Abstract
The AVRDC (Asian Vegetable Research and Development Center) soil science unit has developed a noncirculating hydroponics system which requires neither aeration, nor monitoring of pH, EC, temperature or nutrient level. Once the facility has been established, the only input required is the addition of nutrients once every two weeks. The composition of nutrient solution need not be changed for each crop. During the summer of 1986, soybean, green pepper, large-fruited tomato, melon and cucumber were all successfully grown. Yields of the latter three were 3.1kg (average fruit wt:130g), 2.34kg and 4.72kg per plant, respectively.
