Macrosymptoms in higher plants resulting from imbalanced nitrogen and phosphorus supply [maize, Zea mays, tomatoes, Lycopersicum esculentum]
1981
Fischer, G. (Technische Univ. Berlin (Germany, F.R.). Inst. fuer Nutzpflanzenforschung. Fachgebiet Pflanzenernaehrung)
The aim was to study whether the macrosymptoms of nitrogen deficiency or toxicity in its typical form are influenced by simultaneous phosphorus deficiency or excess supply, or on the other hand, whether the typical symptoms of phosphorus deficiency or excess are affected by simultaneous nitrogen deficiency or excess supply. The results show that (assuming that "complex" symptoms occur) neither nutrient influences the development of macrosymptoms in their typical form as caused by other nutrient. Tomato showed clear "complex" symptoms while maize only showed the macrosymptoms of one nutrient.
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