Author Question: The spacing of laterals in a subsurface drainage system is determined by the horizontal ... (Read 59 times)

Melani1276 · **on:** Jul 21, 2018

The spacing of laterals in a subsurface drainage system is determined by the horizontal ___________________ _ of the soil.

Fill in the blank(s) with correct word

Question 2

If water moves slowly into the soil, a ____ surface slope is recommended.

A) 0.5 percent
B) 3 percent
C) 10 percent
D) 25 percent