ISHS Acta Horticulturae 567: IV International Strawberry Symposium
NUTRITIONAL STATUS OF STRAWBERRY FIELDS |
| Authors: | R. Niskanen, R. Dris |
| Keywords: | leaf analysis, macro- and micronutrients, soil fertility |
| Abstract:
Soil and leaf nutrient content data were collected in 338 commercial strawberry fields after harvest during 1984-1991 for cultivars Senga Sengana, Zefyr and Jonsok. Soils were mainly coarse textured and the humus content class was medium or high. The mean soil pH(H2O) was 6.4 and the mean value for pH-corrected Mn was 27. The mean values for the other extractable soil nutrients were: P 26, K 177, Ca 1616, Mg 183, B 1.1 and Cu 6.3 mg/l. On the average, the fertility class was good for soil pH, P, B and Cu, and satisfactory for K, Ca, Mg and Mn. For strawberry leaves, the mean nutrient concentrations were: N 19.1, P 2.8, K 15.0, Mg 2.7, Ca 9.3 and B 0.05 g/kg dry matter. Nutrient levels were lowest in the leaves of ‘Zefyr’. The average leaf N, P, Mg and B were within the recommendation limits, but Ca and K concentrations were considered to be low. Leaf nutrient concentrations were only slightly dependent on soil nutrients, the values of the linear correlation coefficients between soil and leaf nutrients for P, Mg, Ca and B were 0.22***, 0.29***, 0.33* and 0.37***, respectively. | |
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