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The Association for Vegetables Under Protection (AVUP) was founded in 1977 and has a membership that consists of an active group of commercial growers, hobbyists as well as associated companies involved in the intensive production of mainly vegetable crops in a protected cultivation system (greenhouses, net structures, mini tunnels, cloches, modern soil covers etc.).  Most of the growers use one or more of the known greenhouse production systems although a growing number of growers utilize soil again as a growth medium. There is also a growing interest in organic production under protective coverings.

In October 2005 it was decided that the association’s name should change to Intensive Agriculture South Africa (IASA). This was done so that producers who grow crops other than vegetables would also be able to benefit from the vast knowledge that has been built up over the last thirty years.

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Membership Application Form

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Nutrient solutions and Greenhouse management handbook available at Greenhouse Hydroponics.