Days after application

Sterilized

Non-sterilized

% loss due to biotic forces

Residues^* (ppm)

% loss due to abiotic forces

Residues^* (ppm)

% total loss

Laterite soil

0

0.961 ± 0.009

-

0.965 ± 0.015

-

0

5

0.839 ± 0.006

12.64

0.719 ± 0.019

25.49

12.85

10

0.748 ± 0.008

22.16

0.576 ± 0.016

40.31

18.15

15

0.639 ± 0.009

33.51

0.411 ± 0.011

57.41

23.9

30

0.621 ± 0.004

35.38

0.292 ± 0.01

69.74

34.36

45

0.547 ± 0.007

43.08

0.208 ± 0.008

78.44

35.36

60

0.509 ± 0.009

47.03

0.118 ± 0.018

87.77

40.74

Regression equation

Y = 1.91 − 0.004X

Y = 1.89 − 0.014X

r²

0.867

0.975

RL₅₀ (days)

75.25

21.50

Coastal soil

0

0.953 ± 0.018

-

0.956 ± 0.021

-

0

5

0.84 ± 0.100

11.86

0.735 ± 0.100

23.12

11.26

10

0.746 ± 0.020

21.72

0.586 ± 0.010

38.7

16.98

15

0.648 ± 0.020

32

0.442 ± 0.020

53.76

21.76

30

0.584 ± 0.040

38.71

0.316 ± 0.016

66.94

28.23

45

0.563 ± 0.020

40.92

0.23 ± 0.030

75.94

35.02

60

0.516 ± 0.016

45.85

0.154 ± 0.020

83.89

38.04

Regression equation

Y = 1.89 − 0.003X

Y = 1.89 − 0.012X

r²

0.850

0.971

RL₅₀ (days)

100.33

25.08

Alluvial soil

0

0.98 ± 0.080

-

0.982 ± 0.080

-

0

5

0.844 ± 0.020

13.88

0.698 ± 0.012

28.92

15.04

10

0.736 ± 0.020

24.9

0.546 ± 0.020

44.39

19.49

15

0.626 ± 0.020

31.12

0.354 ± 0.020

63.95

32.83

30

0.591 ± 0.009

39.69

0.252 ± 0.022

74.33

34.64

45

0.535 ± 0.015

45.41

0.172 ± 0.012

82.48

37.07

60

0.493 ± 0.007

49.49

0.093 ± 0.007

90.52

41.03

Regression equation

Y = 1.91 − 0.004X

Y = 1.87 − 0.015X

r²

0.851

0.967

RL₅₀ (days)

75.25

20.06