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Earthgreen Menefee Humate®

Earthgreen Menefee Humate®

Hundreds of millions of years ago the lush rainforests and tropical swamplands of Precambrian New Mexico produced plant matter that, through millions of years of composting and burial under layers of water and sand, metamorphosed into the coal-like material of the Menefee formation. Tectonic and volcanic activity brought it back to the surface and exposed the layer for mining.

Humates contain 50% humic acid in a carbon matrix to chelate minerals and nutrients making them more easily available to soil microorganisms and plants. Extensive tests at agricultural stations have shown marked crop improvement when Menefee Humate was applied. Use 6–10#/1000 sq ft or 250–400#/acre/year in several applications and incorporate into the soil surface for best results.

Item Discounted
8243A: (5#) $7.00
  MOFGA Approved
8243B: (50#) $39.00
  OMRI Certificate
8243C: pallet 40 bags (2000#) $1155.00
  OMRI Certificate
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Additional Information

Rock Powders and Soil Amendments

Thriving sustainable agriculture is built on the ground of a healthy soil. In fact, organic certification requires a soil management plan. Do a soil test to determine your soil’s needs before embarking on a program of soil improvement.

Rock powders and soil amendments used with a program of crop rotation, composting and cover cropping will enhance fertility, improve soil tilth, promote disease resistance, support beneficial soil microorganisms, and even help restore balance to the garden and the world around it. Application rates vary depending on soil type and results of soil tests. Used with organic fertilizers, rock powders and soil amendments will help address immediate fertility needs as well as long-term requirements of sustainable growth. Rock powders can be applied directly to soil but their nutrients will be more readily available to plants if incorporated into compost.

Organic Certification

Inoculants, soil amendments, fertilizers, livestock supplies and pesticides are labeled as:
OMRI: Organic Materials Review Institute. Most state certifying agencies, including MOFGA, accept OMRI approval.
MOFGA: Maine Organic Farmers & Gardeners Association. Reviewed by MOFGA and allowed for use on MOFGA-certified farms. Check with your certifier.
WSDA: The Washington State Department of Agriculture’s Organic Certifying division has approved these products for use in organic agriculture in Washington State. MOFGA has indicated that they will accept products on this list for their certification program. Check with your certifier.
Nat’l List: One-ingredient products on the NOP* List of Allowed Substances (subpart G of the Organic Foods Production Act, sections 205.601-606). Check with your certifier.
AYC: Products whose active ingredient is on the list of allowed substances, but which are not on the OMRI or WSDA list. Ask your certifier.
Not Allowed: A few of the products we list are not allowed for organic production but we think they have a place in sensible agriculture and can be used when certification is not an issue.

• Click here for our list of soil amendments, fertilizers, and disease and insect controls along with their certification status and manufacturers.