by Will Stockton | Jun 3, 2026 | Agricultural Methods
Fertiliser Testing Fertiliser and Nutrient Feed come in many forms. The key to performing accurate testing is in the sample preparation. Solid fertilizer will need to be mixed with deionised water and diluted to the appropriate concentration. This will normally be 5g...
by Paul Stockton | Aug 5, 2025 | Agricultural Methods, Electrochemistry Theory, Technical Articles
Soil Testing To measure the Nutrient or Ion content in a soil sample requires these ions to be extracted from the soil before any analysis can take place. This extraction needs to be simple, accurate and consistent to ensure the results are meaningful and...
by Will Stockton | Jun 21, 2024 | Agricultural Methods, Technical Articles, Water Testing
The Determination Of Sulphate In Water As there is no direct measuring ISE for Sulphate in water, the analysis is performed using a sample subtraction technique with a Lead ISE as the sensor. There is no limit to the concentration range of Sulphate being measured. All...
by Will Stockton | May 30, 2024 | Agricultural Methods
Determination of Potassium in Soils Below the method for determination of Potassium in soil is outlined: Equipment Required 1. Model QP459 Ion Meter 2. 3031 Potassium Combination ISE 3. 21314 Potassium 1000ppm Standard Solution 4. 30314 Potassium Ionic Strength...
by Will Stockton | May 23, 2024 | Agricultural Methods, pH, Conductivity & DO
Determining the pH of Mineral Soil The pH of a mineral soil is defined as the pH, measured potentiometrically, of the suspension obtained by shaking the soil with water under controlled conditions. Equipment Required: 1. EDT directION pH Meter Model QP451 (All other...
by Paul Stockton | May 16, 2024 | Agricultural Methods
