Articles
DIAGNOSIS AND INTERPRETATION BASED ON PLANT ANALYSIS OF CUPRESSUS GLABRA. USEFULNESS OF DIAGNOSIS AND RECOMMENDATION INTEGRATED SYSTEM (DRIS)
Article number
401_45
Pages
373 – 380
Language
Abstract
Cupressus glabra seedlings were grown during a vegetative period in different peatlite mixtures 60/40 (v/v). A nutrient solution adjusted to the requirements of these conifers was applied by drip irrigation.
Previously sand culture assays were performed to compare the nutrient levels obtained in plants growing on an inert substrate (sand culture) to those obtained in plants growing on different peat mixtures used.
Previously sand culture assays were performed to compare the nutrient levels obtained in plants growing on an inert substrate (sand culture) to those obtained in plants growing on different peat mixtures used.
The highest biomass produced using peatlite substrates was obtained with the mosspeat-vermiculite mixture (MP+V).
The average concentrations obtained by foliar analysis in three different seasons during the growth cycle allow us to give the nutritional diagnostic of plants, comparing with the nutrient concentrations in the reference ones (sand culture).
The nutrient levels obtained by hydroponics, the application of nutrient ratios and the principles of the Diagnosis and Recommendation Integrated System (DRIS) were used to interpret the nutritional status of the plants.
DRIS could be one additional tool to explain the limiting factors of growth of this kind of plants when they are grown in nurseries, but reference data must be increased.
Authors
E. Eymar, C. Cadahía, A. Sánchez, I. Hassan
Keywords
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