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Table 4 Means comparison of measured nutrient acquisition during 2 harvests under control treatment (non-saline) and salinity treatment within different growing systems

From: Improving productivity and soil fertility in Medicago sativa and Hordeum marinum through intercropping under saline conditions

 

Harvest 2

Harvest 3

MMs

MHm

PI

MC

MMs

MHm

PI

MC

Control

Na+

2.53 ± 0.4a

2.00 ± 0.01b

1.44 ± 0.01c

2.10 ± 0.1b

 

2.04 ± 0.04c

2.55 ± 0.05b

3.02 ± 0.02a

2.53 ± 0.03b

K+

2.13 ± 0.02b

2.33 ± 0.1a

2.10 ± 0.1b

2.13 ± 0.01b

 

7.23 ± 3.4a

1.55 ± 0.05b

2.02 ± 0.02b

1.51 ± 0.01b

K+/ Na+

0.82 ± 0.01d

1.14 ± 0.02b

1.44 ± 0.01a

0.94 ± 0.01c

 

0.82 ± 0.03a

0.61 ± 0.01b

0.64 ± 0.04b

0.55 ± 0.05c

Ca2+

19.22 ± 0c

21.82 ± 0b

26.71 ± 0.01a

16.64 ± 0.01d

 

31.04 ± 0.04c

37.04 ± 0.04a

10.42 ± 0.02d

36 ± 0.05b

Mg2+

1.63 ± 0a

1.03 ± 0c

0.91 ± 0.02d

1.35 ± 0.01b

 

1.107 ± 0.005c

2.32 ± 0.03a

1.017 ± 0.02d

1.92 ± 0.02b

Ca2+/Mg2+

11.54 ± 0c

20.43 ± 0b

25.14 ± 4a

11.93 ± 0c

 

24.84 ± 0.03a

15.75 ± 0.05b

10.05 ± 0.05c

18.54 ± 0.04b

 

NaCl

Na+

2.66 ± 0.1b

3.44 ± 0.7a

2.26 ± 0.3b

2.1 ± 0ab

 

2.6 ± 0.12c

3.76 ± 0.28ab

3.38 ± 0.7b

4.48 ± 0.2a

K+

2.04 ± 0.1a

2.1 ± 0.1a

2.28 ± 0.4a

2.02 ± 0a

 

1.7 ± 0.02ab

1.06 ± 0.3c

2.02 ± 0.3a

1.44 ± 0.2bc

K+/ Na+

0.77 ± 0.1ab

0.64 ± 0.2b

1.05 ± 0.3a

0.673 ± 0b

 

0.66 ± 0.04a

0.28 ± 0.06b

0.64 ± 0.25a

0.32 ± 0.04b

Ca2+

15.14 ± 3.8c

29.24 ± 2a

27.6 ± 1.6ab

22.68 ± 2.7b

 

33 ± 4.8a

35.24 ± 4.44a

10.1 ± 0.94b

17.52 ± 3.8b

Mg2+

1.74 ± 0.1a

1.40 ± 0.3a

1.34 ± 0.4a

1.31 ± 0a

 

1.78 ± 0.14a

2.06 ± 0.06a

0.76 ± 0.01b

1.13 ± 0.42b

Ca2+/Mg2+

8.94 ± 2.9b

21.82 ± 4.5a

22.38 ± 3.5a

17.24 ± 1.5ab

 

18.91 ± 4.2a

17.08 ± 1.65ab

13.24 ± 1.14b

15.01 ± 1.49ab

  1. Mean ± Standard Deviation (SD). Cropping mode investigated: monoculture of M. sativa (MMs), monoculture of H. marinum (MHm), parallel intercropping (PI), mixed cropping (MC). Means followed by the same letter(s) or common letters are not significantly different among the cultivation modes for each parameter according to Duncan test at 5%