Benefits of Worm Castings

20 Jul

Benefits of Worms and their castings have long been known, and here is one example from Thomas J. Barrett”s Harnessing The Earthworm.

In a full-column article entitled “Earthworms in Role of

Great Benefactors of the Human Race,” Mr. W. A. Anderson,

Editor of the South Pasadena Review, reported a number of

growth experiments by the author.* One of the experiments reported

on was this: We planted three boxes of lawn grass (poa

trivialis}. One box of good native soil as control; one box of

identical soil, but with earthworms added ; one box of pure earth worm

castings. After germination and sixty days’ growth, the

grass was harvested and the results carefully compared. All

boxes produced good crops of grass. The box of native soil, with

earthworms added, yielded 271 percent more than the control box

without worms. The box of earthworm castings yielded 463 percent

more than the control box without earthworms.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  


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