Some indices of nitrate metabolism in lettuce grown by the nutrient film technique on varying nutrient solutions
1986
Myczkowski, J. (Agricult. Univ., Krakow (Poland). Lab. of Plant Physiology) | Rozek, S. | Sady, W. | Wojtaszek, T.
Nitrate content in lettuce depended on the type of the nutrient solution and on cultivar and varied greatly from 4.25 to 34.5 mg NO3/g exp (-1) of dry matter. Nitrate reductase activity was lower at the highest (100% and 75%) and lowest (23.3% and 26.9%) participation of N-NO3. The highest nitrate concentrations were noticed when fertilization was carried out using the nutrient solution with the highest share of reduced form of nitrogen
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