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Table 4 Fertilizer efficiency index defined by [(dry matter production) × 100]/(added P to the soil)

From: Improving the short-term efficiency of rock phosphate-based fertilizers in pastures by using edaphic biostimulants

Treatments RP SSP RP/Trp RP/(HA–Trp)
Added P (mg kg−1 soil) 10 30 50 10 30 50 10 30 50 10 30 50
Harvest
 First 5.83 0.36 0.25 5.49 0.27 0.24 5.95 0.52 0.29 6.37 0.39 0.27
 Second 18.37a 0.80c 0.48 21.56b 1.02d 0.71 19.58b 0.92d 0.51 22.53b 0.95d 0.65
 Third 18.70a 0.73c 0.46d 19.73b 0.90d 0.69e 21.04b 0.77c 0.46d 23.29b 0.79c 0.60e
  1. Data followed by the same lowercase letter in each row are not statistically different from each other (Fisher’s test, P < 0.05)