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The compost test is an extensive analysis of compost quality. The differences in quality among compost can be drastic depending on starting material, production methods, and other factors.

Regular price $190.00
Regular price Sale price $190.00
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Report includes:

  1. Graphs, data analysis, and personalized recommendations with organic or conventional amendments.
  2. A 15-minute phone consultation with one of our soil scientists.

More details:

  • Nitrogen: Assessing total nitrogen content, including Ammonium Nitrogen and Organic Nitrogen forms.
  • Phosphate and Potash: Essential for promoting root development, flowering, and fruiting.
  • Micronutrients: Boron, Calcium, Copper, Iron, Magnesium, Manganese, Sodium, Sulfur, and Zinc are crucial for enzyme activation and overall plant health.
  • Chloride: Evaluation to avoid toxicity.
  • Carbon-to-Nitrogen (C/N) Ratio: Indicates decomposition stage and nutrient availability.
  • Conductivity: Measures soluble salts, influencing soil salinity and nutrient uptake.
  • Moisture/Total Solids: Determines compost stability and application rates.
  • Organic Matter and Ash: Provide insights into compost quality and nutrient retention capacity.
  • pH Level: Affects nutrient availability and microbial activity within the compost.

Through meticulous analysis of these parameters, compost quality and suitability for agricultural use can be determined, enabling growers to make informed decisions regarding soil fertility management and crop production practices.

Sampling instructions

1. Using a clean bucket and a shovel, collect three samples of compost from different areas of the pile.

2. Break up any clods, remove debris, and thoroughly homogenize together.

3. Take out 2 cups of compost and place into plastic bag and label with a sample ID (i.e., Stevie's front yard), type of test, and order number (found in order confirmation email).

4. Purchase your test on our website and send sample to Alluvial Soil Lab, 201 E Center St, Ste 112 #3083, Anaheim, CA 92805 using any postal carrier of your choice.

Turnaround time is between 7 and 11 business days. Results will be sent via email.

**Always wear gloves, mask, or other necessary PPE while collecting samples from potentially contaminated compost.

Advanced details

Test includes:
Moisture, Total Nitrogen, Phosphorus, Potassium, Calcium, Magnesium, Zinc, Manganese, Iron, Copper, Boron, Aluminum, Sodium, and Sulfur.

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  • Wilson H.

    Verified Purchase ✓

    I recently started a garden at a community plot, and wanted to know what was in my soil, so I could make more targeted amendments. Jake walked me through how to do so, and after sending my samples in... (read more)

  • Noah M.

    Verified Purchase ✓

    As a professional in the field I very much appreciate the timely and detailed report, along with skilled follow up communications. I will certainly use Alluvial Soil Lab's services again.

  • Zakary S.

    Verified Purchase ✓

    Great support and detailed report. Helped advise what options we had to plant trees! Plants are doing incredible!(read more)

  • Peggy C.

    Verified Purchase ✓

    I recently moved to a property with a vineyard, and wanted to know what type of fertilizers to use and how much to apply. So I did a soil test. I was new to soil testing and with Jake's help and instructions, I was able to successfully collect… (read more)

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