Feedstock and fertilizer
Verbio is committed to strong partnerships with regional agriculture, sourcing feedstock primarily within a 50- to 75-mile radius of each production plant. By working closely with local farmers and agricultural partners, we help strengthen rural economies and promote sustainable operations.
Following the production of renewable natural gas, we are left with a co-product known as humus which is similar in appearance to peat moss or compost. Humus is highly valued as a soil amendment to replace the agronomic value of the feedstock which was harvested.
On average, one cubic yard of humus is composed as follows:
- 750 pounds water
- 225 pounds organics (carbon compounds, primarily lignin)
- 10 pounds nitrogen
- 10 pounds phosphorous
- 4 pounds potassium
- 3 pounds magnesium
Samples of humus may be provided to interested parties upon request. Humus has no offensive odors, incredible water holding capacity due to high concentration of lignin, and can be land applied in solid form using a typical manure spreader.
In addition to humus, Verbio produces two sustainable liquid fertilizers under the Verbio CropCare line. These products provide essential nutrients such as nitrogen, sulfur, and potassium to support healthy crop growth, improve soil fertility, and reduce the need for synthetic fertilizers—helping local growers maintain productive and sustainable farming practices.
Find more information about our sustainable solutions for agriculture at our biorefinery location in Nevada, Iowa, here: www.verbio-agriculture.com
