Bo|den|ver|bes|se|rung, die (Landw.): Bodenmelioration.
Bo|den|me|li|o|ra|ti|on, die (Landw.): Verbesserung des Erdbodens durch Düngung, Ent- od. Bewässerung usw.
© 2000 Dudenverlag
"LAND IMPROVEMENT: an alteration in the qualities of land which improves its potential for land use (of. major land improvement, minor land improvement)."http://www.fao.org/docrep/X5310E/x5310e0b.htm
"soil amelioration: The improvement of poor soils, usually using bacteria or fungi." http://www.fao.org/docrep/003/X3910E/X3910E22.htm
Reshaping, liming, fertilizing, and revegetating of soils to improve the watershed condition and other renewable resources.
Adding lime and/or fertilizer to low productive soils in order to increase the production of market goods, plant health, and quality as forage. " http://fwie.fw.vt.edu/rhgiles/appendices/glos...
bottom: ... 3 the part of the body on which a person sits; the buttocks. 4 the base on which something stands or rests; the foundation. 5 (the bottom) the basic cause or origin • Let's to get to the bottom of the problem. 6 the ground (or bed noun 4) underneath a sea, river or lake. 7 the part of a ship which is under the water. 8 the seat of a chair. ... http://www.chambersharrap.co.uk/chambers/feat...