Response of Sugar Beet (Beta vulgaris L.) to Potassium and Sulphur Supply in Clayed Soil at North Delta, Egypt
(2013). Response of Sugar Beet (Beta vulgaris L.) to Potassium and Sulphur Supply in Clayed Soil at North Delta, Egypt. EKB Journal Management System, 35(1), 77-91. doi: 10.21608/agro.2013.94
. "Response of Sugar Beet (Beta vulgaris L.) to Potassium and Sulphur Supply in Clayed Soil at North Delta, Egypt". EKB Journal Management System, 35, 1, 2013, 77-91. doi: 10.21608/agro.2013.94
(2013). 'Response of Sugar Beet (Beta vulgaris L.) to Potassium and Sulphur Supply in Clayed Soil at North Delta, Egypt', EKB Journal Management System, 35(1), pp. 77-91. doi: 10.21608/agro.2013.94
Response of Sugar Beet (Beta vulgaris L.) to Potassium and Sulphur Supply in Clayed Soil at North Delta, Egypt. EKB Journal Management System, 2013; 35(1): 77-91. doi: 10.21608/agro.2013.94

Response of Sugar Beet (Beta vulgaris L.) to Potassium and Sulphur Supply in Clayed Soil at North Delta, Egypt

Egyptian Journal of Agronomy
Article 5, Volume 35, Issue 1, June 2013, Page 77-91  XML PDF (348.83 K)
Document Type: Original Article
DOI: 10.21608/agro.2013.94
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Abstract
THE SUGAR beet (Beta vulgaris L.) cultivar “Farida” was grown on a clayed soil at Agricultural Research Station, Agricultural Research Center, Egypt, during 2011/2012 and 2012/2013 years. The aim of this study is to study growth, yield and quality response of sugar beet cultivar "Farida" to three potassium rates (12, 24 and 48 kg K2O/feddan) (feddan (fed)= 0.42 hectare) and three sulphur rates (0, 125 and 250 kg S/fed) in clayed soil at North Delta, Egypt.
Application of potassium fertilizer at the rate of 48 kg K2O/fed resulted in a substantially increase in leaf area index (LAI) and dry matter accumulation (g/plant), root length (cm), root diameter (cm), root weight (g), root yield (ton/fed), top yield (ton/fed), total sugar (%), concentration of K, alkalinity coefficient, extraction of white sugar (%), losses sugar (%) and white sugar yield (ton/fed) compared with the rate of 12 kg K2O/fed in the two seasons. The inverse was true in juice purity (%) in the first season. The rate of 24kg K2O/fed was statistically at par with the rate of 48 kg K2O/fed in all the mentioned traits in both seasons. Potassium fertilizer rate had no significant effect on root/top ratio, concentration of Na and a-amino nitrogen (meq/100g) in both seasons and the percentage of juice purity (%) in the second season. Increasing sulphur rate from 0-250 kg S/fed significantly increased dry weight (g), LAI , root dimensions (length and diameter) (cm), root weight (g), top yield (ton/fed), root yield (ton/fed), gross sugar (%), white sugar (%), juice purity (%) and sugar yield (ton/fed) in both seasons. Application of sulphur fertilizer improved juice purity by decreasing impurities (K, Na and a-amino-N) in roots and, loss sugar (%) in the two seasons. Sugar beets received 250 kg S/fed produced the highest root and sugar yield (ton/fed). The interaction between potassium and sulphur rates had a significant effect on root and white sugar yields/fed. The maximum root and white sugar yields were achieved from beets received 24 or 48 kg K2O along with 250 kg S / fed in both seasons. It can be concluded that application of 24 kg K2O plus 250 kg S /fed was the recommended treatment for optimum root and extractable white sugar yield per unit area at Kafrelshiekh Governorate, Egypt.
Keywords
Sugar beet; (Beta vulgaris L.); potassium; sulphur; rates; yield and quality
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