Figure 2: Summary of pH requirements of various crops. This information is from the study conducted by the government of British Columbia.
Figure 3: Summary of recommended amounts of phosphorus added to soil depending on the crop grown. This information is from the study conducted by the government of British Columbia
Figure 4: Recommended sources of nitrogen for various crops. This information is from the study conducted by the government of British Columbia.
Figure 5: Summary of recommended amounts of potassium added to soil depending on the crop grown. This information is from the study conducted by the government of British Columbia.
Table 2: Determining the suitability of Soil Sample A for growing oats
Characteristic of soil |
Observed value |
Required value |
Describe how you can adjust the levels of this component in the soil |
pH level |
6.5 |
||
Nitrogen level (in ppm) |
2 |
35 ppm |
|
Phosphorus level (in ppm) |
33 |
||
Potassium level (in ppm) |
85 |
Table 3: Determining the suitability of Soil Sample A for growing potatoes
Characteristic of soil |
Observed value |
Required value |
Describe how you can adjust the levels of this component in the soil |
pH level |
|||
Nitrogen level (in ppm) |
2 |
35 ppm |
|
Phosphorus level (in ppm) |
33 |
||
Potassium level (in ppm) |
85 |
Questions:
1. Suitability of Sample A for growing oats-
Nitrogen is critical to increase the yield of oats. The observed value of Nitrogen is quite low than recommended which can adjusted by adding good nitrogen rich fertilizer such as urea.
2. Suitability of Sample A for growing potato-
For potato, the observed value is again too low for its growth so it can be increased by adding nitrogen fertilizer. Urea is the excellent source of nitrogen. Other than that Diammonium Phosphate (18% N), Ammonium Nitrate (34% N) can also be used.
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