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Chemical and Biological Technologies in Agriculture

Table 5 Plant P utilization efficiency index defined by [(dry matter production) × 10,000]/(shoot P concentration)

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

0.35

0.51

0.45

0.29

0.28

0.37

0.39

0.68

0.56

0.44

0.54

0.47

 Second

2.60

2.50

1.80b

2.65

3.06

2.37c

2.29

2.29

1.26a

2.35

2.53

2.04c

 Third

3.21

2.56

1.85a

3.14

2.86

2.76b

3.21

2.60

1.56a

3.55

2.89

2.39b

  1. Data followed by the same lowercase letter in each row are not statistically different from each other (Fisher’s test, P < 0.05)
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