the total amount of nitrogen (organic and manufactured) permitted to be spread on specified crops must not exceed the maximum nitrogen limit (See guidance for specified individual crop limits)
wrth wasgaru nitrogen (organig ac artiffisial) ar gnwd penodol, peidiwch â gwasgaru mwy na’r terfyn nitrogen uchaf a ganiateir (gweler y canllaw ar gyfer terfynau cnydau penodol)