Soil pH SAF Test

Soil pH SAF Test
Please fill out your email address in the first box and your name and SAF CFE number in the second box. Answer the questions below and when your are finished, press submit.

Email Address :
Name :

Question: 1. Soil pH is a measure represented by a number on a scale on which:
1 is extremely alkaline.
7 is neutral.
14 is very acidic.
all of the above.

Question: 2. The most accurate method of determining soil pH is by:
indicator dyes.
using paper strip indicators.
a pH meter.
all of the above.

Question: 3. Soil pH is important because it influences:
plant growth.
beneficial bacteria growth.
soil structure.
all of the above.

Question: 4. The pH:
is an indication of fertility.
affects the solubility and availability of nutrients.
.limits plant growth.
all of the above.

Question: 5. Soils tend to become acidic as a result of:
rainwater leaching away basic ions.
decaying organic matter.
oxidation of ammonium and sulfur fertilizers.
all of the above.

Question: 6. Acidic soil can be improved with:
calcium carbonate.
calcium hydroxide.
calcium oxide.
all of the above.

Question: 7. Alkaline soil can be improved with:
limestone.
ammonium sulfate.
slaked lime.
all of the above.

Question: 8. Tree growth in acidic soil can be assisted by:
adding lime at the time of planting.
planting trees that tolerate the existing pH.
turning the soil frequently.
all of the above.

Question: 9. Tree growth in alkaline soil can be assisted by:
adding well-decomposed organic matter at the time of planting.
planting trees that tolerate the existing pH.
adding sulfur at the time of planting.
all of the above.

Question: 10. The final step in the process of creating and maintaining better soil pH levels:
is to properly prepare soils.
is to use alkaline irrigation water.
is to use organic mulch..
all of the above.

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