How to adjust soil pH effectively? Soil pH meter professional measurement
The soil pH value is affected by many factors. In the long-term process, the soil is affected by climate, terrain, parent material, vegetation and other factors, resulting in changes in the pH value. For example, in places with high temperature and rain, weathering and leaching are strong. The base is easy to leaching, and it is easy to form acidic soil. Such soil is not suitable for the growth of plants. Whether the soil is acidified, you need to use a professional soil pH meter. The soil pH meter can accurately measure the pH value, and then take effective measures to adjust it. for example:
1. The soil is too acidic. You can apply 20 to 25 kilograms of lime per mu per year, and apply enough farmyard manure. Do not apply only lime without farmyard manure, so that the soil will turn yellow and thin instead.
2. When the soil alkalinity is too high, a small amount of aluminum sulfate (phosphate fertilizer needs to be supplemented for application), ferrous sulfate, sulfur powder, humic acid fertilizer, etc., the specific application amount is determined according to the pH of the soil. Frequently pouring some ferrous sulfate or aluminum sulfate diluted water can increase the acidity of the soil. Humic acid fertilizer can adjust the pH of the soil because it contains more humic acid. Aluminum sulfate is also used to adjust soil pH.
3. If there are crops in the field, acid and alkaline fertilizers can be added to adjust the soil pH. Alkaline elements such as calcium and magnesium are used to replace hydrogen ions to increase the pH value and provide nutrients to crops.
Soil PH meter is also called soil in-situ PH recorder, soil in-situ pH meter, SDT-300 soil PH meter can measure soil pH, humidity, temperature and plant light intensity, etc., which helps farmers to comprehensively analyze the soil environment.
