Agricultural Research Corporation (ARC) - Sudan
Proceedings of the Meetings of the National Crop Husbandry Committee - NCHC
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Effect of Irrigation at Different Soil Moisture Levels on Yield of
Sugarcane at Kenana Sugar Scheme
Dafa Alla Mohamed Abdel Wahab
Abstract:
Field experiments were conducted during 2001-02 and 2002-03 at Kenana
Sugar Scheme ( latitude 13010` N and longitude 320 40` E ) in heavy clay
soils, with 65 % clay, 24% silt, 11% sand and a pH of 7.5–8.5. The
objective of the study was to investigate the effects of irrigation
applied at the depletion levels of 25-30%, 55- 60% and 75-80% of
available soil moisture on yield and yield components of four sugarcane
cultivars: Co 6806, Co 997, BJ 8532 and TUC 75-3. In both seasons, the
irrigation treatments were applied three months after sowing and
continued till the crop was 13 months old. The reference
evapotranspiration for Kenana Sugar Scheme was computed using Penman-Monteith
approach. The amount of water required for irrigating sugarcane plants
was calculated. The results showed that irrigation based on the
depletion of 75-80% of available soil moisture led to a decreased yield
and yield components, whereas the best yield and yield components
resulted when irrigating at 55-60% depletion of available soil moisture
followed by 25-30% depletion. Regarding the effect of irrigation at
different soil moisture levels on cane and sugar yields results showed
that irrigation based on the depletion of 55-60% had out-yielded those
of 25- 30% and 75-80% depletion of available soil moisture. With respect
to the performance of the cultivars the highest cane and sugar yield was
obtained from the cultivar Co 6806 followed by cultivars Co 997, BJ 8532
and TUC 75-3.
Proceedings of the Meetings of the National Crop Husbandry Committee 40th (2005) pp. 187-201
Proceedings of the Meetings of the National Crop Husbandry Committee - Sudan
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