When to spread fertiliser
20.—(1) An occupier who intends to spread nitrogen fertiliser must first undertake a field inspection to consider the risk of nitrogen getting into surface water.
(2) No person may spread nitrogen fertiliser on that land if there is a significant risk of nitrogen getting into surface water, taking into account in particular—
(a)the slope of the land, particularly if the slope is more than 12°;
(b)any ground cover;
(c)the proximity to surface water;
(d)the weather conditions;
(e)the soil type; and
(f)the presence of land drains.
(3) No person may spread nitrogen fertiliser if the soil is waterlogged, flooded or snow covered, or has been frozen for more than 12 hours in the previous 24 hours.