Perth manures neutral Ph (forum)

NyG1 starts with ...
I am trying to find a bagged manure in Perth metro with a reasonably neutral PH to assist with correcting the high PH soil I have in my garden. Everything, so far, that I have brought and tested is up around 8.0
I am treating an area with a combination of Sulphur and Iron Sulphate but the process takes a while so in the interim I want to trial Compost/manure/Iron Sulphate columns in dug out holes around plants.

Time: 17th February 2019 4:36pm

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jakfruit etiquette says...
Hi, did you check the analysis of the manure, I assume processed animal manure? If not the same will apply to manufactured fertilizer.
I'm thinking that added Ca and Mg,ie lime and dolomite would be the main thing pushing up the pH. If so maybe you could find something without Ca and Mg, or at least less of them.
For manure, natural, not ammended or balanced versions from a farm.
Have you considered the rate of application of manure? adding small ammounts of pH8 manure to a high pH soil isnt probably going to alter things much. Will spraying a liquid fert/ manure tea overcome the high soil pH ? ie the plants will get the nutrients direct, not via roots/soil.
The pH may be high, but have you seen any obvious deficiency ?




Time: 18th February 2019 7:42pm

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Original Post was last edited: 19th February 2019 8:40pm
About the Author jakfruit etiquette
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Bangkokii says...
peat, pinebark fines, coffee.

Time: 19th February 2019 2:29am

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NyG1 says...
jakfruit etiquette says...
Hi, did you check the analysis of the manure, I assume processed animal manure? If not the same will apply to manufactured fertilizer.
I'm thinking that added Ca and Mg,ie lime and dolomite would be the main thing pushing up the pH. If so maybe you could find something without Ca and Mg, or at least less of them.
For manure, natural, not ammended or balanced versions from a farm.

Hi Jak. Thanks for your reply. I think you are right on the money with the lime or dolomite thinking. I have read on line that in large commercial operations they add it to reduce the expected final lower than neutral ph.
Coincidently, yesterday I came up with the same thought in regards to looking for a more natural product from a smaller outlet. A local landscape supplier had a brand I had never heard of from a small operation south of Perth. I was able to talk to the owner who straight away could assure me his product was between ph 6.5 & 7 Perfect!
Today I started with my Manure/compost Iron Sulphate columns.

The pH may be high, but have you seen any obvious deficiency ?
The garden concerned has roses. The symptoms have been drooping flower heads, small misshapen leaves, small blooms and general lack of vigour. If my pics have attached OK then one is of the first flower on a plant from five months ago, the other is how they all look now.
Pictures - Click to enlarge

Picture: 1
Picture: 2

Time: 20th February 2019 12:13am

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NyG1 says...
Thanks Bangkokii
I had heard about peat and considered going down that path but figured it might be a bit more costly. The pinebark fines sounds interesting. I have only ever noticed the chunky stuff sold here as mulch. I will try and locate some as both suggestions may be a good option for maintaining the ph at an acceptable level if I can manage to lower it with the Sulphur application.
I'm chuffed you took the time to reply from Thailand.

Time: 20th February 2019 12:27am

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Bangkokii says...
Well here in Bangkok a large bag of imported peat from Europe costs the same as a large imported bag of New Zealand pine bark chips.

The chips add more structure to the soil and i noticed they get white from soilfungus fast.

But for Perth it's more about what's for sale locally i assume.

Time: 20th February 2019 6:27pm

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