DIFFERENTIATION OF MACROELEMENT CONTENTS IN NUTRIENT SOLUTION AND DRAINAGE WATER IN GROWING OF ANTHURIUM (Anthurium cultorum Birdsey) IN EXPANDED CLAY
Tomasz Kleiber
Agricultural University in PoznańAndrzej Komosa
Agricultural University in PoznańAbstract
Vegetation studies were conducted from 2002 to 2004, in two leading farms, located near Poznan where have obtained optimum anthurium (Anthurium cultorum Birdsey) yielding. Plants were grown in expanded clay with the application of fertigation with a standard nutrient solution (in mg·dm-3): N-NH4<14.0, N-NO3 105.0, P 31.0, K 176.0, Ca 60.0, Mg 24.0, S-SO4 48.0, Fe 0.840, Mn 0.160, Zn 0.200, B 0.220, Cu 0.032, Mo 0.048, pH 5.5 – 5.7, EC 1.5 – 1.8 mS·cm-1. Significant changes of macroelement contents were found in drainage water in comparison to nutrient solution. The most decreased contents (in %) of macroelements were found for phosphorus (51.2), potassium (26.7) and nitrogen (15.4). The EC value showed a downward trend of about 9.5%. Nutrients which concentration increased in drainage water were (in %): calcium (27.9), sulphur (14.3) and magnesium (5.5). The knowledge of variations of nutrient concentrations in drainage waters is the basis for the practical application of closed fertilization systems with the recirculation of nutrient solution.
Keywords:
anthurium, fertigation, macroelements, expanded clay, nutrient solution, drainage waterReferences
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Agricultural University in Poznań
Agricultural University in Poznań
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