Soil pH metre Soil pH metre is a small device equipped with a probe to stick into the soil ... Then place 3 teaspoons of the soil in a clean glass. After that, pour in distilled water to agitate ...
Dip a clean glass rod into the contents of the ... You could also use a pH probe and meter to measure the pH, rather than estimating it using universal indicator. It is important in this practical ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果