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Soil, Soil improvers, growing media, hydroponic solution

[Soil, Soil improvers, growing media, hydroponic solution]

EPTIS factsheet 1350549 | Last revision 2025-05-19 | URL: https://www.eptis.bam.de/pts1350549 https://www.eptis.bam.de/pts1350549

PT provider
PT provider Hortifocus Hortifocus
Based in Netherlands
Language(s) English
Remarks For Growing media & Soil Improvers an European methods is being used. In practical horticulture a fast, reliable and cheap chemical analysis of soil, growing medium and hydroponic nutrient solution is being used. Soil and growing medium extraction method was developed by Wageningen-University & Research. The data of the laboratories are used for optimization of the fertilizer dose. See: Kreij,-C-de; Wever,-G. Proficiency testing of growing media, soil improvers, soils, and nutrient solutions. Communications-in-Soil-Science-and-Plant-Analysis. 2005; 36(1/3): 81-88
Keywords
Product groups Agriculture
Testing fields Analytical chemistry
Technical details
Test item Tested property Testing method
Growing media and Soil Improvers pH,EC,Na,Cl,K,Ca,Mg,NH4,Si,HCO3,NO3,SO4,P,Si,Cu,Fe,Zn,B,Mo,Mn EN methods Soil improvers & Growing media, and 1:1.5 v/v water extraction
Hydroponic solution pH,EC,Na,Cl,K,Ca,Mg,NH4,Si,HCO3,NO3,SO4,P,Si,Cu,Fe,Zn,B,Mo,Mn -
SOIL pH,EC,Na,Cl,K,Ca,Mg,NH4,Si,HCO3,NO3,SO4,P,Si,Cu,Fe,Zn,B,Mo,Mn 1:2 v/v water extraction
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Aims of the PT scheme
Target group of participants Chemical laboratories for horticulture
Linked to specific legislation / standards EN methods for Soil Improvers & Growing media Standards 1:2 v/v (soil), 1:2.5 v/v (growing media) is developed by the horticultural industry
Additional, subsidiary aims
Number of participants 7-10
Accredited or otherwise reviewed by a 3rd party

Wageningen-University & Research

Operation is commissioned / requested by
Fees and frequency
Participation fee Euro 700 - 1200
Regularly operated Yes (quarterly (horticultural industrial methods) or yearly (EN methods))
Year of first operation 1994
Contact details of the PT provider
Provider Contact person
Hortifocus
Pater Damiaanstraat 48
2131 EL Hoofddorp
Netherlands

Phone: +31644084074
Fax:
MSc Cees De Kreij
Phone: +31644084074
Fax:
Email: cees.dekreij@12move.nl cees.dekreij@12move.nl
If you find any mistakes please contact the responsible EPTIS coordinator in Netherlands, Mr Peter van Otterloo. Mr Peter van Otterloo.
Any questions or problems? Please contact us at eptis@bam.de.
Application version: 1.23-SNAPSHOT.20230502124635-7925ae379a631fc1ececff45d2921c8db38877d5