What to know from your soil test
Cation Exchange Capacity (CEC) is the ability of the soil to exchange cations or in other words nutrients. Sands have very low CEC and clays are very high but have poor soil growing conditions for turfs.Most important cations for turf/plant growth: Hydrogen, Calcium, Magnesium, Potassium, Sodium, Ammonium
The pH of a soil also plays an important part in turf/plant growth. The pH scale ranges from 1-14: 0-6 being acidic and 8-14 being alkaline/basic and 7 is neutral. If soil is too acidic (excessively low) think about “liming” it. Add gypsum when Ca is needed but no pH change is necessary and also at the same time that there is too much sodium
Potassium is recommended when turf has undergone considerable change in the past 3 decades.
Maximum tissue growth occurs at lower levels of pH
Zinc and Manganese at high levels cause a potential hazard and can become a toxicity to turf.
To collect a soil sample from your own grass- collect 15-20 random samples between 3-6 in.