Multi-level greenhouse system producing strawberries and lettuce .
High-density lettuce grown in a multi-level hydroponic system .
Plants for Space Optimisation Systems
Small-framed plants such as herbs , lettuce , salad greens , microgreens , and strawberries are the most commonly grown crops in vertical or other space optimisation system designs , and these allow higher crop densities to be maintained . However , there are other crop options such as the use of dwarf or bush varieties of hot and sweet capsicum , cucumber , and tomato , particularly in moveable bench and staggered systems . Genetically compact growth habits or mini varieties bred for container production can be high yielding and a good option for a space optimisation system , provided sufficient light intensity is provided to support high-quality fruit production . Plants may also be pruned and trained to fit the system and prevent excess upward growth , this is particularly relevant with cut and regrow salad and herb crops . Where a number of different lettuce types are being grown in tiered systems , it is advisable to have the coloured types ( red and brown varieties ) on the upper levels as higher light is required for good colouration , and the green types on the lower levels . Smaller indoor gardens can take advantage of space optimisation designs just as easily as larger commercial greenhouses , however , some modification may be required depending on the space available . Growing channels can be wall mounted where that is an option , provided an air gap is provided between the wall surface and the system to allow air to flow all around the plant . These types of systems are particularly attractive and productive with crops that can be trained to trail downwards such as rosemary and thyme or ‘ tumbler ’ tomatoes and many flowering annuals .
“ Genetically compact growth habits or mini varieties bred for container production can be high yielding and a good option for a space optimisation system .”
Space optimisation in both small indoor gardens and larger greenhouse environments services the vital purpose of maximising yields and productivity from a limited area . However , it is not as simple as cramming in as many plants as possible within a small space as light then becomes the limiting factor for productivity and restricted air flow can lead to high humidity and disease outbreaks . Careful consideration of the height , design , light penetration , and intensity and air flow must be given to ensure a space optimisation system is going to give maximum benefits .
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