SOIL 4234 Laboratory #5
Soil pH and Liming Pre-Lab (5 points)
Due Wednesday, September 17th (next week) at the beginning of lab
Student
Lab
TA
1. 1 pt. Name one condition that can transform neutral soils to acidic soils.
_____________________________________________________________________
2. 1 pt. Solubility of ___at low pH values is detrimental to plant growth.
a.
b.
c.
d.
Ca2+
Al3+
K+
Na+
3. 1 pt. Average the following sets of pH values using the pH definition:
Set 1: 5.2
5.8
5.3
Average:
4. 1 pt. The dilute salt used in the pH lab to measure pH is:
e.
f.
g.
h.
NaOH
NaCl
CaCl2
SMP buffer
5. 1 pt. The buffer solution for determining lime recommendations utilized in this lab is:
a. SMP
b. Sikora