How to Distinguish Acidic Soil And Alkaline Soil

Acid soil, humus content is more black-brown, the soil layer is thick, loose soil, permeability and permeability is strong, grasp in the hand is more soft, wet soil is not easy to hold into a block, the surface watering does not bubble, water surface turbidity, can quickly penetrate into the subsoil, digging soil is easier.
Alkaline soil, in color, mostly light yellow-white, thin soil layer, hard soil, poor permeability and breathability, grasping in the hand relatively very hard feeling, wet soil is easy to hold into a lump and not easy to disperse after letting go, watering at the surface often white foam, the water surface is not guilty of muddy and slower penetration into the subsoil, digging soil is very that digging or very hard.

Acid or alkaline adjustment
Acidic soil improvement, you can adjust the acidity by heavily increasing the application of well-rotted farm manure or organic fertilizer, sprinkling lime, watering acid wash, etc.
Alkaline soil improvement, you can adjust the alkalinity by applying a lot of well-rotted farm manure or organic fertilizer, mixing with green manure/pine needle soil, applying calcium superphosphate/diammonium phosphate and spreading gypsum, etc.