[Arable soil set aside. New restrictive clauses in 1994 [typology, list of species authorized to be sown and list of herbicides to be used; in Belgium]]

arable soils belgique belgium crops cultivos desarrollo regional diversification fallow systems land diversion legal liability pesticide pesticides plaguicidas plante de culture politique de soutien regional development reglamentaciones regulations responsabilidad legal retrait des terres rotation culturale rotational cropping sistemas con barbecho sol arable suelos cultivables support measures