Abstract: Thirty nine different kinds of the higher terrestrial plants were experimentally grown on large area of water borne soilless culture in Tai Lake. All tested plants could grow, flower .and fruit themselves. Lolium perenne and lpomoea aquatica have given a good harvest, the yield of fresh shoot of the former was 2710kg in 0.07 ha, the latter was 6350 kg which were 50 percent more than the yield obtained from those cultured on land. Besides, the other 10 different kinds of the plants, as Cucumis sativus, Luffa cylindrica, Fragaria ananassa, Glycine max etc. grew as well as those cultivated conventionally. There were two methods of the soilless culture we used. One was the use of polypropyrene sacks filled with balls of the rigid expanded polystyrene or its broken pieces. The other was the floating frame which was made of the rigid expanded polystyrene, bamboo twig and plastic sheet, looking like a pot. Both the polypropyrene sacks and floating frames were linked together and floated on the lake, in which the young plants were grown. The utilization efficiency of the fertilizer Co(NH2)2+ KCI+Ca(H2PO4)2H20 of above methods was high, about 70% of fertilizers were used by the plants. The experiment of soilless culture on large water surface of Tai Lake has given successive results in growth of terrestrial plants.

Key words: Float, Lake culture, Terrestrial plant