vol. 7, nr. 3 (2006)
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Growing of greenhouse cherry tomato in coconut fibre with differentiated nitrogen and potassium fertilization.
Part I. Yielding |
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Włodzimierz Breś, Bartosz Ruprik |
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Department of Horticultural Plant Nutrition, Agricultural University, ul. Zgorzelecka 4, 60-198 Poznań |
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vol. 7 (2006), nr. 3,
pp. 527-537
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abstract:
The studies were aimed at optimization of nitrogen and potassium nutrition of cherry tomato grown in coconut fibre. The studies were carried out in a greenhouse in the years 2000-2002. Three tomato cultivars (Lycopersicon esculentum var. cerasiforme Alef.): Conchita F1, Flavorino F1 and Favorita F1 were grown. Applied nutrient solutions differed in the amount of nitrogen, potassium and N:K ratio. Yield (early, marketable and out-of-selection yields) and fruit quality were evaluated. Both the amounts of nitrogen and potassium, as well as the N:K ratio in the nutrient solutions significantly affected the yield of tomato. Depending on the cultivar, the optimal N:K ratio was within the range of 1:1.3-1.4, the nitrogen content was within 207-250 mg dm-3, and potassium content ranged from 298 to 325 mg dm-3. No explicit effect of the applied nutrients on the nutritive values of the grown tomato cultivars was found.
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keywords:
cherry tomato, nutrient solution, coconut fibre, yielding
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original in:
Polish
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