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Juniper Workshop - Saturday March 9th (18 Feb 2019)

Join our exclusive Juniper workshop feature Leong Kwong.

Saturday 9th March, 2019 10am at the Bonsai South Nursery (114-116 The Boulevarde, Caringbah NSW 2229)
Call to reserve your space – call (02) 9531 4589

Hurry as space is limited! To reserve your spot call (02) 9531 4589 .

www.bonsaisouth.com.au/bonsai-workshop-juniper/

× Discussion forum for Soils and Potting Media.

Adding slow release to your mix.

Poll: How do you add slow release fertilizers.

I add it in my mix during repotting.
14 77.8%
I add it after repotting to the soil surface.
3 16.7%
I dont use it at all.
1 5.6%
Total number of voters: 18
Only registered users can participate to this poll
8 years 3 days ago #20586 by Peter Woosley
I was wondering if there is a correct way/incorrect way of adding slow release fertilizers to your mix.

I have been adding it to my mix before i start repotting and as such it gets mixed in with my ingredients and ends up getting distributed throughout the mix.
Is that the right way or the wrong way to do it? Do you/dont you use it at all?

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8 years 3 days ago #20595 by Shannon young
Pete good questions :) .
I have heard that slow release fertilizer if placed on top of your mix is not as effective as mixing it through.
The nitrogen oxidises is dispersed in the air rather than into your potting mix where it can be utilized buy the tree.

This is something I learned back in the nursery days and don't know if manufactures of slow release fertilizer have managed to remedy this issue these days.

.....BONSAI ON THE BRAIN.....

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8 years 3 days ago #20600 by Rod Lovett
Mate I always use it, I mix it in just before I repot. I have always been of the same opinion as Shan, that if it is on the surface you lose it. I feel now days with the mixes we are using , we defiantly need it as well as liquid fert.
cheers Rod..

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8 years 3 days ago #20602 by Anthony W
Hi Pete, I use it and tend to slightly bury it.

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8 years 3 days ago #20614 by Taffy
Me too - mix in just before re-potting. Nothing scientific, I just feel that when those little balls get wet and the fertilizer is leaching out then if they are on the top of the soil a lot of the fertilizer is going to evaporate away - especially in our climates.

I would think though that the claims of '3 month' or '6 month' etc fertilization would then be a bit high if it is mixed in and constantly moist.

I understand that this stuff was originally created in Sweden or another cold climate country and would last the stated time, but when used in our much warmer climate it only worked for about half as long. I guess it has been vastly improved since its inception, so if used the way suggested (sprinkled on top) it should last the stated time. Don't think it would though - much prefer to mix it in.

Regards,

Taffy

A seed is actually a tree packed ready for travel. (Bill Funk)

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8 years 3 days ago #20615 by Jarrod Swenser
If I am using it, it gets buried slightly, then often covered with dynamic lifter ;)

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8 years 3 days ago #20637 by adam k
i mix it in when repotting
i have been told that if it is placed on the surface
the sun can break it down too quick resulting
in a massive dump of fertiliser in one hit
which can result in over fertilising & root burn

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8 years 2 days ago #20651 by Chad
i use a chook poo and seaweed pelet that dosent burn so you can put
heaps in and it works great . then i put some on the soil in the new
year with some dolamite and thats all i need all year till sring , i
also use superthrive every 4 months or so

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