BIOSTIMULANTS AND MYCORRHIZAS DO NOT INCREASE POA PRATENSIS ESTABLISHMENT ON A SAND-BASED ROOTZONE
Many products are available to athletic field managers designed to increase the rate of turfgrass establishment.In addition,the environmental concerns to minimize synthetic fertilizer sources have encouraged turfgrass managers to seek alternatives to synthetic fertilizers.The objectives were to determine the establishment rate on a sand-based rootzone of Poa pratensis L.receiving commercial products that include synthetic or organic/slow-release fertilizers along with mycorrhizas and biostimulants as compared to a fertilizer control and to determine the effects of individual components from these protocols on P.pratensis establishment.Research was conducted in 2003 and 2004 near Mead,Nebraska USA to a newly-constructed 30.5 cm depth of 90:10 (v:v) USGA specification sand: Dakota reed-sedge peat rootzone.Establishment protocols were solicited from domestic commercial companies containing combinations of synthetic fertilizers,organic fertilizers,slow-release fertilizers,biostimulants,and vesicular arbuscular mycorrhizal fungi.Each protocol was conducted as recommended by manufacturer.A modified factorial arrangement was used to determine which of the components or combination from each protocol may reduce time to establishment of a P.pratensis three-seed blend.Turfgrass cover was increased by 28-33% in plots receiving fertilizer control as compared to organic and slow-release fertilizers at 30 day after seeding (DAS),60 DAS and 90 DAS.The inclusion of both mycorrhizas and biostimulants to the fertilizer control did increase P.pratensis cover at 30 DAS by 6%,but reduced cover by 6% at 60 DAS and 3% at 90 DAS.The synthetic fertilizer program provided rapid establishment of P.pratensis with little long-term benefit observed from mycorrhizas or biostimulants.
organic fertilizer slow-release fertilizer synthetic fertilizer vesicular mycorrhizal fungi
R.M. Goss R.E. Gaussoin
Dept. of Plant and Environmental Sciences,New Mexico State University,Las Cruces,NM,88003 USA Dept. of Agronomy and Horticulture,University of Nebraska,Lincoln,NE 68583 USA
国际会议
The 12th International Turfgrass Research Conference(第十二届国际草坪学术大会)
北京
英文
169-177
2013-07-14（万方平台首次上网日期，不代表论文的发表时间）