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...Plant soil https doi org s regular article phosphorus and potassium nutrition of a tropical waterlily nymphaea used for commercial flower production martin vh staines kathy l sassoon hans lambers published online april received december accepted march the author abstract results total increased with background aims waterlilies spp increasing p supply but decreased k are ancient iconic plants scientific knowledge leaf concentration their nutrient requirements is scarce we investigated from to mg g dry weight increas responses ing in cultivar had no effect on experi ment calcium magnesium concentrations methods two studies were con generally low as was zinc ducted simultaneously over weeks experiment final size three amounts fertiliser differing content declined supplied either four six or times conclusion growth flowering similar varied recorded every requirement detailed measurements made very high it possible that would have leaves collected analyses responded greater than this at wee...