ISHS Acta Horticulturae 487: VI International Symposium on Processing Tomato & Workshop on Irrigation & Fertigation of Processing Tomato
NUTRIENT UPTAKE BY PROCESSING TOMATO IN GREECE |
| Authors: | M. Christou, Y. Dumas, A. Dimirkou, Z. Vassiliou |
| Keywords: | Lycopersicon esculentum Mill., N, P, K, Ca, Mg concentration, irrigation, N fertilization |
| Abstract:
Processing tomato, variety Justar, was grown in a field experiment in Aliartos Viotia in Greece, for two years, in order to study the effect of three levels of microsprinkle irrigation levels and of three levels of N fertilization, on tomato yield and quality. In this work the effect of these two factors on the nutrient concentration in the plant material are reported. The above ground plant parts at harvest time were separated in vegetative parts, green and red fruits and were analyzed for N, P, K, Ca and Mg. The effect of the three irrigation levels on the concentration of plant nutrients N, P, K, Ca, and Mg in each plant part, was significant only in a few cases. On the other hand the increase of the level of N fertilization increased the concentration of N in all the above ground plants parts without affecting the concentration of the rest plant nutrients. The total amount of N, P, K, Ca, and Mg taken up by the analyzed plant parts corresponding to each square meter of tomato crop for the two years, as well the amount of nutrients needed for the production of 1 ton of red tomato fruits, were calculated. | |
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