Izvorni znanstveni članak
https://doi.org/10.33128/pc.21.1-2.1
Several-year investigation of plant-feeding capacity of soil in orchards of Međimurje
Ivo Miljković
; Čazmanska 2/III, Zagreb, Hrvatska
Sažetak
In recent years, control of the soli plant-feeding capacity in orchards has been performed by the method of foliar diagnosis, because it is considered more reliable than soil analysis. The paper presents the results of several years of research on concentration of N, P, K, Ca and Mg, and the sum of cations and cation balance. Investigations were carried out in Donje Međimurje in orchards Nedelišće, Čehovec and Cirkovljan. Orchards were raised on a series of alluvial soils. In the orchard Nedelišće research was carried out on the varieties: Starkrimson, Golden Delicious, Idared and Golden Spur. In the orchard Čehovec research was carried out on varieties: Wellspur Delicious, Golden Spur, Golden Delicious and Idared, and in the orchard Cirkovljan on the varieties: Golden Delicious, Idared, Melrose and James Grieve. According to the criteria put forward by the researchers Bould (1966), Fiedler (1970), Grouppe (1960), Lalatta (1986), Kenworthy (1963) and others, apples are well supplied with biogenic elements. Larger variations were found between the concentrations of N, K and Ca. Genetic or varietal specifics are reflected in the concentration of N, K and Ca, while Mg and P levels are generally similar in all varieties. In the orchard Nedelišće there is significantly higher concentration of N and K in the leaves of Starkrimson than in varieties Golden Spur, Golden Delicious and Idared. A significantly lower concentration of N was found in the leaves of Idared than in other three varieties. Significantly higher concentration of Ca was found in the leaves of Golden Delicious and Golden Spur than in Idared and Starkrimson. In the orchard Čehovec significantly higher concentration of N were found in the leaves of Golden Delicious than in varieties Golden Spur, Wellspur Delicious and Idared. Significantly higher concentration of Ca was found in the leaves of Golden Delicious and Golden Spur than in Wellspur Delicious and Idared. The leaves of Idared contained significantly lower concentration of K than other three varieties. In the orchard Cirkovljan significantly higher concentration of N and lower concentration of Ca were found in the leaves of the variety James Grieve than in varieties Idared, Golden Delicious and Melrose. The highest concentration of K was found in the leaves of Golden Delicious, and the lowest in the leaves of Idared. The difference was statistically significant compared to the varieties Melorese and James Grieve. The compliance with the results from our previous studies of genetic specificity of mineral nutrition was established for varieties Golden Delicious, Idared and Starkrimson in plantations on pseudogley soil (Dugo Selo, Donja Zelina, Katoličko Selište) in Posavina and Moslavina (Anić Jelka and Miljković I.; 1994) and the plantation Borinci on eutric brown soil on calcareous loess in Slavonia (Miljković I. and Vrsaljko A.; 2009).
Ključne riječi
apple; variety; foliar diagnosis; genetic specificities
Hrčak ID:
186187
URI
Datum izdavanja:
31.8.2017.
Posjeta: 1.460 *