Advice on this mix please

[thizzness]

Howdy everyone
I'm planning a guerilla outdoor grow, and I'd like to keep costs low, so I'm mixing my own soil and might as well go organic since I can get good compost for free.

Here's my tentative mix:
50 gal peat
30 gal perlite
20 gal cattle manure compost
12 cups dolomite lime powder
6 cups kelp meal
33 cups mexican bat guano
50 cups jamaican bat guano

Sound good? I want to mix something up that doesn't need additional fertilizing when watering (no teas or liquid nutes), but I don't mind using dry nutes. Should add any more dry nutes to this mix or does it sound good to go?

 

[Savoir-faire]

Your substrate mix looks pretty solid I think. Composted manure is a good choice. I'm not sure guano is what you want if you want to do a straight water OD. It's not gunna heart, but may burn out faster than youd like. Bone meal/char? Maybe the guano's will be enough N to last you till late summer? I would maybe add some rock stuffs. (green sand, rock phos, azomite.. granite if you can find it etc.)

Looks like a decent amount of soil.. Are you "Growing Big Trees"? (check that thread out in the Tom Hill Forums - He uses an organic mix that seems cheap, maybe cheaper than the one above) Or are you growing in small pots?

Otheres will have more solid advice and will probably have some suggestions about incorporating native soil.

 

[thizzness]

Your substrate mix looks pretty solid I think. Composted manure is a good choice. I'm not sure guano is what you want if you want to do a straight water OD. It's not gunna heart, but may burn out faster than youd like. Bone meal/char? Maybe the guano's will be enough N to last you till late summer? I would maybe add some rock stuffs. (green sand, rock phos, azomite.. granite if you can find it etc.)

Looks like a decent amount of soil.. Are you "Growing Big Trees"? (check that thread out in the Tom Hill Forums - He uses an organic mix that seems cheap, maybe cheaper than the one above) Or are you growing in small pots?

Otheres will have more solid advice and will probably have some suggestions about incorporating native soil.

Thanks for the quick advice.
I'm growing in containers (20x5gal) and can't use bone/blood meal unless I want my roots dug up by critters. As for the nutes lasting, I'm gonna be growing mostly autoflowers, so they'll only be in the soil for a couple months anyway.

 

[mad librettist]

FYI, perlite is BRIGHT WHITE and stands out in a natural setting. I would go with rice hulls or some other drainage amendment that wont hang around for years.

 

[thizzness]

I think I've got this figured out, but I'm thinking of switching the mexican bat guano for peruvian seabird guano.

the mexican bat is 10-2-1 and the seabird guano is 10-10-2

If I combine the seabird guano with the jamaican bat guano (1-10-.2), will that leave my mixture with too much phosphorous?