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Proceedings of the International Plant Propagator's Society

Vol. 44

Title:
The Super Nutrient Film Technique (NFT) System

Author:
Bent Vestergard

pp: 214-217

Abstract:
HISTORY AND PURPOSE

The nutrient film technique (NFT) system was first tried out in 1941 in Shanghai, China, in a nursery called The Chemical Garden. This system was in operation until 1944, when it closed down because of the war. Its inventor stated that there were nutrient problems and that NFT was uneconomical. In 1956 the technique was again used in Sweden by a chemical firm but abandoned 2 years later because of nutrient solution problems. In 1964 BV Hydro Systems developed a system in Denmark for orchids and in the 1970s a large number of experiments were conducted. However, no really important developments occurred before 1972, when Alan Cooper in England conducted the first commercial experiments with NFT. Since then, a large number of people in different countries have attempted to use NFT with a varying degrees of success. The original NFT system developed in England is—as the name implies—a thin nutrient film running down a gully or trough. The system is based on the

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