Effects of 5-aminolevulinic acid and a nitrogen-trace elements mixed fertilizer on the growth of creeping bentgrass (Agrostis palustris Huds.)

Abstract

The combination effects of 5-aminolevulinic acid (ALA) and the nitrogen fertilizer containing Mg, Fe and other trace elements on the growth of creeping bentgrass (Agrostis palustris Huds. c.v. Penn. A-1, A-2, mix) were studied. The results demonstrated that ALA and the fertilizer showed synergistic and promotive effects on the dry weight and the turf color of creeping bentgrass in a greenhouse during winter. Additionally, there is a possibility that the growth and the turf color of creeping bentgrass were improved by the application of the fertilizer containing ALA during summer. These effects are interaction with ALA and the fertilizer. It was demonstrated that a promotive growth effect of ALA for creeping bentgrass is affected by a plant nutritional conditions.