OPTIMUM ROW SPACING AND NITROGEN LEVEL FOR THE PLANT CANE AND RATOON OF THE NEW PROMISING SUGARCANE VARIETY F.153

Document Type : Original Article

Authors

Sugar Crops Research Institute, Agricultural Research Center, Giza, Egypt

Abstract

The present work was conducted at Mallawi Research Station, El Minis Governorate to study the effect of row spacing and nitrogen ferti­lizer on yield and quality of two spring plant cane crops planted in 1995/ 19% and 1996/1997 and their ratoons in 1996/1997 and 1997/1998 seasons. The study included twelve treatments which were the combina­tion between three row spacings (80, 100 and 120 cm) and four nitro­gen levels (150, 180, and 210 kgN/fed). The new promising sugar cane variety viz F. 153 was used in this investigation. The obtained results showed that stalk diameter, sucrose and purity percentages of the two plant canes or their first ratoons were not significantly affected by the used N levels. However, stalk height responded to N levels. Cane and sugar yields were significantly increased as the applied N levels were raised up to 210 kg N/fed for the two plant cane and/or ratoon crops. Sucrose and total soluble solids percentages of the plant cane in 1995/ 1996 and its first ratoon were insignificantly affected by row spacing. However, sucrose, total soluble solids and purity percentages significant­ly responded to row spacings under the first ratoon in 1997/1998. Cane and sugar yields were significantly increased up to 120 cm row spacing for the plant cane and/or ratoon crops.

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