1- Using the above chart, study relative availability of nutrients ( N, P, K ) in relationship to soil pH. Do you notice a correlation between soil pH & availability of nutrients ( N, P, K ) ?
2- Within
which pH range does Nitrogen level become highest/lowest?
Within which pH range does Phosphorus level become highest/lowest?
Within which pH range does Potassium level become highest/lowest?
3- What hypothetical statement can you make about relationship between:
pH & Nitrogen level?
pH & Phosphorus level?
pH & Potassium level?
4- On graph paper,
make a hypothetical graph for each of 3 nutrients:
( N, P, K ) in
regards to soil pH.
Use the following nitrogen example as a guide.
6- Take soil samples
from your locality & conduct following soil tests:
(pH level, N,
P, K ) as per instructions of LaMotte Soil Test Kit or similar
& record readings (data) in a chart similar to the one below.
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7- Using collected data, make graphs for each of nutrient levels similar to those graphs shown in step #4.
8- Compare actual
graph result to hypothetical.
Are
they similar? Yes/no? Explain.
9- Does evidence
of actual graphs support hypothesis? Yes/no?
Explain
why/why not?
10- Draw conclusion.
11- Go to view data & using compiled information from data base plot all school soil readings on 3 individual graphs for N, P, K in relation to pH.
12- Record observations
for N.
Record observations for P.
Record observations for K.
13- Does correlation exist between: