Glasnik Zaštite Bilja, Vol. 42 No. 6, 2019.
Izvorni znanstveni članak
https://doi.org/10.31727/gzb.42.6.10
Status of macronutrients in the leaf of variety 'Škrlet bijeli' (Vitis vinifera L.) by different fertilization
Mirela Trdenić
Zvjezdana Marković
; Agronomski fakultet, Sveučilište u Zagrebu, Hrvatska
Mirjana Herak Ćustić
; Agronomski fakultet, Sveučilište u Zagrebu, Hrvatska
Marko Petek
; Agronomski fakultet, Sveučilište u Zagrebu, Hrvatska
Sažetak
Plant tissue analysis is the most reliable method for evaluating plant nutrition status because the nutrients in the leaf are a source of nutrient for the cluster during the ripening phase. The aim of this paper is to determine the influence of fertilization on the status of macroelements (N, P, K, Ca and Mg) in the leaf of the variety 'Škrlet Bijeli'. By comparing the obtained values with the reference ranges cited in the literature, it has been established the level of nutrition status of the grapevine with macronutrients. Four fertilization treatments were applied: NPK; NPK + Fertdolomit; NPK + Fertdolomit + Folibor B; NPK + Fertdolomit + Folibor B + Proteoleaf. Whole leaf sampling was performed at the flowering, veraison and ripening phase during three survey years. The values of N in the leaves ranged from 1.88 % to 4.47 %, P values varied from 0.18 % to 0.48 %, K values varied from 1.02 % to 1.96 %, Ca values ranged from 0.69 % to 2.70 % while Mg values ranged from 0.16 % to 0.41 %. By comparing the obtained values with the reference values, independently of fertilization and year, it was found that the values of N, P, K and Ca in the leaves of grapevine 'Škrlet bijeli' are within the reference range, while the Mg values are below the reference range.
Ključne riječi
fertilization; grapevine; leaf; macronutrients
Hrčak ID:
231242
URI
Datum izdavanja:
24.12.2019.
Posjeta: 1.149 *