Effect of fertilization with different forms of nitrogen on greenhouse lettuce quality and its changes during storage. Pt. 2. Nitrate and nitrite content
1994
Rozek, S. (Agricultural University, Krakow (Poland). Dept. of Plant Physiology) | Sady, W. (Agricultural University, Krakow (Poland). Section of Soil Fertilization and Cultivation) | Leja, M. | Myczkowski, J.
The results are given of two years investigations concerning the effect of nitrate, amonium and urea nitrogen fertilizers applied using the film nutrient technique (NFT) on nitrate and nitrite reductase activity, nitrate and nitrite level, and also free amino acid content in greenhouse lettuce harvested and stored at low (5 degrees C) and high (20 degrees C) temperature. Among the determined compounds nitrite reductase and nitrates seemed to be the most stable during the storage period
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