Improving Washington Navel Orange Trees Productivity by Foliar Spray with Calcium Chloride, Calcium Nitrate and Calcium Chelate
El Sheikh, M., Zaeid, N., Khafagy, S. (2007). Improving Washington Navel Orange Trees Productivity by Foliar Spray with Calcium Chloride, Calcium Nitrate and Calcium Chelate. EKB Journal Management System, 2(1), 45-49.
Mohamed El Sheikh; Nagwa Zaeid; Salwa Khafagy. "Improving Washington Navel Orange Trees Productivity by Foliar Spray with Calcium Chloride, Calcium Nitrate and Calcium Chelate". EKB Journal Management System, 2, 1, 2007, 45-49.
El Sheikh, M., Zaeid, N., Khafagy, S. (2007). 'Improving Washington Navel Orange Trees Productivity by Foliar Spray with Calcium Chloride, Calcium Nitrate and Calcium Chelate', EKB Journal Management System, 2(1), pp. 45-49.
El Sheikh, M., Zaeid, N., Khafagy, S. Improving Washington Navel Orange Trees Productivity by Foliar Spray with Calcium Chloride, Calcium Nitrate and Calcium Chelate. EKB Journal Management System, 2007; 2(1): 45-49.

Improving Washington Navel Orange Trees Productivity by Foliar Spray with Calcium Chloride, Calcium Nitrate and Calcium Chelate

Catrina: The International Journal of Environmental Sciences
Article 6, Volume 2, Issue 1, January 2007, Page 45-49  XML PDF (194.28 K)
Document Type: Original Article
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Authors
Mohamed El Sheikh1; Nagwa Zaeid2; Salwa Khafagy email 2
1Department of Horticultural Crops Technology, National Research Center, Dokki, Giza, Egypt
2Department of Fruit Research, National Research Center, Dokki, Giza, Egypt
Abstract
Nine years old Washington Navel Orange Trees grow on clayey soil at Ashmoun District, AlMenoufya
Governorate, Egypt; were sprayed with calcium chloride at 1, 2 and 3%, calcium nitrate at 1, 2 and 3%
and calcium chelate at 1000, 2000 and 3000ppm at 3 spraying dates; 15th of April, 15th of June and 15th of
August. Results indicated that spraying nutrients increased N, P, K and Ca content in leaves compared
with the untreated trees. Meanwhile, yield as number of fruits and number of fruits/tree were
significantly improved by spraying different nutrient especially when sprayed with calcium nitrate or
calcium chloride at 3%. Creasing and fruit cracking/trees were significantly decreased by spraying
calcium chloride at 3%. However fruit quality (physical and chemical characteristics) were significantly
improved by spraying different nutrient treatments at higher concentrations.
Keywords
Washington Navel orange; foliar spray; Mineral content; yield and fruit quality; creasing; fruit cracking
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