Soil texture "تركيبة التربة"

Soil texture = the size of particles
Clay (smallest), silt, sand (largest)
Loam = soil with an even mixture of the three
Influences how easy it is to cultivate and let air and water travel through the soil
Silty soils with medium-size pores, or loamy soils with mixtures of pore sizes are best for plant growth and crop agriculture

Soil structure = a measure of soil’s “clumpiness”
Large clumps can discourage plant roots
Repeated tilling compacts soil
Plowpan = a hard layer resulting from repeated plowing that resists water infiltration and root penetration
Soil pH = influences a soil’s ability to support plant growth
Soils that are too acidic or basic can kill plants

Soil pH = influences a soil’s ability to support plant growth
Low pH (acidic), high pH (basic)
Soils that are too acidic or basic can kill plants