from The Century Dictionary.
- noun A powder made of ground rape-seed, used for manure.
Sorry, no etymologies found.
Hops are especially benefited by bulky nitrogenous manures -- such as shoddy, horn-meal, hide-scraps, hoofs, rape-dust, &c.; and it is only when quick-acting manures are applied along with such slow-acting manures that they will exercise their full influence.
They have all been employed with success, but the most accurate observations have been made with rape-dust, which has been longer and more extensively used than any of the others.
Myremill, Ayrshire, and which has since been adopted in some other places, differs from liquid manuring in its _strict_ sense, for not only are the drainings of the manure-heap employed, but the whole solid excrements are mixed with water in a tank, and rape-dust and other substances occasionally added, and distributed through the pipes.