Crop and Pasture Science Crop and Pasture Science Society
Plant sciences, sustainable farming systems and food quality

Use of garden organic compost in vegetable productionunder contrasting soil P status

K. Y. Chan A B E , C. Dorahy A C , T. Wells D , D. Fahey A B , N. Donovan C , F. Saleh C and I. Barchia C

A Centre for Recycled Organics in Agriculture, NSW Department of Primary Industries, PMB 8, NSW 2570, Australia.

B NSW Department of Primary Industries, Locked Bag 4, Richmond, NSW 2753, Australia.

C NSW Department of Primary Industries, PMB 8, Camden, NSW 2570, Australia.

D NSW Department of Primary Industries, Locked Bag 26, Gosford, NSW 2250, Australia.

E Corresponding author. Email:

Australian Journal of Agricultural Research 59(4) 374-382
Submitted: 3 July 2007  Accepted: 19 December 2007   Published: 8 April 2008


Little research has been carried out on the agronomic value of compost produced from garden organics for vegetable production. A field experiment was established in Camden, near Sydney, Australia, to (i) evaluate the effect of the compost on vegetable production and soil quality relative to conventional practice, (ii) compare vegetable production under high and low soil P status, and (iii) monitor the changes in soil P concentration under two compost treatments relative to conventional farmers’ practice. After three successive crops (broccoli, eggplant and cabbage), results indicate that compost (120 dry t/ha) and half-compost (60 dry t/ha supplemented by inorganic fertilisers) treatments can produce similar yield to the conventional practice of using a mixture of poultry manure and inorganic fertiliser. Furthermore, similar yields were achieved for three different crops grown under high and low P soil conditions, clearly demonstrating that the high extractable soil P concentrations currently found in the vegetable farms of Sydney are not necessary for maintaining productivity. The compost treatments also significantly increased soil organic carbon and soil quality including soil structural stability, exchangeable cations, and soil biological properties. Importantly, the compost treatment was effective in reducing the rate of accumulation of extractable soil P compared with the conventional vegetable farming practice. Our results highlight the potential for using compost produced from source separated garden organics in reversing the trend of soil degradation observed under current vegetable production, without sacrificing yield.

Additional keywords: carbon sequestration, recycled organics, poultry manure, microbial biomass, soil biological activities, phosphorus availability.


Anderson JPE (1982) Soil respiration. In ‘Methods of soil analysis. Part 2. Chemical and microbiological properties’. (Eds AL Page, RH Miller, DR Keeney) pp. 831–866. (The American Society of Agronomy: Madison, WI)

Bear FE Stephen JT Prince AL 1948 Variation in mineral composition of vegetables. Soil Science Society of America Proceedings 13 380 384

Burgess J (1993) Organic fertilizers – an introduction. Agfact AC.20, NSW Agriculture, NSW, Australia.

Chan KY Dorahy C Tyler S 2007 b Determining the agronomic value of composts produced from garden organics from metropolitan areas of New South Wales, Australia. Australian Journal of Experimental Agriculture 47 1377 1382

Chan KY Dorahy CG Tyler S Wells AT Milham P Barchia I 2007 a Phosphorus accumulation and other changes in soil properties as a consequence of vegetable production in the Sydney region, New South Wales, Australia. Australian Journal of Soil Research 45 139 146 doi:10.1071/SR06087

Chan SL Kennedy BM 1960 Sodium in Chinese vegetables. Journal of the American Dietetic Association 37 573 576

Cook JA , Keeling AA , Bloxham PF (1998) Effect of green waste compost on yield parameters in spring barley (Hordeum vulgare) v. Hart. In ‘International Symposium on Composting and Use of Composted Materials’. (Ed. RAK Szmidt). Acta Horticulturae 469, 283–286.

Dorahy CG , Chan KY , Gibson TS , Tyler S (2005) Identifying potential agricultural and horticultural markets for recycled organics in New South Wales. Final report prepared for the Department of Environment and Conservation NSW, Australia.

Evanylo GK (2002) Economic and environmental effects of compost use for sustainable vegetable production. SARE Reporting System: LS99-099: 2002 Final Report. Available at:

Evanylo GK , Sherony CA (2002) Agronomic and environmental effects of compost use for sustainable vegetable production. In ‘International Compost Science and Utilisation Conference’. 6–8 May, Columbus, OH. pp. 730–740.

Gillman GP Sumpter EA 1986 Modification to the compulsive exchange method for measuring exchange characteristics of soils. Australian Journal of Soil Research 24 61 66 doi:10.1071/SR9860061

Hoitink HAJ Fahy PC 1986 Basis for the control of soilborne plant pathogens with composts. Annual Review of Phytopathology 24 93 114 doi:10.1146/

Hoitink HAJ Stone AG Han DY 1997 Suppression of plant diseases by composts. HortScience 32 184 187

Isbell RF (1996) ‘The Australian soil classification.’ (CSIRO Publishing: Melbourne, Vic.)

Kalra YP (1998) ‘Handbook of reference methods for plant analysis. Soil and Plant Council.’ (CRC Press: Boca Raton, FL)

Nelson DW , Sommers LE (1982) Total carbon, organic carbon, and organic matter. In ‘Methods of soil analysis. Part 2. Chemical and microbiological properties’. (Eds AL Page, RH Miller, DR Keeney) (The American Society of Agronomy: Madison, WI)

Rayment GE , Higginson FR (1992) ‘Australian laboratory handbook of soil and water chemical methods. Australian Soil and Land Survey Handbook.’ (Inkata Press: Melbourne, Vic.)

Reuter DJ , Robinson JB , Peverill KI , Price GH , Lambert MJ (1997) Guidelines for collecting, handling and analysing plant materials. In ‘Plant analyses – an interpretation manual’. (Eds DJ Reuter, JB Robinson) pp. 53–68. (CSIRO: Australia)

Salvestrin J (Ed.) (1998) ‘Australian vegetable growing handbook.’ (Scope Publishing: Frankston, Vic.)

Shiralipour A , Leege PB , Portier KM (1998) ‘Beneficial co-utilisation of agricultural, municipal and industrial by-product.’ (Eds S Brown, JS Angle, L Jacobs) pp. 363–375. (Kluwer Academic Publishers: The Netherlands)

USEPA (1996) Acid digestion of sediments, sludge and soils. USEPA Method 3050B. Test methods for evaluating solid waste, physical/chemical methods. (US Government Printing Office: Washington, DC)

Weir RG , Creswell GC (1993) ‘Plant nutrient disorders 3. Vegetable crops.’ (Inkata Press: Melbourne, Vic.)

Wells T Chan KY Cornish PE 2000 Impact of different conventional and alternative farming systems on soil quality. Agriculture, Ecosystems & Environment 80 47 60

WMAA (2005) Compost industry supply chain – industry position paper. Waste Management Association of Australia, Compost Australia, The Barton Group. Available at:

Wu J Joergensen RG Pommerening B Chaussod R Brookes PC 1990 Measurement of soil microbial biomass C by fumigation-extraction—an automated procedure. Soil Biology & Biochemistry 22 1167 1169 doi:10.1016/0038-0717(90)90046-3

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