| Two studies were conducted to determine fertilization and irrigation programs for turfgrass on home lawn. The objective of the first study was to determine the effect of nitrogen and phosphorus fertilizer applications on Kentucky bluegrass sod planted on a high clay, low P subsoil representative of newly constructed residential developments. P rate treatments did not affect turfgrass color and quality from 2004 through 2006 even though the soil P test results would have recommended annual P applications of 98 kg P2O5 ha-1. For turfgrass established from sod grown on a soil with a sufficient soil P level, our research concludes that even when transplanting the sod to a low P soil, additional P applications are unnecessary. The objective of the second study was to determine the effect of three irrigation program and nutrient for two turfgrass species and a common lawn mixture. If water resource is limited, and turfgrass quality for low maintenance from July to September are not important, precipitation only treatment would be accepted under the weather condition of the research area. If maintaining turfgrass quality in summer months are important for the turfgrass manager, then either the every other day or the weekly irrigation treatment would be acceptable. |
