Compost application to replace sphagnum peat and to suppress pythium root rot in turf

Pittaway, P. (2014) Compost application to replace sphagnum peat and to suppress pythium root rot in turf. In: 1st International Symposium on Organic Matter Management and Compost Use in Horticulture (ISHS 2014), 2014, Adelaide, Australia.

Abstract

In the Municipality of Doha in Qatar, the application of sphagnum peat and animal manure compost at rates of 200 m3/ha/yr and 150 t/ha/yr are specified for turf production in sand. Application of the selective fungicide Ridomil is also specified to control Pythium root rot. In this trial, a cured, agronomically defined compost was applied as the sole soil conditioner, at a rate calculated to replace all fertilizer phosphorus required during the establishment period for growing Bermuda grass. The rate of application of fertilizer potassium and nitrogen was also adjusted, to improve soil health.
At half the volume, the water and nutrient-holding properties conferred to the soil by the cured compost were equivalent to the full 200 m3/ha application of light peat. In combination with the adjusted fertilizer regime, the cured compost also reduced the severity of Pythium root rot by 50%. The results of this trial prove that the soil conditioning properties of compost can be objectively quantified, enabling the calculation of agronomically appropriate application rates. However, if the fertilizer contribution of the compost is not accounted for in the nutrient management schedule, the desired outcome of reducing disease severity may not be realised.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: Published Version restricted in accordance with publisher copyright policy. Paper presented at: 1st International Symposium on Organic Matter Management and Compost Use in Horticulture (ISHS 2014), Adelaide, 4-7 Apr 2011
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - No Department
Date Deposited: 02 Sep 2014 03:06
Last Modified: 05 Jul 2017 04:55
Uncontrolled Keywords: bermuda grass; compost maturity; organic amendments; nitrogen; soil health
Fields of Research : 07 Agricultural and Veterinary Sciences > 0706 Horticultural Production > 070601 Horticultural Crop Growth and Development
05 Environmental Sciences > 0503 Soil Sciences > 050303 Soil Biology
07 Agricultural and Veterinary Sciences > 0799 Other Agricultural and Veterinary Sciences > 079902 Fertilisers and Agrochemicals (incl. Application)
Socio-Economic Objective: D Environment > 96 Environment > 9614 Soils > 961407 Urban and Industrial Soils
URI: http://eprints.usq.edu.au/id/eprint/25826

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