PHOSPHATE (P2O5) RECOMMENDATIONS FOR ALFALFA

Yield Potential - tons per acre
Soil Test 5 6 7 8 9
ppm (lb/acre) lb P2O5 per acre
15 (30)1 115 130 140 155 165
20 (40) 90 105 115 130 140
25-40 (50-80)2 65 80 90 105 115
45 (90) 35 40 45 50 60
50 (100) 0 0 0 0 0

1 Values in parentheses are lb/acre.
2 Maintenance recommendations are given for this soil test range.

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Corn, Soybean, Wheat, and Alfalfa Field GuideBulletin 827