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Controlling the micrometeorological conditions and the water and nutrient supply for vegetable production in low-energy greenhouses

Description
Staff
Publications
Partners

2009 - 2014

The project is part of the joint research project “ZINEG – The low energy greenhouse” of the research network Berlin-Hannover-Munich-Osnabruck. It focuses on plant production in greenhouses using minimal fossil energy for heating and thereby considerably reducing CO2 emissions. To accomplish this, process-engineering and cultivating measures are combined in a system oriented approach. In the cluster Berlin-Grossbeeren-Potsdam, the focus lies on the closed operation mode, based on utilizing surplus solar energy.

Cooperation Partners

NAME
Location
Country
Humboldt-Universität zu Berlin, Fachgebiet Biosystemtechnik
Berlin
Germany
Leibniz Institute for Agricultural Engineering (ATB) Potsdam-Bornim
Potsdam
Germany
Leibniz Universität Hannover, Biosystems & Horticultural Engineering Section (BGT)
Hanover
Germany
Lehr- und Versuchsanstalt für Gartenbau Hannover-Ahlem
Hanover
Germany
Technische Universität München, Chair of Horticultural Engineering
Munich
Germany
Dienstleistungszentrum Ländlicher Raum – Rheinpfalz
Neustadt an der Weinstraße
Germany
Osnabrück University of Applied Sciences, Fachgebiete Zierpflanzenbau und Technik im Gartenbau
Osnabrück
Germany
Humboldt-Universität zu Berlin, Division of Horticultural Economics
Berlin
Germany
Leibniz Universität Hannover, Center for Business Management in Horticulture and Applied Research
Hanover
Germany
Kuratorium für Technik und Bauwesen in der Landwirtschaft e. V.
Darmstadt
Germany

Controlling the micrometeorological conditions and the water and nutrient supply for vegetable production in low-energy greenhouses

This, however, results in an indoor climate which significantly differs from that in conventional greenhouses: At high solar radiation intensity, temperature and relative humidity of the air within the greenhouse are kept very high in order to extract and store as much thermal energy as possible while in periods with low solar radiation, the stored thermal energy for greenhouse heating is limited. Therefore, in Grossbeeren, we investigate how much we can alter micrometeorological conditions but still allow plant growth without negative effects on yield and quality. The restrictions that we find will serve as important guidelines for the operation of low-energy greenhouses. Based on the possibilities of the closed operation mode such as high CO2-concentrations and constraints such as extremely low and high temperatures, specific control strategies for climate, irrigation and fertilization will be developed and tested.

More information: www.zineg.de

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