Crop

Area

Rate of fertilizer

(kg/ha)

% fertilizer applied

Qty of fertilizer (kg/ha)

Total (tons) in soil

Total leached in tons

N_f

P_f

TN_soil

TP_soil

TN_lea

TP_leac

Maize

26.56

225

47.9

112.5

56.25

8.88

3.76

2.71

1.84

Huckle berry

4.14

25 tons of farm yard manure

2 for N and 0.7 for P

500

175

1.69

1.51

1.60

0.35

amaranth

1.38

500

175

0.56

0.50

0.53

0.12

Waterleaf

0.48

500

175

0.20

0.17

0.19

0.04

Cassava

6.82

0.55

1.61

-

-

Yam

2.76

100 tons of FYM

2 for N and 0.7 for P

2000

700

0.22

0.65

0.04

0.13

Cocoyam

0.96

0.08

0.23

0.01

0.03

Total

12.17

8.44

5.08

2.51

Percentage leached into river (%)

41.74

29.74