Services - Certified Independent Laboratory

Independent advice from certified professionals For more info visit: www.aspac-australasia.com

The Hortus laboratory is certified with The Australasian Soil and Plant Analysis Council (ASPAC) which is an independent international organisation bringing together individuals, laboratories, research and commercial organisations who share a common interest in soil and plant analysis - and the use of analytical results.

Hortus participates regularly in ASPAC’s Inter Laboratory Proficiency Programme involving more than 60 laboratories in 8 countries throughout Australasia, SE Asia, and the Pacific. We do this in order to promote industry wide best practice in sampling, analysis, interpretation and advice and to ensure our clients receive resalts at the very highest analytical standards.

Hortus Technical Services provides independent agronomic advice with every sample, unless requested otherwise. Our company does not sell, and is not aligned with any fertilizer product sales organisations. Hortus operates on a fee for service basis allowing you the freedom to source your products wherever you wish.

Soil runs are started each Monday and Wednesday and Dry Tissue, Sap, QuickSoil, Water, Hydroponic Solution and Fruit Tests samples are tested on Tuesday, Wednesday and Friday.

Hortus uses the following extraction methods for soil:

	EC	Electrical conductivity 1:5 soil-water 3A1
	pH	Soil pH, 1:5 soil-water 4A1
	OC	Organic Carbon - W&B 6A1
	Total N	Total N - Kjeldahl, steam distillation 7A1
	Nitrate - N	Water Soluble Nitrate N - autocolour 7B1
	Colwell P	Colwell Extractable P - manual 9B1
	BSES P	BSES Extractable P - 0.005 M H2SO4 9G1
	PBI	Phosphorus buffer index (with Colwell P) 9I2c
	Ca	Exchangeable Ca - 1M NH4OAc extract 15D3
	Mg	Exchangeable Mg - 1M NH4OAc extract 15D3
	Na	Exchangeable Na - 1M NH4OAc extract 15D3
	K	Exchangeable K - 1M NH4OAc extract 15D3
	Al	Exchangeable Al - 1M KCl extract 15G1
	S	KCl 40 Extractable S Blair et al5 10B1
	Cl	Water soluble Cl - potentiometric 5A1
	Fe	DTPA Extractable Fe 12A1
	Cu	DTPA Extractable Cu 12A1
	Mn	DTPA Extractable Mn 12A1
	Zn	DTPA Extractable Zn 12A1
	B	Extractable B - 0.01 M CaCl2 and 0.05 M Mannitol
	Si	Soluble Silica - 0.01 M CaCl2 13D1
	BSES Si	BSES Extractable Si - 0.005 M H2SO4

	SOIL FLOW CHART
	LAB OVERVIEW

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