Why are soil colloids important in soils?
A)Soil colloids are an indication of soil moisture.The higher number of colloids,the greater the soil moisture is.
B)Without colloids,leaching would dissolve important chemicals from the soil,making them unavailable to plant.
C)Soil colloids have a neutralizing effect,increasing the overall alkalinity of soil and making them prime for certain agricultural crops.
D)As one of the shapes of an individual ped,soil colloids control rooting of plants.
E)Soil colloids is a measure of the maximum water available for plants use after the water has drained from large pore spaces.

Question

Quizplus · Accepted Answer

Soil colloids are important because they have a negative charge that attracts and holds onto positively charged nutrients, preventing them from being leached out of the soil. Without colloids, important chemicals could dissolve from the soil and become unavailable to plants.

Why Are Soil Colloids Important in Soils