Domain: society (Horticulture and Plant Care)
Problem: I own a 296-square-foot community test plot. Based on the final results shown on the soil test kit in the photo, please help me calculate the total weight of amendments required to treat this land. The remediation rules are as follows:
First, for pH adjustment: My goal is to lower the soil pH to 6.5 using elemental sulfur. The standard application rate is 0.8 lbs per 100 sq ft for every 0.5 pH unit above the target (no application is required if the current pH is below the target).
Second, for nutrient replenishment: Regarding Nitrogen (N) and Phosphorus (P), I need to apply a dual-action compound fertilizer. The application rate is determined by the lower (worse) reading of the two. If the worst level is 'Surplus' or 'Sufficient', do not apply; for 'Adequate', apply 2 lbs per 100 sq ft; for 'Deficient', apply 5 lbs per 100 sq ft; and for 'Depleted', apply 10 lbs per 100 sq ft.
Please accurately read the colors of the liquid in the test tubes against the scale on the color chart in the image, and calculate the total combined pounds of sulfur and fertilizer I need to purchase.
Answer: 34.336