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Macro and Micro Nutrient Deficiencies on Tall Fescue Hort 327 Lab TA Neil Heckman December 1 2000 Adam Sandberg Introduction In our experiment different combinations and rates of Nitrogen Potassium and Phosphorus were applied to Festuca arundinaceae or tall fescue The goal was to determine which rate and combination would result in the highest rate of shoot growth Tall fescue is a cool season perennial It is used in areas with cold winters and mild to hot summers General uses of tall fescue include as pastureland in some of the southern states and also as lawns athletic fields and roadsides in certain areas It is a coarse bunch-type grass that can have rhizomes that spread slowly Tall fescue can handle soils that are wet but also has good drought tolerance Some of this drought tolerance can be attributed to the relatively deep root system it has Besides drought tolerance tall fescue tends to have a relatively good tolerance for heat and medium cold tolerance Shade is tolerated by tall fescue as well The ideal pH for tall fescue is from 55 to 65 but will survive under pHs that range from 47-85 Beard 1982-p594 Tall fescue has a medium cultural intensity Mowing height of two to three inches is relatively high compared to most turf grasses Collins 1999-p 76 The high mowing height allows for more photosyn thetic area than other commonly used turf-grasses Nitrogen is a mobile macronutrient that is mostly available in pHs of 6 to 8 Dole 1999-p 68 Beyond the given range it can be difficult or impossible for the plant to receive and utilize the nitrogen Water is also necessary in order for nitrogen to be used by the plant Nitrogen functions in leaf greenness ability of the plant to recover from stress
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