关键词: 观叶植物, 水培, 营养配方, pH

Abstract: Philodendron selloum, Spathiphyllum floribundum cv. ‘Mauna Loa’, and Dieffenbachia amoena cv.‘Tropic Marianne’ were water cultured in 8 different nutrient solutions and in the well water (CK), respectively, to study the effects of different nutrient solutions on their growth.The results showed that P. selloum and S. floribundum cv.‘Mauna Loa’ could grow well in solution supplemented with 11.2 mg/L NH4⁺-N, 134.4 mg/L NO₃^--N, 24.8 mg/L P, 187.2 mg/L K, 96.0 mg/L Ca, 28.8 mg/L Mg and 38.4 mg/L S.Nutrient solution containing 11.2 mg/L NH4⁺-N, 124.6mg/L NO₃^--N, 46.5 mg/L P, 202.8 mg/L K, 88.0 mg/L Ca, 14.4 mg/L Mg and 19.2 mg/L S gave the best result for the growth of ^{D. amoena} cv.‘Tropic Marianne’.And it was important to maintain the stable value of pH for water culture.

Key words: foliage plants, water-culture, nutrient solution, pH