Anti-slakken schapenwolkorrels. Aquaponic Geodesic Dome Greenhouse. ETFE. Ethylene tetrafluoroethylene, ETFE, a fluorine based plastic, was designed to have high corrosion resistance and strength over a wide temperature range.
ETFE is a polymer and its source-based name is poly(ethene-co-tetrafluoroethene). ETFE has a relatively high melting temperature, excellent chemical, electrical and high energy radiation resistance properties. When burned ETFE releases hydrofluoric acid. Chemical, mechanical, physical, and thermal properties[edit] Useful comparison tables of PTFE against FEP, PFA and ETFE can be found on DuPont's website, listing the mechanical, thermal, chemical, electrical and vapour properties of each, side by side.[1] ETFE is effectively the high strength version of the other three in this group, often featuring slightly diminished capacities in other fields by comparison.
Combustion of ETFE occurs in the same way as a number of other fluoropolymers, in terms of releasing hydrofluoric acid (HF). ETFE resins are resistant to ultraviolet light. Heliotroop. Les Serres Dômes. Vector Foiltec. Internet of Farming. Growing UP in Manhattan. How to make the ultimate compost bin. The frame of recycled cedar posts stacked on concrete pavers to keep the wood off the ground.
Coming together: more salvaged and recycled cedar. Former deck stairs create the base. We could have parked our deck chairs right there, it’s so sturdy! Hardware cloth on; first bin complete! Complete! The finished product! Here is a step by step example of a compost bin ! ++ Here. No Dig Natural Gardening. Your Complete Instructions for Natural Gardening Success Behind every vegetable plant is a person with gardening desires — you!
And behind you there are bees, worms... and millions of other live inhabitants of your garden soil. To keep them happy, here's how to build your vegetable plot. Permacultuur Nederland. Postsaver. Doel Houten palen rotten sneller op het punt lucht - grond, terwijl de rest van de houten paal nog in perfecte staat is: Onze paalbeschermer vermijdt dit probleem.Onze paalbeschermer verdubbelt de levensduur van de houten paal.
Onze paalbeschermer lost het probleem op De paalbeschermer is gemaakt uit een zware buitenlaag in polyethyleen met een smeltbare bitumen afdichting binnenin. De paalbeschermer is 35 cm lang. Resultaat: een sterke dubbele bescherming dat de paal beschermt tegen rotting. Allerlei vragen: Zijn paalbeschermers duur? Rekening houdend met de verdubbeling van de verwachte levensduur van de houten paal, is de paalbeschermer niet duur. Hoelang beschermt de paalbeschermer de paal? Het gebruik van de paalbeschermer verdubbelt de verwachte levensduur van de paal. Postsaver en ecologie: Postsaver is onoplosbaar in water en zal gedurende jaren onaangetast blijven in de aarde.
Hoe te verkrijgen? Wat doen wij? Anderzijds plaatsen wij zelf de paalbeschermers aan onze palen. Scenarios for the future of urban farming. Straw Bale Gardens. Here’s a very simple technique for gardening in tight spots and in places with no/terrible soil (from the arctic circle to the desert to an asphalt jungle).
It’s also a great way to garden if you have limited mobility (in a wheel chair). What is Straw Bale Gardening? You simply plant your garden in straw bales. Here’s an example of what a straw bale garden looks like (via author/expert Joel Karsten — he’s got a good book on the topic and he teaches it in seminars) As you can see, the basic technique is actually quite simple. How to grow a Straw Bale Garden There are lots of techniques on how to grow a straw bale garden. Days 1 to 3: Water the bales thoroughly and keep them damp.Days 4 to 6: Sprinkle each bale with ½ cup urea (46-0-0) and water well into bales. Essentially, plant the seedlings like you would do in the ground. Remember, the bales (like most above ground gardening techniques) will need extra water and fertilizer during the early period.
Plants Number Per Bale. Tuinposter.be. Unopiù. Zelf shiitake kweken.