The Environmentally Sensitive Areas (South Wessex Downs) Designation Order 1993

2.  As regards any permanent grassland which is the subject of an agreement–

(1) the farmer shall maintain permanent grassland and shall not plough, level or reseed;

(2) the farmer shall wilt and turn any grass cut for silage before removal and shall graze the aftermath;

(3) the farmer shall not install any new land drainage system and shall not modify any existing land drainage system so as to bring about improved drainage;

(4) the farmer shall not use fungicides or insecticides;

(5) the farmer shall not apply herbicides except to control nettles, spear thistle, creeping or field thistle, curled dock, broadleaved dock or ragwort or to carry out stump treatment of cleared scrub. Herbicides used for these purposes shall be applied by means of a weed wiper or by spot treatment;

(6) the farmer shall not apply lime, slag or any other substance designed to reduce the acidity of the soil;

(7) the farmer shall not increase existing application rates of inorganic fertiliser and shall not in any event apply more than 90 kilogrammes of nitrogen, 40 kilogrammes of phosphate and 40 kilogrammes of potash per hectare per year. He shall not increase existing application rates of organic fertiliser and shall not in any event apply more than 30 tonnes per hectare in any year.