Homemade Soil Mix Results

ExoticKangaroo

ExoticKangaroo

Well-Known Member
Here are my results from mixing the following
8 cubic feet peat moss
4 cubic feet vermiculite
4cubuc feet perlite
8 cubic feet castings (wiggle worms)
2 pounds insect frass
8 cups seabird guano (down to earth)
12 cups earth dust base
20 cups earth dust boost
24 cups kelp(down to earth)
24 cups alfalfa(down to earth)
12 cups oyster shell(down to earth)
12 cups azomite
6 cups gypsum
6 cups mixed minerals

Maybe someone can find this useful im not sure. Figured I'd share it.

Let cook for 5 weeks before sampling.20201218_195559.jpg
 
MoroccanRoll

MoroccanRoll

Well-Known Member
The lab analysis doesn't tell you much but I'd question your lab. 45.7% organic matter? That leaves 54.3% inorganic. I'm counting 8.65 cubic feet of inorganic matter in your recipe. That's about 30%. Something ain't right.
 
ExoticKangaroo

ExoticKangaroo

Well-Known Member
MoroccanRoll said:
The lab analysis doesn't tell you much but I'd question your lab. 45.7% organic matter? That leaves 54.3% inorganic. I'm counting 8.65 cubic feet of inorganic matter in your recipe. That's about 30%. Something ain't right.
Click to expand...
Do you think the difference could come from uneven mixing? I only sent in one sample of about 2 cups. I tried taking some soil from here and there but there's bound to be human error.

The facility I used is the states university.
 
MoroccanRoll

MoroccanRoll

Well-Known Member
Of course, uneven mixing could affect the testing. Sample size could affect the testing. If it's a university co-op and the student that did your testing was awake studying (or partying) for the last 36 hours - could affect the testing.

Test for phosphorus, potassium and not nitrogen? Seems odd to me. Can't hurt to call, explain what you're trying to do (tell them you're growing vegetables if you have to) and ask questions.

Your mix looks reasonable. It will grow weed. Probably good weed. You should be able to grow start to finish without adding anything else. Just add water. Germinate some seeds and find out.
 
ExoticKangaroo

ExoticKangaroo

Well-Known Member
MoroccanRoll said:
Of course, uneven mixing could affect the testing. Sample size could affect the testing. If it's a university co-op and the student that did your testing was awake studying (or partying) for the last 36 hours - could affect the testing.

Test for phosphorus, potassium and not nitrogen? Seems odd to me. Can't hurt to call, explain what you're trying to do (tell them you're growing vegetables if you have to) and ask questions.

Your mix looks reasonable. It will grow weed. Probably good weed. You should be able to grow start to finish without adding anything else. Just add water. Germinate some seeds and find out.
Click to expand...
They know its for a "mixed vegetable" garden. They did test for nitrogen as well I just can't include that portion of the results without doxxing myself too much. Nitrogen recommendation was .3 of a lbs additional per 100 sq ft. And I only flower in this bed. Its already planted and doing well. I was mostly posting these results in case someone could gain something from it.
 
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