30
Three percent is the percentage of organic matter in average soil. Organic matter content may range from one percent in the sandiest soils to five percent in the healthiest soils. Its percentage varies according to the amount of living or once-living animal and plant matter, the degree of moisture infiltration and percolation, and the soil pH.
3%
95.7548748957956749%.
36.3 %
30
Three percent is the percentage of organic matter in average soil. Organic matter content may range from one percent in the sandiest soils to five percent in the healthiest soils. Its percentage varies according to the amount of living or once-living animal and plant matter, the degree of moisture infiltration and percolation, and the soil pH.
3%
95.7548748957956749%.
36.3 %
19%
Average pH of soil is between pH 4.0 and 8.5.
No magnet can attract soil unless the soil has a high percentage of magnetic material in it such as iron or nickel.
The water content of soil is expressed as a percentage, i.e. the percentage of the soil that is water. To calculate, weigh the mass of a sample of soil. Let this be W. Then dry the soil in an oven (be careful not to burn it) and weigh the dry soil. Let this be D. The soil moisture content, M = W-D/W x 100.
The textural class of soil is determined by the percentage of sand, silt, and clay.
Water
Soil with a high concentration of clay is able to hold water.