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Ultima descărcare din IBN: 2023-09-11 14:04 |
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631.52:634.11 (1) |
Агротехника (1225) |
Плодоводство (1437) |
SM ISO690:2012 BALAN, Valerian, VĂMĂŞESCU, Sergiu. Efectul fertilizării foliare şi al răririi fructelor asupra recoltei la soiul de măr florina. In: Ştiinţa Agricolă, 2015, nr. 1, pp. 61-66. ISSN 1857-0003. |
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Ştiinţa Agricolă | ||||||
Numărul 1 / 2015 / ISSN 1857-0003 /ISSNe 2587-3202 | ||||||
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CZU: 631.52:634.11 | ||||||
Pag. 61-66 | ||||||
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The researches were conducted in the period 2008-2013, in an apple orchard planted in 2003 with Florina variety grafted on the rootstock M26, at a planting distance of 4x2 m. The trees were trained as slender spindles. The study was focused on the effect of foliar fertilization and fruit thinning on the fruit yield of Florina
variety. Foliar fertilization was performed with urea 46% N at the concentrations of 0.4% - 1.2%, depending on the stage of fruit development; chemical thinning was performed when the central fruit from inflorescence reached 10-12 mm, using the preparation Bioprzerzedzacz 060 SL at the concentration of 0.075%; manual thinning was carried out when the fruit reached 16-18 mm in diameter. The mixed thinning technique (chemical thinning
combined with manual thinning) was also used. Fruit harvest recorded the highest values in the trees that received 46% urea solution (NH2)2CO at concentrations of 0.5% and 0,6 % - when 75% of flowers have fallen, 0.8% and 0,9 % - when the fruits reached the diameter of 10-12 mm, 1.1% and 1,2 % - when the fruits reached the
diameter of 25-30 mm, supplemented by spraying with Poly-Feed (NPK 19:19:19 Mg, Mn, Cu, Zn, Fe, Mo) at a concentration of 0.1% - when the fruits began to ripe and with calcium chloride (CaCl2) at concentrations of 0.6% and 0.7% - 4 weeks before fruit harvesting. Chemical thinning in combination with foliar nitrogen fertilization
ensures a crop harvest of 37,1-41,7 t/ha, by 22.6-62.8% more compared with the control variant. |
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Cuvinte-cheie Malus pumila, Ferilizare foliară, Rărirea fructelor, Recolt, Calitatea fructelor. |
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