The key additives in Organic Choice soil: chicken manure and yucca plant extract, a wetting agent.

FORBES: Magazine Article

Vibrating screens sift out organic particles which are then sold as manure for land in agriculture.

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Organic methods, which rely on crop rotation, manure and compost in place of fertiliser, are far less intensive.

ECONOMIST: Ethical food

The manure and non patable parts are used for rainworm pods, producing humus appreciated as the best organic fertilizer and worms, containing all essential amino acids for livestock and aquaculture.

UNESCO: Background