9.—(1) Without prejudice to paragraph 10, organic manure shall not be applied to land where the application would result in the total nitrogen in kilograms contained in organic manure applied in each year to land on the farm exceeding the specified amount calculated in accordance with sub-paragraph (2).
(2) For the purposes of sub-paragraph (2), the specified amount is the sum of—
(a)the number of hectares of grassland on the farm multiplied by 250kg; and
(b)the number of hectares of agricultural land other than grassland on the farm multiplied by—
(i)210 kg in relation to a year ending on or before 1st June 2003,
(ii)170 kg in relation to other years.