Ahmed, Z., El-Shafai, A. (2007). YIELD AND QUALITY OF TWO SUGARCANE VARIETIES AS AFFECTED BY BIO AND INORGANIC NITROGEN FERTILIZATION. Journal of Plant Production, 32(1), 59-74. doi: 10.21608/jpp.2007.204827
Z. A. Ahmed; A. M. A. El-Shafai. "YIELD AND QUALITY OF TWO SUGARCANE VARIETIES AS AFFECTED BY BIO AND INORGANIC NITROGEN FERTILIZATION". Journal of Plant Production, 32, 1, 2007, 59-74. doi: 10.21608/jpp.2007.204827
Ahmed, Z., El-Shafai, A. (2007). 'YIELD AND QUALITY OF TWO SUGARCANE VARIETIES AS AFFECTED BY BIO AND INORGANIC NITROGEN FERTILIZATION', Journal of Plant Production, 32(1), pp. 59-74. doi: 10.21608/jpp.2007.204827
Ahmed, Z., El-Shafai, A. YIELD AND QUALITY OF TWO SUGARCANE VARIETIES AS AFFECTED BY BIO AND INORGANIC NITROGEN FERTILIZATION. Journal of Plant Production, 2007; 32(1): 59-74. doi: 10.21608/jpp.2007.204827
YIELD AND QUALITY OF TWO SUGARCANE VARIETIES AS AFFECTED BY BIO AND INORGANIC NITROGEN FERTILIZATION
Sugar Crops Res. Inst., Agric. Res. Center, Giza, Egypt
Abstract
The present investigation was carried out at Mattana Agricultural Research Station, Qena Governorate during 2003/2004 (plant cane) and 2004/2005 (1st ratoon) to investigate the effect of inorganic-N (120, 180 and 240 kg N/fed represented 50, 75 and 100% of the recommended rate, respectively), bio-N (without, Cerialin and Microbin) and their combinations on yield and quality of two sugarcane varieties (G.T.54-9 and Ph..8013). A split-split plot design with three replications was used in both seasons. Bio-N fertilizers were spread in the main plots; inorganic N levels were distributed in the sub plots, while the sub-sub plots were assigned for the two sugarcane varieties.
The results showed significant differences in all studied traits between sugarcane inoculated with Cerioalin and/or Microbin bio-N fertilizers and that left without bio-N. Meanwhile, except for the number of millable cane/m2 where, Microbin gave higher of it, no statistical variance between the two bio-N fertilizers was found in stalk height, stalk diameter, sucrose%, sugar recovery%, cane and sugar yields.
Increasing inorganic-N levels from 120 up to 240 kg N/fed resulted in a significant increase stalk height, stalk diameter, millable cane/m2, cane and sugar yields in the plant cane and 1st ratoon canes. Applying 180 kg N/fed gave the highest sucrose% (in the plant cane), while 240 kg N/fed was required to obtain the highest value of this trait in the 1st ratoon. The highest sugar recovery% was recorded by applying 180 kg N/fed in both cane crops.
Sugarcane variety G.T.54-9 surpassed Ph.8013 significantly in all of the studied traits except for stalk diameter, where Ph.8013 variety had thicker stalks.
Under conditions of the present work, supplying sugarcane G.T.54-9 variety grown as a plant or 1st ratoon with 100% of the recommended N-rate (240 kg N/fed) integrated with Cerialin bio-N at the rate of 4 bags (1.6 kg)/fed resulted in the highest sugar yield/fed.
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