CCA Practice Questions - Certified Crop Adviser (International) Exam

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A soil test reports 30 ppm P (Bray P1). Approximately how many pounds of P per acre does this represent in the top 6 inches (assuming a bulk density of 1.3 g/cm3)?

30 lb P/acre (incorrect for this management context) 60 lb P/acre 78 lb P/acre (incorrect for this management context) 150 lb P/acre (incorrect for this management context)

Correct Answer:

60 lb P/acre

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