tag:blogger.com,1999:blog-2571100417242238211.post4558212634414650266..comments2023-09-29T10:04:33.858+01:00Comments on Roger Brook - the no dig gardener: Probing rootsRoger Brook - No Dig Gardenerhttp://www.blogger.com/profile/16210160273591839142noreply@blogger.comBlogger12125tag:blogger.com,1999:blog-2571100417242238211.post-28516676024621345412014-06-29T22:33:20.699+01:002014-06-29T22:33:20.699+01:00Fascinating stuff as ever Roger, I think you ought...Fascinating stuff as ever Roger, I think you ought to put your posts together to form a book. I was once told that the pressure exerted by a large tree to draw water and nutrients to its full height was enough to implode a glass milk bottle. Have you ever heard this and if so has it ever been verified?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2571100417242238211.post-19119935950363801372014-06-29T15:18:04.421+01:002014-06-29T15:18:04.421+01:00I would think different plants might vary in such ...I would think different plants might vary in such a response to and the critical temperatures might differ..<br />I would rather put it differently that if anything inhibits water uptake to less than what they potentially might transpire, then such stress causes them to close their stomata. So very rapid transpiration at high temperatures might very well be in excess of what water they can Roger Brook - No Dig Gardenerhttps://www.blogger.com/profile/16210160273591839142noreply@blogger.comtag:blogger.com,1999:blog-2571100417242238211.post-33185338001241393712014-06-29T04:01:35.124+01:002014-06-29T04:01:35.124+01:00Very good article Roger. Very thorough. I do have ...Very good article Roger. Very thorough. I do have a question. I learned in our Master Gardening class that when temperatures reach into the 90's F that the roots of plants stop taking up water from the soil. The problem being they transpire to much too fast. And rather than lose the water shut down the stomata. True?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2571100417242238211.post-16761030415068084312014-06-26T19:33:46.766+01:002014-06-26T19:33:46.766+01:00Large dock i your garden - it wouldn't dare.Large dock i your garden - it wouldn't dare.Sue Garretthttps://www.blogger.com/profile/08164518448098182276noreply@blogger.comtag:blogger.com,1999:blog-2571100417242238211.post-14648211059719103132014-06-26T15:49:10.137+01:002014-06-26T15:49:10.137+01:00Reply to Sarah
I have known marestail pass under o...Reply to Sarah<br />I have known marestail pass under one foot foundations of walls, but am not sure it will go deeper, although I suspect it will. I have no doubt the roots do go as much as six foot down (deeper anyone?). Your observation that it might spread by relatively shallow side shoots sounds plausible.<br />It would be interesting to here of anyone else's experience of this weed.Roger Brook - No Dig Gardenerhttps://www.blogger.com/profile/16210160273591839142noreply@blogger.comtag:blogger.com,1999:blog-2571100417242238211.post-263260384033842682014-06-26T15:40:23.744+01:002014-06-26T15:40:23.744+01:00I think Dewfruit that roots do have behaviour as y...I think Dewfruit that roots do have behaviour as you suggest! For example if they meet compacted soil they undergo changes in their character.<br />I am glad you have taken my description 'probing' further to suggest how roots might penetrate into the soil. Apparently if the root tip is smaller than the compacted space it cannot go further- although in the long term wetting and drying Roger Brook - No Dig Gardenerhttps://www.blogger.com/profile/16210160273591839142noreply@blogger.comtag:blogger.com,1999:blog-2571100417242238211.post-43235298724922081462014-06-26T15:25:08.417+01:002014-06-26T15:25:08.417+01:00You always have an interesting angle on these thin...You always have an interesting angle on these things Alain with you own very challenging siteRoger Brook - No Dig Gardenerhttps://www.blogger.com/profile/16210160273591839142noreply@blogger.comtag:blogger.com,1999:blog-2571100417242238211.post-72366137900291250712014-06-26T15:21:52.084+01:002014-06-26T15:21:52.084+01:00Thanks for the question Sue. It opens a number of ...Thanks for the question Sue. It opens a number of interesting points! Foliar feeds are not necessary if a plant is well grown and has soluble nutrient at the roots. However sometimes nutrients are locked up in the soil, often due to extreme acidity or alkalinity, but other factors such as soil temperature can be involved. Nutrients in the form of chelates/sequestrenes for example can be quickly Roger Brook - No Dig Gardenerhttps://www.blogger.com/profile/16210160273591839142noreply@blogger.comtag:blogger.com,1999:blog-2571100417242238211.post-52750200152128398392014-06-26T09:43:51.153+01:002014-06-26T09:43:51.153+01:00I'm another weed watcher. I was interested tha...I'm another weed watcher. I was interested that my neighbour's horsetail/marestail was restricted by a retaining wall which was about 4' high, presumably with some foundations so perhaps a 6' barrier in all. On the top of the terrace it's rampant, but no sign of it below the terrace. Considering it's roots are supposed to go to Australia, why hadn't it managed to SarahStuhttps://www.blogger.com/profile/08799371703899376033noreply@blogger.comtag:blogger.com,1999:blog-2571100417242238211.post-65826614558147108272014-06-26T09:24:15.723+01:002014-06-26T09:24:15.723+01:00Didn't your editor ever try to remove a dock?
...Didn't your editor ever try to remove a dock?<br /><br />What about foliar feeds? Are they as effective as those directed to the roots?Sue Garretthttps://www.blogger.com/profile/08164518448098182276noreply@blogger.comtag:blogger.com,1999:blog-2571100417242238211.post-51349071302960247572014-06-26T01:27:59.958+01:002014-06-26T01:27:59.958+01:00Very interesting. Here I have to have raised bed b...Very interesting. Here I have to have raised bed because the bed rock is very close to the surface and in winter many perennials would drown is they were not raised. In fact in spots where the bedrock is only a few inches from the surface, almost only grasses grow. There are trees in these spots but they are all aligned. We have realized that they are aligned because they can only survive when Alainhttp://rochefleuriegarden.blogspot.comnoreply@blogger.comtag:blogger.com,1999:blog-2571100417242238211.post-17519953425458322282014-06-25T20:47:12.649+01:002014-06-25T20:47:12.649+01:00Very interesting, I've never read so much abou...Very interesting, I've never read so much about roots. Many times weeding the garden I look at the weeds' roots trying to 'know' them or understand their nature and behaviour (if roots could have behaviour). I noticed many interesting facts, for example, that roots of couch grass have a spike-like ending for easier penetration of the soil, I once saw that the root went through a Dewberry / Amanitahttps://www.blogger.com/profile/15414491661460075503noreply@blogger.com