Assessment of compost for suppression of Fusarium Patch (Microdochium nivale) and Typhula Blight (Typhula ishikariensis) snow molds of turfgrass

被引:25
作者
Boulter, JI [1 ]
Boland, GJ [1 ]
Trevors, JT [1 ]
机构
[1] Univ Guelph, Dept Environm Biol, Guelph, ON N1G 2W1, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
Microdochium nivale; Typhula ishikariensis; Agrostis palustris; pink snow mold; gray snow mold; compost; creeping bentgrass; disease; organic amendments; soil; turf;
D O I
10.1016/S1049-9644(02)00060-9
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
Two composts were evaluated for suppression of Fusarium Patch (Microdochhium nivale) and Typhula Blight (Typhula ishikariensis) snow molds in field experiments, conducted in 1998-1999 in two distinct areas of turf management. One plot was on a creeping bentgrass green (mowing height 4 mm) and the second plot was a creeping bentgrass range (mowing height 25 mm). Fall applications of compost applied at either 48.7 or 97.4 kg/100 m(2) reduced snow mold severity to levels not significantly different (P < 0.05) from fungicide controls. In addition, a significant increase in green-up of turf (recovery from disease and/or winter dormancy) compared to fertilizer and fungicide controls (P < 0.05) was observed. The two composts showed no significant differences in their capacities to suppress disease. However, most plots that received a higher application rate of compost had significantly less disease for most ratings (P < 0.05) than those that received the lower application rate. At both turf management locations, there were significant increases in green-up in compost-treated plots (similar to 85%) compared to the fungicide plots (similar to 30%) and fertilizer treatments on a field range (P < 0.05). These differences in green-up among treatments diminished over a four-week-rating period, after which the controls approached or were not significantly different from the compost-treated plots (P < 0.05). There were no significant differences between composts at either experimental location on any rating date (P < 0.05). (C) 2002 Elsevier Science (USA). All rights reserved.
引用
收藏
页码:162 / 172
页数:11
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