Nemeat Alla,, E., Mohamed, A., Zalat, S. (2002). EFFECT OF SOIL AND FOLIAR APPLICATION OF NITROGEN FERTILIZATION ON SUGAR BEET. Journal of Plant Production, 27(3), 1343-1351. doi: 10.21608/jpp.2002.253465
E. A. E. Nemeat Alla,; A. A. E. Mohamed; S. S. Zalat. "EFFECT OF SOIL AND FOLIAR APPLICATION OF NITROGEN FERTILIZATION ON SUGAR BEET". Journal of Plant Production, 27, 3, 2002, 1343-1351. doi: 10.21608/jpp.2002.253465
Nemeat Alla,, E., Mohamed, A., Zalat, S. (2002). 'EFFECT OF SOIL AND FOLIAR APPLICATION OF NITROGEN FERTILIZATION ON SUGAR BEET', Journal of Plant Production, 27(3), pp. 1343-1351. doi: 10.21608/jpp.2002.253465
Nemeat Alla,, E., Mohamed, A., Zalat, S. EFFECT OF SOIL AND FOLIAR APPLICATION OF NITROGEN FERTILIZATION ON SUGAR BEET. Journal of Plant Production, 2002; 27(3): 1343-1351. doi: 10.21608/jpp.2002.253465
EFFECT OF SOIL AND FOLIAR APPLICATION OF NITROGEN FERTILIZATION ON SUGAR BEET
The present investigation was carried out at the Experimental Farm of Sakha Agricultural Research Station, Agricultural Research Center, at Kafr El- Sheikh Governorate, Egypt during 1999/2000 and 2000/2001 seasons. Two field experiments were conducted to study the effect of three nitrogen rates i.e., 40, 65 and 90 kg N/fed. (as soil application) and five treatments of foliar spraying with urea at the rate of (50 g/l) i.e., cont., one, two, three and four foliar on yield, yield components and quality of sugar beet as well as to minimizing costs of fertilization and environmental pollution. The experimental design was strip- plot design with four replications. The main results of this investigation could be summarized as follows:
Increasing nitrogen fertilizer as soil application up to 90 kg N/fed. and repeating foliar application with urea solution significantly increased root length and diameter, dry matter accumulation/plant, root and top yields/fed. as well as sugar yield/fed. in both seasons. The inverse was true in TSS, sucrose and juice purity percentages. Whereas, raising soil application of nitrogen from 40 to 90 kg N/fed. and foliar spraying with urea caused a marked decrease in the previously mentioned traits.
Generally, it can be concluded that soil application of nitrogen fertilizer at the rate of 65 kg N/fed. and foliar spraying sugar beet plants three times with urea solution at the rate of (50 g/l) could be recommended for optimum root and sugar yields per unit area as well as decreasing fertilizer costs under the condition of the present study.
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