Nitrogen sources with different properties and release characteristics are used to meet a variety of fertility management needs in turfgrass culture. Our objective was to determine the response of turfgrass to various urea-formaldehyde reaction products; two particle sizes of oxamide; experimental sulfur-coated ureas (SCU); products containing combinations of N sources; and an experimental composted sewage sludge. Nitrogen sources included for comparative purposes were isobutylidene diurea (IBDU); commercial SCU products; soluble sources; and Milorganite. In this 2. 5-yr study, 25 N source treatments were evaluated on 'Merion' Kentucky bluegrass (Poa pratensis L. ) using 196 kg N ha** minus **1 yr** minus **1, split into two equal applications. All N sources except the sludge compost were effective for turfgrass fertilization. Selection of an N source or combination of sources for turf fertilization should be dependent on quickness and duration of response desired, rate and frequency of applications, and various economic factors.
|Original language||English (US)|
|Number of pages||6|
|Journal||Soil Science Society of America Journal|
|State||Published - Jan 1 1987|
All Science Journal Classification (ASJC) codes
- Soil Science