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Effect of Foliar Spray With Urea and Iron on Vegetative Growth and Mineral Contente of Peach Transplants cv. Dixired

تأثير الرش الورقي باليوريا و الحديد في النمو الخضري و المحتوى المعدني لشتلات الدراق صنف دكسيرد

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 Publication date 2011
and research's language is العربية
 Created by Shamra Editor




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Peach (Prunus persica Batsch) transplants cv. Dixired were sprayed three times a season with three levels of urea (45% N) (2.5, 5.0 and 7.5 gm/ L), and two levels of iron (10 and 20 mg Fe/ L) using chelated iron Fe-EDDHA (6%iron), each alone or in combination. Meanwhile the control transplants sprayed with distilled water during 2006 and 2007 growing seasons, twenty days intervals between each spray and another, the first spray is done at the first week of May in both seasons. Results indicated that all spray treatments with urea and iron each alone or with each other significantly increased leaves N, K, Fe, chlorophyll and carbohydrate concentration, transplant leaves area, shoots number, transplants height, main stem diameter and vegetative and root dry weight. While leaves P concentration, significantly decreased with the foliar spray with two concentrations of iron alone, or in combination with all concentrations of urea. The best treatment was 7.5 gm urea/ L + 20 mg Fe/ L., which gave the highest means of all studied parameters, except leaves P concentration, which were the highest mean of it was in the control treatment at both seasons.

References used
Al-Bamarny, S. F. A.; M. A. Salman and Z. R. Ibrahim. (2010). Effect of some chemical compounds on some characteristics of shoot and fruit of peach (Prunus persica L.) cv. Early Coronet. Meso. J. Agric. 38 (Supplement 1):35– 44
Arnon, D. I. (1949). Copper enzymes isolated chloroplasts polyphenol oxidase in Beta vulgaris . Plant Physiol. 24 : 1-15
Awad, S. M. and A. R. Atawia. (1995). Effect of foliar sprays with some micronutrient on 'Le-Conte' pear trees. I: Tree growth and leaf mineral content . Annals Agric. Sci. 40 (1): 359-367
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This study was conducted during the seasons 1995 and 1996 at Ninevah Horticulture Station- Iraq. On Halwani and Kamali grape cultivars. This study included four levels of foliar application of Fe-EDTA at concentrations of 0, 50, 100 and 200 ppm ir on, and soil compound fertilization with NPK (30 kg N + 30 kg P2O5 + 30kg K2O/ Donum) on the two abore mentioned cultivars, and the interaction among the three studied factors (cultivars, Fe and NPK), was also evaluated. The results showed that 200ppm of iron caused a significant increase in the percentage of pollen viability, Pollen grains germination, length of Pollen tube, setting of berries, ovules fertilization, leaf chlorophyll content, single leaf area, shoot leaf area, and total leaf area per vine and leaf area per cluster. The same results were obtained by using NPK fertilization. Halwani grape CV. Was significantly superior over on the Kamali grape CV. in pollen viabilits, pollen germination, length of pollen tube, leaf chlorophyll content and the single leaf area, While the Kamali grape CV. gave the highest shoot leaf area, total leaf area per vine and leaf area per cluster. The interaction among iron, NPK and cultivars reveded that the best treatment was 200 ppm iron with NPK, which gave the best results concerning flowering, setting and vegetative growth for both the cultivars.
استخدم التسميد الورقي بمستخلص الأعشاب البحرية والخميرة والحديد المخلب بالأحماض الأمينية لتحسين بعض الصفات الفيزيولوجية والإنتاجية لشجرة الدراق صنف red heaven والتخفيف من ظاهرتي إزدواجية ثمار الدراق وإصفرار نقص الحديد.
the experiment was conducted under Syrian coastal conditions to investigate (Vicia fabaL.), the effect of boron and zinc foliar fertilization on faba bean,either individually or in combination, by increased rates (0, 0.25, 0.50, 0.75, and 1 kg boro n / has boric acid, and zinc at a rate of 0, 0.375, 0.750, 1.125, and 1.5 kg / ha as zinc sulfate). where fababeans were plantedin plastic pots(15L) in )2013/11/10(and )2014/11/10(.The soil in pots has high content of calcium carbonate, low boron and zinc content, with pH slightly basic (representative of the region's soils). Half boron and zinc fertilizer rates were sprayed after 33 days of germination and the other half ,after 65 days of germination. The results showed significant responses in all studied parameters (number of branches,number of pods / plant, weight of 100 seeds, and seed yield (Kg. / ha) on faba bean plant, as a result of foliar fertilization by boron and zinc. Fababeans response to boron is higher than to zinc fertilization in all studied indicators. However,the treatmentB75Zn75(0.75 kg boric acid and 1.125kg of zinc sulfate) is the best, as compared to others. Also, the driedseeds yield was increased by about 17.66%.
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