Amount nutrient Applied (kg/ha)

Rainwater Use Efficiency (kg grain/mL of rain water)

Salima

Dedza

Lilongwe

Mean

Change

Mean

Change

Mean

Change

0K, 0P

1.50

1.44

1.76

0K, 7.5P

2.10

0.60*

2.12

0.68*

2.25

0.49*

0K, 15P

2.20

0.80*

2.02

0.58*

2.29

0.53*

0K, 22.5P

2.30

0.84*

2.07

0.63*

2.29

0.53*

20k, 0p

1.90

0.42

1.77

0.33

2.01

0.24

20k, 7.5p

1.95

0.47*

2.14

0.71*

2.31

0.55*

20k, 15p

2.22

0.74*

1.78

0.34

2.37

0.61*

20k, 22.5p

2.33

0.84*

2.23

0.79*

2.50

0.74*

15P, 10K

2.13

0.64*

1.93

0.49

2.41

0.64*

15P, 30K

2.02

0.54*

2.05

0.62*

2.22

0.46

Dianostic

2.08

0.59*

1.93

0.49

2.21

0.45

CV (%)

17.28

21.40

19.3

P (0.05)

0.00

0.01

0.01

Critical D Value

2.77

2.78

2.76