Kleiber T., Golcz-Polaszewska M., Golcz A.
Fertigation is a measure that combines irrigation and plant nutrition, thus producing a synergistic effect. The aim of this study was determine the applicability of fertigation in pot culture of selected taxa of ornamental shrubs: barberry (Berberis ×ottawensis var. Superba), juniper (Juniperus ×pfitzeriana var. Mordigan Gold) and arborvitae (Thuja occidentalis var. Smaragd). Plants were grown in peat substrate and were fertigated with differentiated nutrient solution of the following chemical composition (mg∙dm-3) NS-I: N-NH4 <10; N-NO3 120; P 50; K 100; Ca 100; Mg 50; Fe 1.2; Mn 0.3; Zn 0.50; Cu 0.03; B 0.011; pH 5.50; EC 1.60 mS·cm-1; NS-II: N-NH4 <10; N-NO3 160; P 60; K 130; Ca 110; Mg 60; Fe 1.5; Mn 0.4; Zn 0.50; Cu 0.04; B 0.011; pH 5.50; EC 2.00 mS·cm-1. The control comprised plants grown using Controlled Release Fertilizer (CRF) Osmocote Exact Standard 5-6 M (2 g∙dm-3 substrate). Fertigation with NS-I had a significant effect on the growth parameters of barberry (height, width, length of lateral shoots) and arborvitae (height, plant spread, plant projected area) in relation to the control. In contrast, the effects of fertigation in the case of juniper were multidirectional. The nutrition level significantly modified the chemical composition of plants. Fertigation using NS-I resulted in a significant improvement (in comparison to the control) in P plant nutrition at a simultaneous reduction of Mn and Cu levels (in barberry), and an improved nutrition with N, P, K, Mg and Zn at a simultaneous decrease in Cu content (in arborvitae), an improved nutrition with P, K and Mg (in junipers). In view of biometric parameters, the application of NS-I could be recommended in fertigation of barberry and arborvitae.
Kleiber T., Golcz-Polaszewska M., Golcz A. 2019. Applicability of fertigation in cultivation of selected taxa of ornamental shrubs. J. Elem., 24(1): 233 - 243. DOI 10.5601/jelem.2018.23.1.1600
juniperus, berberis, thuja, fertigation, nutrient solution, macroelement, microelement