Need help on exercise 31 all the information is on the pictures below. Name Sect

Question

Need help on exercise 31 all the information is on the pictures below.

Name Section EXERCISE 31 PROBLEMS-PARTI Using Figure 31-1, the standard soil texture triangle, answer the following questions. Determine the soil texture for the following combinations of sand, silt, and clay. (a) Sand 20 percent: Sit 20 percent: Clay 60 percenthy 1. sa 10 Sandy Cl (b) Sand 60 percent: Silt 30 percent; Clay 10 percent: rcent; )percent; Clay 40 percent Determine a representative combination of sand, silt, and clay for the following soil textures. (a) Silty Clay: (b) Silty Loam: Sand (c) Loam 2. %; Silt 96; Silt -%; Silt 96: Clay %; Clay ; Clay Sand % Sand % 3. (a) Will a soil comprised of a combination of sand 90 percent, silt 5 percent, and clay 5 percent tend to have high or (b) (c) (d) low porosity? Will this soil tend to have high or low permeability? Is such a soil likely to dry out quickly? Why? Will a soil comprised of a combination of sand 10 percent, silt 20 percent, and clay 70 percent tend to have high or low porosity? 4. (a) (b) Will this soil tend to have high or low permeability? Is such a soil likely to allow the rapid infiltration of water from the surface? (c) (d) Why? In terms of porosity and permeability, why is loam often considered the ideal soil texture for agriculture? 5.

Explanation / Answer

1. According to figure,

a] Sand 20%, Silt 20% and Clay 60% - Clay soil

b] Sandy loam

c] Clay loam

answer

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