RT Journal Article SR Electronic T1 Using Ammonium Sulfate Fertilizer as an Organic Mulch Fire Retardant JF Arboriculture & Urban Forestry (AUF) JO JOA FD International Society of Arboriculture SP 279 OP 280 DO 10.48044/jauf.1996.042 VO 22 IS 6 A1 Hickman, Gary W. A1 Perry, Ed YR 1996 UL http://auf.isa-arbor.com/content/22/6/279.abstract AB