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Environmental Systems Research

Table 3 Effect of nitrogen and phosphorus fertilizer on aboveground biomass N uptake of Obatampa maize variety biomass 55 DAS at Ejura during the major and minor season, 2008

From: The effect of phosphorus and nitrogen fertilizers on grain yield, nutrient uptake and use efficiency of two maize (Zea mays L.) varieties under rain fed condition on Haplic Lixisol in the forest-savannah transition zone of Ghana

Treatment combination

Biomass N uptake (kg ha−1)

N (kg ha−1)

P (kg ha−1)

Expt. 1

Expt. 2

Expt. 3

Expt. 4

N1P1

0

0

39

33

33

18

N1P2

0

30

41

35

36

30

N1P3

0

60

41

35

36

31

N2P1

40

0

65

55

50

37

N2P2

40

30

69

59

65

57

N2P3

40

60

73

60

66

58

N3P1

80

0

76

77

59

45

N3P2

80

30

90

81

78

58

N3P3

80

60

93

81

79

67

N4P1

120

0

81

76

60

49

N4P2

120

30

93

94

76

62

N4P3

120

60

94

94

76

67

Mean

  

71

65

59

48

Effects

F-probability

N

**

**

**

**

P

**

**

**

**

N * P

**

**

**

**

  1. Expt. 1 Ejura farm major season, Expt. 2 Agric College major season, Expt. 3 Ejura farm minor, Expt. 4 Agric College minor season, NS non-significant
  2. *, ** Significant at 0.05 and 0.01, respectively
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