Table 1 Mean and standard deviation (SD) of nutrient content (N, P, K, Ca, Mg, and Zn) in leaves of high and low-yielding subpopulations of cowpea.

From: Continuous assessment of cowpea [Vigna unguiculata L. Walp.] nutritional status using diagnosis and recommendation integrated system approach

Nutrients

High-yielding population (93)

Low-yielding population (99)

Mean

SD

Mean

SD

N (g/kg)

44.39

6.71

31.60

8.46

P (g/kg)

11.85

3.37

6.65

2.24

K (g/kg)

33.06

6.70

28.98

6.25

Ca (g/kg)

90.93

17.09

84.76

10.71

Mg (g/kg)

7.40

2.37

5.66

2.38

Zn ((g/kg)

0.06

0.01

0.05

0.01

Yield (kg/ha)

1094.45

75.49

802.23

93.15

Back to article page