Tilth

The fine crumbly surface layer of soil needed for a seedbed before sowing seed

tilth

[n] - the state of aggregation of soil and its condition for supporting plant growth
Found on http://www.webdictionary.co.uk/definition.php?query=tilth

Tilth

The quality of a seedbed. The finer the tilth the better protected the seeds are and the better the soil/seed contact for moisture transfer.
Found on http://www.lethamshank.co.uk/glossary/glossary.php?letter=T

tilth

noun the state of aggregation of soil and its condition for supporting plant growth
Found on http://wordnetweb.princeton.edu/perl/webwn?s=tilth

Tilth

Where the soil surface well broken down to a fine crumbly consistency (usually by raking) and is ready for sowing seeds.
Found on http://www.seasonalgardening.co.uk/garden_glossary.html

tilth

agricultural work
Found on http://phrontistery.info/t.html
No exact match found