The Role of Different Nitrogen Sources Combined with Foliar Applications of Molybdenum, Selenium or Sucrose in Improving Growth and Quality of Edible Parts of Spinach (Spinacia oleracea L.)
Brengi, S., Abouelsaad, I. (2019). The Role of Different Nitrogen Sources Combined with Foliar Applications of Molybdenum, Selenium or Sucrose in Improving Growth and Quality of Edible Parts of Spinach (Spinacia oleracea L.). EKB Journal Management System, 40(JANUARY- MARCH), 156-168. doi: 10.21608/asejaiqjsae.2019.29731
Sary H. Brengi; Ibrahim A. Abouelsaad. "The Role of Different Nitrogen Sources Combined with Foliar Applications of Molybdenum, Selenium or Sucrose in Improving Growth and Quality of Edible Parts of Spinach (Spinacia oleracea L.)". EKB Journal Management System, 40, JANUARY- MARCH, 2019, 156-168. doi: 10.21608/asejaiqjsae.2019.29731
Brengi, S., Abouelsaad, I. (2019). 'The Role of Different Nitrogen Sources Combined with Foliar Applications of Molybdenum, Selenium or Sucrose in Improving Growth and Quality of Edible Parts of Spinach (Spinacia oleracea L.)', EKB Journal Management System, 40(JANUARY- MARCH), pp. 156-168. doi: 10.21608/asejaiqjsae.2019.29731
Brengi, S., Abouelsaad, I. The Role of Different Nitrogen Sources Combined with Foliar Applications of Molybdenum, Selenium or Sucrose in Improving Growth and Quality of Edible Parts of Spinach (Spinacia oleracea L.). EKB Journal Management System, 2019; 40(JANUARY- MARCH): 156-168. doi: 10.21608/asejaiqjsae.2019.29731

The Role of Different Nitrogen Sources Combined with Foliar Applications of Molybdenum, Selenium or Sucrose in Improving Growth and Quality of Edible Parts of Spinach (Spinacia oleracea L.)

Alexandria Science Exchange Journal
Article 13, Volume 40, JANUARY- MARCH - Serial Number 1, January 2019, Page 156-168  XML PDF (588.91 K)
Document Type: Original Article
DOI: 10.21608/asejaiqjsae.2019.29731
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Authors
Sary H. Brengi* ; Ibrahim A. Abouelsaad*
Horticulture Department, Faculty of Agriculture, Damanhour University, Egypt
Abstract
Two pots experiments, at two successive winter seasons, were carried out to investigate the effects of two nitrogen (N) sources (ammonium nitrate and urea) and foliar applications of molybdenum (Mo), sucrose (Suc) or selenium (Se) on the growth and quality of the edible parts of spinach (Spinacia oleracea L. cv. Balady). The results indicated that the growth and quality of spinach plants can be greatly determined by the applied N source. The edible parts of spinach plants that received urea as N source showed lower content of NO3-, soluble oxalate, insoluble oxalate and total oxalate plus higher level of P content, however, higher moisture content as well as lower accumulation of dry mass, vitamin C and Fe were also observed in both seasons. Among the tested foliar applications at different concentrations, the treatment with 10% sucrose showed superior effects for increasingspinach growth (increase fresh weight, dry weight and leaves area) and quality (increase the contents of N, P, K, Ca, Fe, total protein and chlorophyll, as well as decreasing the contents of soluble oxalate and total oxalate) relative to the control (distilled water)in both seasons. The interaction treatment of urea fertilizer with foliar application of 10% sucrose was the most efficient one in decreasing NO3- and soluble oxalate contents without reductions in growth (fresh and dry weights), the contents of vitamin C and minerals against the corresponding control in both seasons.
 
Keywords
Spinach; ammonium nitrate; urea; molybdenum; sucrose%; selenium; oxalate; nitrate
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