Nutrition status of greenhouse tomato grown in inert media. Pt. 1. Macroelements
2003
Chohura, P. | Komosa, A. (Akademia Rolnicza, Wroclaw (Poland). Katedra Ogrodnictwa)
In experiments carried out in the years 1998-99 the effect of inert media and fertilization levels on the nutrition status of greenhouse tomato cv. Maeva F1 was investigated. Two feeding solutions were used: 1. containing (in mg/cubic dm): N-NO3 - 189, P - 62, K - 371, Ca - 190, Mg - 49, Fe - 0.84, Mn - 1.87, B - 0.32, Zn - 2.01, Cu - 0.048, Mo - 0.048, pH 5.5, EC mS/cm, and solution 2. with concentration increased by 20 percent, and three inert media: rockwool, polyurethane foam and expanded clay. In the index parts of the tomato the mean content of nutrients was (percent in d.m.): N - 3.69, P - 0.41, K - 5.30, Ca - 7.49, Mg - 0.55. No significant effect was found for the studied media on the nutrient content in the index parts of the greenhouse tomato, except for phosphorus. Fertilization levels also did not affect significantly content of these nutrients in the index plant parts
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