nutrition on production of red onion Seeds at Rahad
Scheme
Asim Fadl Abu-Sarra
Abstract:
A field trial was conducted at the Rahad Agricultural Research Station
for four consecutive seasons 1999–2003 to study the effects of mother
bulb size and level of nitrogen nutrition on seed yield of the red onion
cv. "Saggai Red". Results indicated that medium-sized bulbs with
diameters in the range of 45 to <55 mm and nitrogen at the level of 36
kg nitrogen per feddan were most suitable for optimum seed production at
Rahad when mother bulbs were planted in double rows per 80-cm ridges at
15 cm in-row spacing. Nitrogen was applied in two equal doses. The first
dose applied three weeks after planting and the second dose applied four
weeks later. The seed yield obtained at Rahad was comparable to the
yield reported for northern Sudan and better than the yield obtained at
Kassala and New Halfa in eastern Sudan. This gives the Rahad Scheme a
comparative advantage in onion seed production for the growing onion
export business in the Sudan, mainly because of the availability of land
and water.
Proceedings of the Meetings of the National Crop Husbandry Committee 37th (2005) pp. 24-31
Proceedings of the Meetings of the National Crop Husbandry Committee - Sudan
Copyright©2008 National Crop Husbandry Committee
