Agricultural Research Corporation (ARC) - Sudan
Proceedings of the Meetings of the National Crop Husbandry Committee - NCHC
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Effect of nitrogen and phosphorus on growth and yield of
maize
Nour A. M. , Lazim M. E. and Hashim A. A.
Abstract:
Field trials were carried out at the Gezira Research Station for three
seasons (1998 to 2000) with the objective of studying the performance of
the maize hybrid "PAN-6480", a newly released hybrid, to different
levels of N and P. Four rates of N (0, 86, 129 and 172 kg N/ha) and
three rates of P (0, 43 and 86 kg P2O5/ha) were used. Observations with
regard to days to flowering, plant population and grain yield were
recorded. Grain yields increased with the addition of N up to 86 kg
N/ha, beyond which increases were not significant. The crop showed a
poor response to P application and no increase in yield was obtained
with the addition of P up to 86 kg P2O5/ha. Hence, it is recommended
that only 86 kg N/ha be applied to the crop at sowing to obtain high
yields.
Proceedings of the Meetings of the National Crop Husbandry Committee 37th (2005) pp. 1-5
Proceedings of the Meetings of the National Crop Husbandry Committee - Sudan
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