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Abstract

AVRDC soil science developed noncirculating hydroponic system which requires neither aeration, nor any check of pH, EC, temperature or nutrient. Once the facility is set up, the only input required is the addition of nutrients once every three weeks. Composition of nutrient solution need not change for each crop. During 1986, soybean, sweet pepper, large-fruited tomatoes, melon, and cucumber were all successfully grown during the summer. Yields of the latter three were 3.1 kg (average fruit wt: 150 g), 2.34 kg and 4.72 kg/plant, respectively. [AS]

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