I would like to get my PHS up to 7.0. According to your website the Plotstart raises PH by adding Calcium. if my soil test says I already have adequate Calcium levels (117ppm) then how would adding plotstart raise my soil PH by adding Calcium that I already have?
This is a great question!
PlotStart is a calcium chloride derived calcium spray that also has a proprietary recipe of complex carbohydrates that produces a highly chelated solution. The soil colloid is a negatively charged particle. Depending upon the clay makeup, it is able to hold various amounts of positively charged nutrients known as cations. The more cations it can hold the higher the cation exchange capacity of the soil. The main cations are calcium, magnesium, potassium, sodium and hydrogen. Each one of these cations has the ability to exchange places with hydrogen on the soil colloid. By the same token when any one of the cations are removed hydrogen takes its place. When hydrogen increases on the soil colloid it becomes more acidic and the pH is lowered. In contrast, the pH can be raised by the addition of any cation other than hydrogen. Due to the chelation effect of PlotStart®, varying levels of insoluble calcium can be released from the soil in addition to that in the product. When this occurs two things will be seen, an increase in the calcium base saturation level on the soil report with an upward movement of pH!