All you need to know about HNT (The New Way of Growing)
Interest is increasing in the Dutch HNT project which aims to optimise crop production without unnecessary consumption of energy and water. The recent publication of a Dutch language review summarising what HNT has achieved so far has stimulated further interest and though UK growers have benefitted from occasional glimpses of the ideas underlying HNT, it has been difficult to see the wider picture.
That is about to change.
GrowSave has organised two seminars so that you can discover what important opportunities Het Nieuwe Telen or ‘New Way of Growing’ (HNT) can offer you.
This video features Aat Dijkshoorn (LTO Glaskracht) who explains the background to the Next Generation Growing project and grower Gerard Aarts who elaborates on how new insights resulting from the work have helped him to save energy without major investment.
Dates and venues
Wednesday 20th April - CMW Horticulture Ltd, Brough, HU15 2BZ. Click here to book your place.
Thursday 21st April - Harlow Health Resource Centre, Harlow, CM20 3DT. Click here to book your place.
Four Dutch experts will deliver these seminars (free to levy payers).
Jan Voogt, Letsgrow.com
Co-author of ‘The Basic Principles of HNT’. His special fields of interest are the physical background of plant behaviour and interaction with climate based on the water and energy balance. Jan is one of the leading researchers and consultants in the current transition of the Dutch greenhouse industry towards ‘The New Way of Growing’.
Jan's presentation will explain plant behavior based on 3 balances: Energy Balance, Water Balance and Assimilate Balance and the following top tips:
- Homogeneous climate
- Improved Humidity Control
- Prevent Outgoing Longwave Radiation
- How to Keep an active climate without minimum Tube
- How to keep plants ‘in balance’
René Beerkens, Hoogendoorn Growth Management
René is already well known to many UK growers, having delivered a number of seminars and presentations for GrowSave and the Tomato Growers Association. René is a grower’s son with a horticultural degree who now specializes in helping growers to optimize their greenhouse climate, irrigation and energy controls.
He will present the following regarding to climate control:
- How to maintain a homogenous climate with simple adjustments in ventilation controls
- On what conditions should a screen be closed or opened
- How to maximize Photosynthesis during spring and summer time based on humidity controls
- How to keep the plants ‘in balance’ by using the right controls with the right influences based on radiation
Paul Arkesteijn, Svensson
Many UK growers will know Paul, who has been a frequent visitor as well as a popular speaker at previous GrowSave events. Paul has been Svensson’s Climate Performance Analyst since 2009 so he has devoted a lot of time and effort into researching the greenhouse climate under screens. Paul will explain how attitudes to the use of screens and double screens are changing as a result of the work on HNT. Paul's presentation will cover:
- How to use your climate screens to get a higher crop temperature at night
- How to reduce the humidity in the greenhouse under closed energy saving screens, without adjusting a screen-gap?
- How more energy to save with a second screen?
Peter Kamp, Priva
Well known Dutch greenhouse climate consultant Peter Kamp has spearheaded Priva’s development of TopCrop Monitor, a crop monitoring tool which Priva claim allows the grower to fine tune climate settings according to what is happening within the plant itself rather than on climate measurements alone. Peter will explain the TopCrop concept and report on results from several years of testing on 12 commercial nurseries in The Netherlands.
Levy payers who would like to learn more about HNT can register for the seminar venue that suits them best below. Spaces for non levy payers will be given on a first come first served basis as these spaces are strictly limited.
How to book
Wednesday 20th April
- Venue: CMW Horticulture Ltd
- Address: Stonepit Road, South Cave, Brough, HU15 2BZ
- Time: Arrive from 9:00am for 9:30am start. Finish at 4:30pm.
- Click here to book your place
Thursday 21st April
- Venue: Harlow Resource Centre - Conference room B
- Address: Harlow Leisurezone, Second Avenue, Harlow, Essex, CM20 3DT
- Time: Arrive from 9.30am for 10:00am start. Finish at 5:00pm.
- Click here to book your place