Hi all,
Here's a video summarising my trip to Dennerle in Germany recently.
I hope you like it!
Cheers,
George
Here's a video summarising my trip to Dennerle in Germany recently.
I hope you like it!
Cheers,
George
Yes, there is a discussion of this in <"Low Tech Plants">.Suprised how many they grow "dry" no suprise they is no algae on them! Might explain why it takes these plants time to adapt submerged and the changes in leaf shape we see which is sometimes so very different from what you get in the box. Makes me think there very few truly aquatic plants which spend their whole life submerged
Suprised how many they grow "dry" no suprise they is no algae on them!
Suprised how many they grow "dry" no suprise they is no algae on them!
Might explain why it takes these plants time to adapt submerged and the changes in leaf shape we see which is sometimes so very different from what you get in the box. Makes me think there very few truly aquatic plants which spend their whole life submerged
Hi all,Yes, there is a discussion of this in <"Low Tech Plants">.
The "problem" is that obligate aquatic plants, like Blyxa, Ceratophyllum & Potamogeton spp., (and floaters like Limnobium and Pistia) are more expensive to produce commercially.
Which means that unless there is a demand (that will pay a financial premium for them) they tend to go out of production.
cheers Darrel
They nearly all are. Some are plants, like Cryptocoryne spp., that grew in situations where you have regular wet (submerged) and dry (emersed) seasons, and others are marsh plants that will grow submerged, even though not necessarily for ever.I think alot of the plants we use are bog or marsh plants?
Do you think the sprinklers in these nurseries like Dennerle and Tropica aren’t just pure water for moisture @dw1305 ? I think they could be adding part of the nutrient schedule that may be more problematic to keep in solution for longer or needs more applications (e.g. Magnesium, Calcium nitrate, Fe+Micros….). Any thoughts?Hi all,They nearly all are. Some are plants, like Cryptocoryne spp., that grew in situations where you have regular wet (submerged) and dry (emersed) seasons, and others are marsh plants that will grow submerged, even though not necessarily for ever.
At the bottoms of turloughs in Ireland you find a specialized suite of plants that can survive submergence, but it includes some plants like Creeping Bent Grass (Agrostis stolonifera) and Creeping Buttercup (<"Ranunculus repens">) that you can also find in damp lawns etc.
cheers Darrel
I'd guess that the sprinkler / fogging / misting system is <"probably rain-water">, it avoids problems with salt deposition on leaves and blocked nozzles etc*.Do you think the sprinklers in these nurseries like Dennerle and Tropica aren’t just pure water for moisture @dw1305 ?
I'd guess they use an <"ebb and flood system"> to flood the benches and supply nutrients. You can see the depth of the staging in the Mother-plant section (behind George in the still frame) and that is definitely for ebb and flow. At 2:10 you can see the flood stage.I think they could be adding part of the nutrient schedule that may be more problematic to keep in solution for longer or needs more applications (e.g. Magnesium, Calcium nitrate, Fe+Micros….). Any thoughts?
It would make sense. <"Tomato growers"> aim for 1000 ppm CO2 when the sun is out. It is analogous to terrestrial "Estimative Index", plenty of everything.I can't remember where I read it, but they apparently also maintain higher levels of CO2 in their greenhouse than standard atmospheric levels.
ahh so that's why @George Farmer looks a bit dizzy on the vid. . . . I can't remember where I read it, but they apparently also maintain higher levels of CO2 in their greenhouse than standard atmospheric levels.
ahh so that's why @George Farmer looks a bit dizzy on the vid
Reminds me my days when growing cannabis in my cloth cabinet during my student years and concocting some yeast and sugar vessels to increase CO2. A shame I didn't take pictures. I was an outlaw.. . . . I can't remember where I read it, but they apparently also maintain higher levels of CO2 in their greenhouse than standard atmospheric levels.
Reminds me my days when growing cannabis in my cloth cabinet during my student years and concocting some yeast and sugar vessels to increase CO2. A shame I didn't take pictures. I was an outlaw.
c'mon, you won't trick us, we all know you've been making vodka at the same time!Reminds me my days when growing cannabis in my cloth cabinet during my student years and concocting some yeast and sugar vessels