Sökning: "Karl-Johan Bergstrand"
Hittade 2 avhandlingar innehållade orden Karl-Johan Bergstrand.
1. Approaches for mitigating the environmental impact of greenhouse horticulture
Sammanfattning : 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. LÄS MER
2. Variables limiting efficacy of slow filters integrated into closed hydroponic growing systems
Sammanfattning : 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. LÄS MER
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