Abstract:

In order to solve the problem of simple and long-term fertilization of Phalaenopsis amabilis, a pot cultural experiment was conducted by application of slow/control release compound fertilizer in Phalaenopsis amabilis. Meanwhile, the biological effects among the special fertilizer of flowers, an import release fertilizer and the slow/control release compound fertilizer were compared and verified. The result indicated that the slow/controlled release fertilizer can obviously promote the growth of big seedlings of Phalaenopsis amabilis compared with other common flower fertilizers and no fertilizer treatment, and can obviously control the height of flower-stalk and quality of flowers. According to the result of experiment, the slow/controlled release compound fertilizer with a releasing period of 180 days showed the best comprehensive effect on the growth, height of flower-stalk and quality of flowers of Phalaenopsis amabilis, which was showed in dark green and glossy leaves, early initial time of flowering, lasting flowering period with a good number and size of flowers. Compared with the effect of the imported controlled release fertilizer, the Phalaenopsis amabilis treated by the slow/controlled release compound fertilizer showed a respective rise of 1.7%, 1.7%, 1.9%, 5.9%, 1.7%, 11.0%, 7.7% and 8.9% in the area of leaf, number of leaf, fresh weight of leaf, leaf display, height of flower-stalk in the late stage of growth, flowering period, length of flower diameter and the number of flowers.