After 20 years, the organic content of my soil is high enough that a robin can always count on finding an earthworm.

Total organic content of the shale ranges from 0.5% to 1.5%.

- a technique of measuring organic content in soil samples.

On Earth, the term "soil" usually includes organic content.

They should be planted in moist soil that is high in organic content for best results.

Unlike the two previous species, this one prefers more organic content in its substratum.

It lives in stagnant, oxygen-deprived water, with a high organic content.

The do have a moderate ability to hold water, but with only a moderate organic content.

The gathering, cutting, bending and tying are part of the organic content.

Products in the first three categories may display the category descriptions and the percentage of organic content on the front.