ISHS Acta Horticulturae 715: VIII International Symposium on Vaccinium Culture
THE EFFECT OF FERTIGATION ON THE NUTRIENT STATUS AND YIELD OF HIGHBUSH BLUEBERRY CV. ´BLUECROP´ |
| Authors: | J. Glonek, A. Komosa |
| Keywords: | drip fertigation, solid fertilizers, highbush blueberry |
| Abstract:
The main aim of this experiment was to determine the effect of fertigation on the yield and nutrient status of highbush blueberry cv. ‘Bluecrop’. The experiment was established in 2002 with 10-year old highbush blueberry, which was grown on the brown podzolic soil made of acid light sands in the upper soil layer of 0-62 cm. Treatments were 3 levels of fertigation (F-1, F-2, F-3 - with pH 5.50) and a control (C) which was the irrigation of clean water with pH 7.33. The nutrient solution in the first fertigation treatment (F-1) contained (in mg•dm-3): 100 N (90 N-NO3 + 10 N-NH4), 30 P-PO4, 60 K, 30 Mg, 0,30 B, 0,05 Cu and 0,03 Mo. Treatments F-2 and F-3 contained 50 % and 100 %, respectively, higher concentrations of macroelements than in F-1. At the beginning of the experiment, on the basis of soil analyses, solid fertilizers were applied to obtain the standard soil nutrient levels. After the first year of the experiment the positive significant effect of F-2 fertigation treatment on the yield of highbush blueberry cv. ‘Bluecrop’ was found. Fertigation treatments with F-1, F-2 and F-3 caused significant increase on iron content in the leaves. This effect was not found for the other macro and microelements. Leaf analyses showed satisfactory levels of nitrogen, phosphorus, potassium, calcium and magnesium in highbush blueberry plants. | |
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