EFFECT OF MICRO NUTRIENT COMPOUND, PHOSPHORUS RATES AND NITROGEN RATES AND ITS APPLICATION METHODS ON YIELD AND QUALITY OF SUGAR BEET (Beta vulgaris L.) UNDER TWO SOWING DATES | ||||
| Fayoum Journal of Agricultural Research and Development | ||||
| Article 3, Volume 25, Issue 2, July 2011, Page 22-36 PDF (502.78 K) | ||||
| Document Type: Research articles. | ||||
| DOI: 10.21608/fjard.2011.195499 | ||||
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| Authors | ||||
| M.S. Osman1; G. H. Abd Elhay1; I.H. El-Geddawy2; K.A.G. Abd-Elsalam.2 | ||||
| 1Agronomy, Faculty of Agriculture, Al-Azhar University. | ||||
| 2Researcher, Sugar Crops Res. Inst., Agric. Res. Center | ||||
| Abstract | ||||
| Two field experiments were carried out in Tamiya Agricultural Research Station at Fayoum Governorate for the two successive growing seasons of 2008/ 2009 and 2009/2010 to study yield and quality of sugar beet as affected by sowing dates included two sowing dates i.e. 15th July and 15th November and some macro and micro nutrients treatments Each sowing date included 24 - treatment which were the combination between three concentrations of foliar application micro nutrition (Fe, Mn, Zn and B) (0.5, 1.0 and 1.5 cm3 /L), two phosphorus rates (22.5 and 30 kg P2O5 /fed), two nitrogen rates (80 and 100 kg. N /fed) and two N- application method. Treatments were arranged in a split plot design with four replications. Foliar nutrient treatments were allocated in the main plots, whereas, the combination between phosphorus rates, nitrogen application method and rates were distributed in the sub plot area. The results showed that: Sucrose in both seasons and purity percentages in the 2nd season were significantly increased when sugar beet was sown on 15th July, meanwhile, non of the examined concentration of foliage compound as well as phosphorus level and nitrogen application method attained any significant effect on these characters. However, increasing the applied nitrogen let to significant decrease in sucrose % in both seasons of the 2nd sowing date (15th November). Moreover, purity % was not affected by nitrogen level in the 1st season and in the 1st sowing date in the 2nd season. Meanwhile in the 2nd sowing date of the 2nd season, purity %was reduced significantly by increasing in nitrogen level up100 Kg. N /fed. Tops yield was not affected by sowing dates, however root and sugar yields were significantly affected by sowing dates. Root and sugar yield significantly increased in the 1st sowing date. Also foliage compound treatments affected root and top yields in both seasons. On the other hand, sugar yield insignificantly affected by foliage compound treatments. Increasing phosphorus application significantly increased tops and root yield in both seasons, whereas sugar yield significantly increased with the increase in phosphorus level in the 1st sowing date of the 2nd season. Drilling method of nitrogen application significantly increased tops yield in both seasons, however increased root yield significantly in the 2nd sowing date of the two seasons. Also sugar yield was significantly increased by drilling nitrogen in the 1st season only. Increasing nitrogen rates let to significant increase in tops and roots yield in both seasons, meanwhile, this increase was statistically for sugar yield in the 1st sowing date of the 1st season and in the 2nd sowing date of the 2nd season. Based upon the obtained results and under this conditions, it could be recommended by the 1st sowing date and using nutrients compound (Fe, Mn, Zn and B) by 1.5 cm3 /L, 30 KgP2 O5 and 100 Kg.N/fed. by drilling method. | ||||
| Keywords | ||||
| Micro nutrient; Phosphorus rates; Nitrogen rates and Sugar beet | ||||
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