| |
| Publication Type:
| Report |
|---|
| Author(s): | Kussow, Wayne R. |
|---|
| Title: | Effects of Nitrogen Sources and Rates on Bentgrass |
|---|
| Source: | Wisconsin Turf Research: Results of 1989 Studies. Vol. 7, 1989, p. 9-12. |
|---|
| Publishing Information: | Madison: University of Wisconsin, in cooperation with the Wisconsin Turfgrass Association. |
|---|
| Keywords: | TIC Keywords: Agrostis stolonifera; Organic fertilizers; Nitrogen fertilizers; Poa annua; Bent versus Poa; Fertilization rates; Quality evaluation; Color evaluation; Fertilizer analysis; Phosphorus; Earthworms; Encroachment
|
|---|
| Abstract/Contents: | Study began in 1987 on Penncross creeping bentgrass established the previous fall at Maple Bluff Country Club, to determine if buildup of soil phosphate from long-term use of Milorganite favors invasion of bentgrass by Poa annua . Also determined if N source and rate influence growth and quality of bentgrass. Fertilizer treatment consisted of bi-weekly applications of fine Milorganite and urea, monthly applications of regular Milorganite, and bi-monthly applications of IBDU. Each N source is applied at annual rates of 2.4, 4.8, and 7.2 lbN/1000ft2. Results are provided in tables. Poa annua populations averaged 74% higher in Milorganite plots than in urea or IBDU plots. This increase was not significantly related to soil test phosphorus, but was tentatively attributed to increases in earthworm activity in Milorganite plots. 3 major conclusions from color ratings were: there are notable differences in the amounts of each N source required to achieve a given level of turfgrass color development, bentgrass color development is dependent on season (weather) as well as N source and rate, and the level of Bentgrass color achieved with Milorganite progressively increases with the numbers of successive years of application when N application rates were standard according to the mean annual color of bentgrass. Differences in effect of different N sources on long-term measure of verdure, tiller numbers and weights, rooting densities, and thatch were not significant. Therefore, choice on N sources may simply depend on economic considerations and preferred method of application. |
|---|
| Language: | English |
|---|
| References: | 0 |
|---|
| Note: | Tables |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Kussow, W. R. 1989. Effects of Nitrogen Sources and Rates on Bentgrass. Wis. Turfgrass Res. Rep. 7:p. 9-12. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=17999 |
| If there are problems with this record, send us feedback about record 17999. |
| Choices for finding the above item: |
|---|
| 
MSU catalog number: SB 433 .W57 |
| Find from within TIC:
Digitally in TIC by record number. |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |
