How to Identify Acid Base Property of Soil (Part 2)

1.The state after watering

Acidic soil infiltrates faster after watering, no white bubbles, and the water surface is muddy; after alkaline soil is watered, infiltration is slow, the water surface is bubbling and foaming, and sometimes there is a layer of white alkaline substances on the surface. .

2. Quality judgment

The acidic soil is loose in texture and has strong air permeability and water permeability; the alkaline soil has a hard texture and is easy to harden into lumps, and the soil is easy to harden.

3. PH test paper

Put a little soil sample into distilled water, dissolve it for a while, put the pH test strip in it and let it stand for 2 seconds, then take it out and compare it with the colorimetric card. pH>7, it is alkaline soil, pH<7, it is acidic soil.