Search for dissertations about: "Karl-johan Bergstrand"
Found 2 swedish dissertations containing the words Karl-johan Bergstrand.
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1. Approaches for mitigating the environmental impact of greenhouse horticulture
Abstract : Greenhouse horticulture creates environmental issues of different kinds. Use of energy for heating and lighting and pollution by pesticides and nutrients are major known problems, but impacts on the landscape and light emissions from supplementary lighting have also attracted attention. READ MORE
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2. Variables limiting efficacy of slow filters integrated into closed hydroponic growing systems
Abstract : For sustainable production of greenhouse vegetables and ornamentals, losses of water and nutrients must be avoided. Closed hydroponic systems are highly efficient in their use of water and nutrients, produce high yields and minimise the needs for soil sterilization. READ MORE