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Scientific Papers Series B Horticulture

Scientific Papers Series B Horticulture

Scientific Papers Series B Horticulture

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Figure 1. The dynamic height growing of the plantsPlants of Thuja occidentalis “Columna” fromsubstratum 1 fertilized with NPK had aprogress of growth with 52,7% bigger than theunfertilized control.Fertilization of plants from substratum 1 withCoïc solution during the vegetation determineda growth of 47,9 cm towards the control (table3).The analysis of the results shows the followingprovisioning of plants in N, P, K.Table 3. Average content in nutritive elements from plants at Thuja Occidentalis " Columna" 2004-2006 Variant N% P% K% May Sept. May Sept. May Sept. 2,37 2,56 1,48 1,63 0,34 0,40 2,81 3,08 1,69 1,89 0,42 0,48 2,69 2,93 1,59 1,78 0,37 0,43 2,05 2,36 1,40 1,57 0,32 0,37 2,28 2,53 1,54 1,70 0,38 0,44 2,36 2,62 1,49 1,66 0,36 0,41The best provisioning was founded at V2,fertilized with NPK (3,08% N in September,1,89% for P and 0,48% for K).Nutritive solution (Coïc solution) appliedduring the vegetation, had also a goodinfluence for plants provisioning at V3 2,93%N in September, 1,78 P% and 0,43% K. Bothvariants (V2 and V3) content plants fromsubstratum 1, with peat.Results of agrochemical analysis of substratumare included in table 4.311

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