Table 4 Effect of type and rate of biochar application on nitrification (%) of applied urea-N.

From: Biochar influences nitrogen and phosphorus dynamics in two texturally different soils

Treatment

Incubation time (days)

1

3

5

7

15

30

60

Clay loam

 Type of biochar

  RSB

3.5a

12.3a

37.0a

55.4a

48.9.1a

53.2a

53.4a

  ACB

0.6b

8.1b

31.5b

47.1b

44.2b

48.6b

49.8b

 Rate of biochar (g kg−1)

  0

1.3a

10.2a

32.1b

35.0b

31.5b

45.5b

45.6b

  5

1.7a

10.5a

35.4a

58.0a

53.5a

52.6a

54.3a

  10

2.1a

9.9a

35.0a

60.8a

54.5a

54.9a

54.8a

Loamy sand

 Type of biochar

  RSB

5.3a

13.3a

26.3a

32.4a

40.7a

41.5a

33.4a

  ACB

2.3b

10.5b

23.6b

29.3b

35.5b

34.9b

26.5b

 Rate of biochar (g kg−1)

  0

4.4a

15.3a

20.0b

16.9b

26.9b

21.5b

29.6b

  5

3.4a

10.5b

26.3a

38.7a

43.8a

31.4a

30.2a

  10

3.5a

9.8b

28.4a

37.2a

43.5a

31.6a

30.0a

  1. LSD 0.05 for interaction: NS.
  2. RSB-Rice straw biochar, ACB-acacia biochar.
  3. Within a column, means followed by the same letter are not significantly different at a 0.05 probability level.
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