1. As regards any pasture which is the subject of an agreement—
(1) the farmer shall identify land which is pasture and shall maintain it as such for the length of the agreement;
(2) the farmer shall not apply inorganic or organic fertiliser except for farmyard manure produced on his farm. He shall apply farmyard manure in a single application not exceeding 20 tonnes per hectare in any year and in any event shall not apply slurry or pig or poultry manure;
(3) the farmer shall not chain harrow, roll or otherwise cultivate;
(4) the farmer shall not cut or top areas of rushes when birds are nesting in the vicinity;
(5) the farmer shall not exceed a stocking level of 0.6 livestock units per hectare between 31st March and 1st July in any year;
(6) the farmer shall observe subparagraphs (5) to (8) inclusive of paragraph 2 of Schedule 1.