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Hudo

Baked
User ID
1876
this is it copied and paste from im a cunt mag lol any input from tge soil gurus would be good,

Roo_

New member​

Goal is to make a cheap organic fertiliser / soil enhancer to amend native soils before planting.

I noticed a lot of gardeners overseas are using gaia green or down to earth 444 as a dry fertiliser.

So trying to use cheap readily available organic fertilisers to recreate this 4% npk mix..

Ingredients
15kg seamangus $24 NPK 4-1-1.5
15kg blood and bone $35 NPK 8-1-1.5
2.5kg phosphorus (from bat guano) $10 NPK 0-12-0
2.5kg potassium potash $22 NPK 0-0-41
or
25kg Eco Prime PhoSpot $45 NPK 0-9.8-6.1

Recipe
Big Green Shed 1kg 444 fertiliser (NPK listed for amounts is per 1000g)
250g seamangus - 40c - NPK 1-0.25-0.4
380g blood and bone - 90c - NPK 3-0.4-0.6
280g phosphorus - $1.10 - NPK 0-3.35-0
70g potassium - 60c - NPK 0-0-3
Add 20g of compost to make it 1000g NPK 444 total cost $3

A cheaper alternative to the phosphorus and potassium found at bunnings could be eco-prime phospot NPK 0-9.8-6.1 25kg $45, still using some potash from bunnings this would bring total to about $2.10 per kg of 444.

Suggested amounts to use 444 when mixing into a new container of soil
down to earth 444 - 300g per 50l
gaia green 444 - 560ml per 50l

Next amendment would be more calcium.. Following some recommendations online I found suggestions for 50% dolamite 50% gypsum 300ml per 50 litres of soil.

Next would be a flowering amendment with an NPK around 2-8-4

What are you favourite organic fertilisers and soil amendments available in Australia?

Any of these ingredients here you would avoid?
 

Roo

Vegetating
Community Member
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15818
My only comments would be if you are rural or in a full bush setting I would be careful of blood and bone. Every critter within 10km will be digging your plot up looking for goodies. Seen this the hard way. Suburbia shouldn’t matter much.

Dolomite and lime both take a long time to break down and become available. All good if you reammend your soil or plan on using a patch for a long period of time. Gypsum is pretty well available straight up and the sulphur in gypsum never goes astray.
 

Goonie Goat

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My only comments would be if you are rural or in a full bush setting I would be careful of blood and bone. Every critter within 10km will be digging your plot up looking for goodies. Seen this the hard way. Suburbia shouldn’t matter much.

Dolomite and lime both take a long time to break down and become available. All good if you reammend your soil or plan on using a patch for a long period of time. Gypsum is pretty well available straight up and the sulphur in gypsum never goes astray.
Yep I would ditch the blood and bone.
 
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Hudo

Baked
User ID
1876
My only comments would be if you are rural or in a full bush setting I would be careful of blood and bone. Every critter within 10km will be digging your plot up looking for goodies. Seen this the hard way. Suburbia shouldn’t matter much.
Good point im sububia but have a 7 month old cattle dog that gets into everything, i watch that mr cannucks on you tube and like the look of his style, but only for outdoor
 
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