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Table 6 N, P and K uptake (kg ha−1) on straw and grain of wheat as affected by interaction effect of N and K

From: Nutrient uptake, use efficiency and productivity of bread wheat (Triticum aestivum L.) as affected by nitrogen and potassium fertilizer in Keddida Gamela Woreda, Southern Ethiopia

Treatment

N

K

Straw N

Grain N

Total N

Straw P

Grain P

Total P

Straw K

Grain K

Total K

 

0

6.8h

22.7e

29.6e

0.37f

2.7f

3.4f

10.2h

2.6e

12.8g

0

30

7.5fgh

37.5cd

45d

1.3bc

4.9e

6.25e

14.8fg

6.7d

21.57f

 

60

8.8efg

35.3d

44.2d

1.1c

5.8de

6.28e

12gh

6.5d

19.16f

 

0

10cde

47.1c

57.4c

0.59e

6.4cd

7.02de

12.6gh

7.4cd

20.09f

23

30

9.52de

44.6cd

54.1cd

0.8d

6.8c

7.7d

21.9d

8.55c

30.5de

 

60

7.4gh

45.7cd

53.17cd

0.7de

5.8de

5.72e

19.2de

7.8cd

26.99e

 

0

9.17ef

70.5b

79.7b

1.4b

8.8b

10.0bc

16.5ef

11.5b

28de

46

30

13.8b

101a

115.18a

1.3bc

9.7b

10.95b

29.23c

15.4a

44.63c

 

60

11.2cd

67.8b

79.04b

1.3bc

9.2 b

10.97b

19.4de

12.b

31.5d

 

0

10.1cd

69b

79.5b

1.2c

8.4b

9.5c

39.3b

11.3b

50.65b

69

30

17.2a

95.5a

112.76a

1.8a

13.2a

15.1a

44.3a

14.9a

59.3a

 

60

11.9bc

70b

81.9b

1.3bc

8.9b

10.3bc

36.1b

10.6b

46.8c

LSD 0.05

2.13

11.31

10.77

0.26

1.36

1.28

4.48

1.81

4.31

CV%

S

 

12.23

1.02

11.35

6.49

9.19

6.16

10.9

0.12

11.1

0.83

9.12

0.79

11.51

2.28

11.2

1.06

7.81

2.23

  1. Means followed by the same letters within a column are not significantly different at 5% probability level * and **, significant at 5 and 1% level of significance, respectively, ns nonsignificant difference, CV (%) coefficient of variation in percent, S standard deviation