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What is ghvi?
Greenhouse vegetable information is a web site based in New Zealand.
It is maintained by John White Horticultural Consultants.
The web site contains greenhouse vegetable information for commercial growers and information on the principles and processes used in managing greenhouse crop production systems. To date the NFT (nutrient film technique), media (soilless culture) and nutrition sections are included with more to be added in the near future. This web site will be continuously updated.
Click on the topics in the left hand bar for a detailed listing of the current contents of the web site.
John White has been involved in providing specialist extension and research services to the greenhouse industry in New Zealand since 1958. Between 1958 and 1981 he was employed by the Ministry of Agriculture in research and extension work and since 1981 has been providing private consulting services to growers in Australia and New Zealand. During these years the greenhouse industry in NZ has changed greatly with many of the changes being responses to research, development and extension work led by John. The NZ greenhouse industry now uses some very high technology, but John's experience covers the whole gamut from older soil growing systems in unsophisticated greenhouses through to the present. This long experience has given a very good understanding of the practical problems and difficulties faced by growers, and is combined with a depth of knowledge of the science involved in growing greenhouse vegetables and managing greenhouse systems.
The greenhouse vegetable information presented in this web site has all been used by growers and is proven in practice by growers. The information provided is both practical and based on scientifically correct principles. It should have immediate value to growers in NZ and to other growers in any country, with adaptations for local climates and conditions. Much of the information could be of interest and value to growers anywhere. All information items are dated, and where appropriate references to other literature is included.
This website presents greenhouse vegetable information that has most commonly been requested by new and existing growers using John's consulting services. Consulting services are still available to growers and others in New Zealand and Australia. All of the information available and some of the services can be provided via the internet to clients anywhere. If you are interested or require more information on consulting services please send an email.
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