Kelp Fertilizers and Soil Amendments in Organic Gardening

From a channel Lumen includes in full: Alberta Urban Garden is run by a biologist who teaches organic urban gardening (soil, compost, seed saving, cold-climate growing) and tests garden myths with simple experiments.

A 8-minute video from Alberta Urban Garden Simple Organic and Sustainable's catalogue; the title names its topic.

Video by Alberta Urban Garden Simple Organic and Sustainable, played through YouTube's embedded player.