Help on soil mix

I need to make a soil mix with what I have. I have been researching this but the amounts of amendments seem to be completely different on which recipe to use.
Can someone help me figure out the amounts for 4 cuft of mix? I think I need ewc or guano and lime. I prefer just watering but can do teas if needed.
Ingredients I have:
Peat moss
compost
perlite
kelp meal
crab shell
alfalfa
azomite
gypsum
Dr Earth tomato fert

Precaution said:

I need to make a soil mix with what I have. I have been researching this but the amounts of amendments seem to be completely different on which recipe to use.
Can someone help me figure out the amounts for 4 cuft of mix? I think I need ewc or guano and lime. I prefer just watering but can do teas if needed.
Ingredients I have:
Peat moss
compost
perlite
kelp meal
crab shell
alfalfa
azomite
gypsum
Dr Earth tomato fert

Click to expand...

Go on the medium/lights side. You can always add a top dress of more stuff later. Probably a little less than a cup per ingredient. Heavier on the kelp and gypsum. A little of a lot is better than a lot of a little.

I also suggest looking into SIP's. Sub irrigation with em-1 is an easy water only method I have found.

Use peat, perlite and compost to make your Base. About 1 and 1/3 cubic feet of each to get 4 cubic feet total. EWC are great, if you get some count it like compost. Some people like a little more perlite or a little less compost, so you don't have to be super exact.

For nutrients use 1/4 cup of alfalfa per cubic foot of base. And about 1/2 cup of crab shell and kelp per cubic foot of base. I agree, it's best to go kinda light on amendments in the soil. You can always top dress or use teas or repot into bigger pots if your soil is a little bit weak. But your plants will struggle and your soil will be kinda whack if you use too much.

For minerals use half cup of azomite and half cup of gypsum per cubic foot of base. Some people use up to a cup of each, but don't go too crazy. If you get some lime start with 1/4 or 1/2 cup per cubic foot. Some people feel like lime will drive your pH up too high and they don't like to use it. Others say your peat will turn acidic as it breaks down and you need the lime to counter this. I split the difference and use about 1/2 cup per cubic foot.

I would save the Dr Earth tomato fertilizer to top dress with, once your plants are bigger and established in their pots.

I like to use alfalfa and kelp tea through veg and first half of flower. Then kelp tea(sometimes with fish hydro or guano) during the last half of flower. It's pretty easy, but not mandatory if you don't want to mess with it.

You don’t need to be deadly accurate with amounts; diversity is more important than quantities. You want to add lots of things in small amounts. Recipes differ because you can tailor your mix to what you have access to. That being said youraveragehorticulturist is dead on. 1/3 each of compost, peat, and aeration for the base; 1/2 cup for each Cu ft of your amendments. More aeration may be needed if compost is heavy. I would also add in a fertilizer input or two in same amounts or maybe slightly more.
EWC is big yes; the fresher and more nutritious the better. Dolomite lime is also good to add; consider also crushed oyster shell which will help buffer ph and provide macros like calcium. Vermiculite is an often over looked soil conditioner; helps reduce compaction and retains moisture. Consider adding in a slow release fertilizer like cow or chicken manure instead of expensive and overhyped guano. Spikes are another way to boost slow release npk; I use two for each plant. Just push them initial the soil just before flipping to bloom phase; they feed for 8 weeks.
Do not have to add everything all at once. You can stagger additional amendments as you aquire them. Your mix will get slightly better after each recycle. Be sure to let your mix set for 30 days after amending heavily for everything to begin decomposing and to normalize ph.

These responses are exactly what I needed, Thanks to you all.