Abstract: The nitrogen release characteristic ofmacromolecule polymer coated urea ( PCU) by laboratory method of water dissolve and the effects of app lied PCU on tall fescue turf as basal app lication in spring was studied. The results showed that the rate of PCU nitrogen release by laboratorymethod ofwater dissolve is faster than the rate in the turf field because of their different circumstance temperature affect. Applying PCU once in early sp ring could meet nitrogen need of tall fescue growth in sp ring season. Compared with urea and turf special fertilizer, no significant difference was observed in turf quality. So, app lied PCU p lay an important role in reducing turf maintenance strength through keep ing even growth of turfgrass and less clippings production.

Key words: tall fescue, coated urea, p reliminary solubility, differential solubility, turf quality