A series of experiments were conducted on the three main types of soil labelled A,
Band C to determine their porosity, water holding capacity and pH. The results
obtained are as shown in the table below:
Soil type |
Time taken for first drop of |
Volume of water that drained |
Soil pH |
|
water to pass through the soils |
through the soils [ern"] |
|
|
(mins.) |
|
|
A |
12.0 |
70.0 |
3-9 |
B |
52.0 |
30.0 |
8.7 |
C |
32.0 |
50.0 |
7.0 |
(a) Identify the soil types labelled A,B,C. [3 marks]
(b) If 100cm3 of water was poured onto each type, determine the water holding
capacity of each of the soil types labelled A,B,C. [3 marks]
(c) Interpret the pH value of each soil type as given in the table. [3 marks]
(d) Which of the three soil types is likely to be most productive? Give two reasons
for your answer. [3 marks ]
(e) (i) Which of the soil types A, B, and C is likely to be least productive? [1 mark]
(ii) Suggest two ways of improving the least productive soil. [2 marks]
