About: fertilizer runoff

Premodifier: fertilizer
Head noun: runoff

Same concepts
http://dbpedia.org/resource/Agricultural_wastewater_treatment

Broader concepts

label	provenance	confidence
source	isap:390515135	0.701752
nutrient	isap:105109282	0.581977
pollutant	isap:425034032	0.578861
chemical	isap:104866258	0.521307
pollution	isap:425055537	0.514491

Narrower concepts

label	provenance	confidence
nitrate	isap:274172628	0.200050