The Water Resources (Control of Agricultural Pollution) (Wales) Regulations 2021

Spreading organic manure — nitrogen limits per hectare

5.—(1) Subject to paragraph (2), the occupier of a holding must ensure that, in any 12 month period, the total amount of nitrogen in organic manure spread on any given hectare on the holding does not exceed 250 kg.

(2) The occupier of a holding must ensure that the total amount of nitrogen in organic manure exclusively in the form of certified compost applied to any given hectare on the holding does not exceed—

(a) 1000 kg in any four year period if it is applied as mulch to orchard land, or

(b) 500 kg in any two year period if it is applied to any other land.

(3) For the purposes of paragraphs (1) and (2), the total amount of nitrogen in organic manure must be calculated by reference to the methods described in regulation 9 for establishing nitrogen content.

(4) In this regulation—

(a) “orchard land” means land on which any fruit listed in Schedule 2 is grown;

(b) “certified compost” means green compost or green/food compost in relation to which the supplier confirms in writing that it meets the standards set out in the publication PAS 100:2011 on composted materials dated January 2011 and contains no livestock manure;

(c) the occupier must retain written confirmation that the organic manure complies with sub-paragraph (b).