Water & soil pH. Salinity, conductivity. Fertilizer concentration. Plant health can be greatly affected by pH (acidic or basic), salinity (soluble salts), and alkalinity, yet these factors are often ignored by growers. It is easy to test for these three important parameters using a portable MyronL AGRI-METER with Soil Test Kit.
Dissolved salts (salinity) in soil must also be monitored to guarantee healthy plants. Salt build-up in soil can be due to high TDS (total dissolved solids) in water, excess fertilizer, or poor drainage. Each plant has its own salinity tolerance level. If excessive salts accumulate in the soil, roots will take in little or no soil solution, resulting in reduced plant growth and quality.
Using a Myron L Model AG6/PH for checking soil salinity and pH is easy. Simply mix one part soil with two parts pure water in the vials provided with the Soil Test Kit. Some organic media, such as peat moss, need a 5:1 water: soil dilution ratio. Only a heaping tablespoon of soil is required. Agitate container vigorously. Let settle for 45-60 minutes and decant the water into the instrument cell cup. Push buttons to read directly in millimhos/conductivity (salinity) and soil pH.
The correct pH of water used in pesticide solutions is also important in order to insure maximum effectiveness and prevent pesticide “break down”.
Step 2: Push black button and read conductivity.
Step 3: Push red button of Model AG6/PH and read pH