| Zamioculcas zamiifolia, a member of the family Araceae, as an indoor foliage plant with unique ornamental value was developed in recent years in the world. After being introduced to China, the commercial production developed rapidly. But little information is available regarding Zamioculcas zamiifolia and its cultivation. Growth characteristics and propagation characteristics of one-year old, two-year old and three-year old seedling of Zamioculcas zamiifolia were observed. The single-factor design and orthogonal design L9 (33) were used to carry out the containerized experiments of substrates and fertilization respectively. Different morphologic features of plant, wet weight and dry weight, Leaves chlorophyll value (SPAD), Net photosynthetic rate, leaf nutrients and the physical and chemical characteristics of substrates were measured seven months later. Suitable substrate for the growth of Zamioculcas zamiifolia was suggested, and proper level of nitrogen, phosphorus, potassium was put forward in this paper. The results were as follows:1. Zamioculcas zamiifolia has unique characteristics of the growth and propagation. A pinnate leaflets arises directly from rhizome which is the main propagation organ. Later, the secondary pinnate leaflets arises one after the other from the base of petiole. In general, only one pinnate leaflets arises from the base of every pinnate leaflets. Zamioculcas zamiifolia propagates by rhizome division. The growth stage of pinnate leaflets is from March to November, which divides into the formation phrase of leaf bud, the rapid growth phrase of pinnate leaflets, the mature phrase of pinnate leaflets. Every plant arise 2 to 3 pinnate leaflets annually.2. Substrates experiment indicates that the growth of Zamioculcas zamiifolia in Klasmann peat was better than in single peat (from Guangdong), 3peat (from Guangdong): 1perlite (v/v) and 6peat (from Guangdong) :1perlite (v/v). Because of Klasmann peat with properties of high porosity (total porosity of 89.17%, moisture content of 72.89%), pH stabilization, high content of organic matter (77.21%) and nutrient. Plant biomass production was significant greater in the Klasmann peat than in single peat (from Guangdong) , 3peat (from Guangdong) :1perlite (v/v) and 6peat (from Guangdong) : 1perlite (v/v).The dry weight (leaves and total plant) increased by 101.4%, 71.7%, 76.6% and 40.9%, 28.9%, 31.4% than that of single peat (from Guangdong) , 3peat (from Guangdong):1perlite (v/v) and 6peat (from Guangdong):1perlite (v/v) respectively. The wet weight (roots) and dry weight (roots) increased by 31.3% and 45.9% than that of single peat (from Guangdong) respectively. The single peat (from Guangdong) has low porosity (total porosity of 67.11%, air space of 7.88%), low content of organic matter (48.50%) and obvious declining of pH after treatment, so the growth of Zamioculcas zamiifolia was of a sort in it. The substrate's porosity was improved after adding perlite to peat (from Guangdong), in which the growth of Zamioculcas zamiifolia was better than in single peat (from Guangdong). But compared to Klasmann peat, the following properties of peat (from Guangdong) need to improve: the moisture content of porosity, property of pH stabilization and content of nutrient.3. For Zamioculcas zamiifolia, the growth performance was better with 200mg·L-1N and various growth index were better than that of 100mg·L-1 and 300mg·L-1 as a whole, the dry weight of leaf plant increased by 13.6% than that of the treatment of 100 mg·L-1.The growth performance was better with 50mg·L-1 P2O5, compared with 25mg·L-1P2O5, the wet weight of roots and dry Weight(roots, leaves and total plant) increased by 12.9%,11.1%,18.4%,13.4% respectively. With 350mg·L-1K2O, the growth performance was better and plant biomass production was greater, the dry weight of leaves increased by 12.4% and 10.1% than that of the treatment of 150mg·L-1 and 250mg·L-1 respectively, the dry weight of total plant increased by 7.6% than that of the treatment of 150 mg·L-1. In the condition of this experiment, the optimum fertilization concentration of NPK for Zamioculcas zamiifolia was N200mg·L-1, P2O5 50mg·L-1, K2O350mg·L-1, namely N: P2O5:K2O was 4:1:7 respectively.
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