Influenţa îngrăşămintelor foliare asupra creşteri suprafeţei foliare la măr
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634.11:631.82(478) (1)
Плодоводство (1160)
Удобрения. Стимуляция роста растений. Внесение удобрений. Ростовые вещества (305)
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BALAN, Valerian; VĂMĂŞESCU, Sergiu. Influenţa îngrăşămintelor foliare asupra creşteri suprafeţei foliare la măr . In: Ştiinţa Agricolă. 2012, nr. 1, pp. 36-40. ISSN 1857-0003.
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Ştiinţa Agricolă
Numărul 1 / 2012 / ISSN 1857-0003 /ISSNe 2587-3202

Influenţa îngrăşămintelor foliare asupra creşteri suprafeţei foliare la măr
CZU: 634.11:631.82(478)

Pag. 36-40

Balan Valerian, Vămăşescu Sergiu
 
Universitatea Agrară de Stat din Moldova
 
Disponibil în IBN: 16 decembrie 2013


Rezumat

In the period of 2008 – 2010, it was studied the influence of foliar fertilization on the development of foliar surface and yield of apple trees. The investigation included the varieties Golden Delicious, Idared and Florina of 8 years old, grafted on M 26 rootstock, planted on a distance of 4x2 m and used as fertilizer 46% Urea in concentrations from 0,4% to 1,2% in different stages of fruit development, Poly-Feed (NPK 19:19:19 Mn, Mo, Fe, Cu, Mg, Zn) of 0,1% and CaCl2 of 0,5% to 0,7% concentration. The leaf surface varied depending on the variety and concentration of foliar fertilizers (Urea 46%). The largest leaf surface - 15.5 m2 - was obtained for the variety Golden Delicious in the group 4 where the spraying was performed with 46% Urea in concentrations of 0,6%, 0,9 %, 1.2% and the smallest was obtained in the control group where the leaf surface was of 11,3 m2.

Cuvinte-cheie
Apple varieties, Foliar fertilizer, Intensive orchard, Leaf surface