Soil Test

Soil Test from Hortus Technical Services

By: Hortus Technical Services  09-Jan-2013
Keywords: Soil Test, Agronomist

Soil analysis is the foundation by which all our agronomic advice is derived. When combined with a range of analysis such as quick soil, water and SAP, it provides a complete picture of your crops nutrients – those locked up, those in reserve and those in circulation. 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

Keywords: Agronomist, Soil Test

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