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| over feeding? http://weetrees.co.uk/phpBB3/viewtopic.php?f=5&t=18592 |
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| Author: | oakrod [ 02 Jun 2019, 15:08 ] |
| Post subject: | over feeding? |
what are everyones views on the risk of over feeding your trees? is it possible ? has anyone done this and payed the price? what are the results of over feeding? i would assume some trees are greedy for food and others not. which trees like lots of food? which ones dont? |
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| Author: | Sizzla [ 02 Jun 2019, 18:00 ] |
| Post subject: | Re: over feeding? |
I'd have thought any excess nutrients would run out the bottom of the pot unless we are talking accidental overdose quantities. And then be flushed out during the next watering Dose frequency might be worse than quantity, consider feeding every day, the nutrients build up to toxic levels without daily watering washing any excess away? Overfeeding has an easy symptom to spot, yellowing and curling of leaves shows nutrient burn and a flush with water is usually enough to stop it |
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| Author: | john blanchard [ 02 Jun 2019, 19:09 ] |
| Post subject: | Re: over feeding? |
If you follow the fertiliser dose-dilution prescribed it should be virtually impossible to overfeed strongly growing plants. I've hammered feed to my trees when the weather conditions were great, such as last year, and they enjoyed it. I think it's where a water retentive substrate holds fertiliser chemicals for too long, that reverse osmosis, root burn will ruin a plant health. |
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| Author: | Gary Jones [ 02 Jun 2019, 20:02 ] |
| Post subject: | Re: over feeding? |
Pretty much as John says. Chemicals are more dangerous than organic fertilisers but again for a healthy tree and with common sense it's unlikely. The biggest issues is wasting stuff you've paid for as it gets washed away. Remember that fertiliser is closer to vitamin pills than food (leaves produce food) so if you fertilise with that in mind you won't over do it. If a tree is growing strongly then it may need supplemental nutrients through fertilisers to maintain that growth. Any time a tree is not growing strongly it doesn't need fertilisers (winter, disease, new collection, major repot or other operation). I've always thought the biggest problem with fertiliser is knowing how effective it is. Unless you do a controlled experiment and get results like a miracle grow advert it's hard to tell. |
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| Author: | paulpash [ 02 Jun 2019, 22:05 ] |
| Post subject: | Re: over feeding? |
oakrod wrote: what are everyones views on the risk of over feeding your trees? is it possible ? has anyone done this and payed the price? what are the results of over feeding? i would assume some trees are greedy for food and others not. which trees like lots of food? which ones dont? what are everyones views on the risk of over feeding your trees? is it possible ? Yes it's possible but you'd have to really go overboard on the concentration. Using inorganic substrates I'd say it's pretty difficult indeed. has anyone done this and payed the price? what are the results of over feeding? No I have never done this. Results are reverse osmosis - so basically the tree dehydrates as the salt concentration in the soil is greater than that in the roots therefore water in the roots flows backwards [b] i would assume some trees are greedy for food and others not. which trees like lots of food? which ones dont? [b]Most fruit bearing trees like a lot of food like crabapples, quince etc - junipers not so much. |
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| Author: | bluesky [ 03 Jun 2019, 00:57 ] |
| Post subject: | Re: over feeding? |
oakrod wrote: is it possible ? Yes. As well as time of year, it also depends on tree & pot size. I nearly lost two mames under development like this.oakrod wrote: what are the results of over feeding? Yellow, drying leaves throughout tree starting with older leaves.oakrod wrote: which trees like lots of food? From experience, ligustrum can take a lot, and crabapple. Trident maple seems to be okoakrod wrote: which ones don't. sageretia theezans, carmona. Probably lots more.
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| Author: | john blanchard [ 03 Jun 2019, 13:02 ] |
| Post subject: | Re: over feeding? |
If a tree thrives naturally in poor soil then it will most probably struggle in good soil with a lot of fertiliser. So any that naturally grow in the wild in dry arid conditions, I'd be careful with when it comes to fertiliser and water. |
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| Author: | darreng [ 03 Jun 2019, 13:10 ] |
| Post subject: | Re: over feeding? |
Curious to know what you're thinking Rod? I'm guessing you're going somewhere with this train of thought? |
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| Author: | Loufada [ 03 Jun 2019, 14:03 ] |
| Post subject: | Re: over feeding? |
Excellent question! It's always at the back f our minds, isn't it. The only one time I've ever seen reverse osmosis was when a guy poured dry chemical fertiliser (undiluted) at the bottom of a full grow tree. The tree dried out. I have no idea why he had done that - I was just a kid at the time but he certainly meant good with no idea what he was doing. All I remember is the white substance and then the dead tree. Otherwise, I used all sorts of fertilizers and i am pretty sure I did plenty of mistakes in my early years. I have not witnessed any damage. |
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| Author: | John M [ 06 Jun 2019, 20:21 ] |
| Post subject: | Re: over feeding? |
Walter Pall has a concept of 'aggressive feeding' which he uses to encourage conifers to grow quickly. When he does it, it works, but he never uses anything at a concentration likely to induce the reverse osmosis Paul writes about above. J. |
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