Agricultural Research Corporation (ARC) - Sudan
Proceedings of the Meetings of the National Crop Husbandry Committee - NCHC
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Response of tomato to some fertilization recipes under Gezira
conditions
Asim F. Abu-Sarra , El Naeim A. Ali, Abdelaziz A. Hashim and Mustafa
A. M. Idris
Abstract:
Response of tomatoes (Lycopersicon esculentum Mill.) to some
fertilization recipes including different sources of soil added nitrogen
and foliar sprayings with ADB liquid fertilizer was evaluated in a field
experiment on El Remeitab benchmark soil series of Gezira Vertisols,
during the 2003-04 and 2004-05 winter seasons. Fertilization recipes
varied in their effect on increasing tomato total and marketable yields.
Irrespective of nitrogen source, moderate levels of soil added
fertilizers(43 kg N/ha) supplemented with four sprayings of ADB at
moderate concentration (325 ml/100 litres of water) resulted in similar
yield increases as those of the higher nitrogen level (86 kg/ha). At the
moderate nitrogen level supplemented with ADB, ASN and AS statistically
out-performed NPK and urea. Economically the same two recipes proved to
be more cost effective and profitable than all other recipes. Urea,
however, at the high nitrogen level produced acceptable returns at a
lower cost. Hence, the three recipes are proposed for recommendation as
other fertilization options for tomato growers in the Gezira. Some
evidences that ASN slightly depressed the fruit sugar content were
discussed as well.
Proceedings of the Meetings of the National Crop Husbandry Committee 37th (2005) pp. 197-208
Proceedings of the Meetings of the National Crop Husbandry Committee - Sudan
Copyright©2008 National Crop Husbandry Committee
