Year

Season

MgO^a

CaO^a

K₂O^a

NO₃-N^a

NH₄-N^a

Br-P₂O₅^a

Mn^a

Fe₂O₃^b

pH

Ec^c

Air temperature^d

2010

June

13.2

140.7

4.4

2.4

1.6

8.4

0.2

3.2

5.9

17.7

24.8

August

8.9

143.3

3.7

1.7

1.8

8.4

0.2

3.3

5.8

17.3

29.9

November

9.7

121

6.2

1.6

1.8

10.1

0.2

3.5

5.6

17.7

19.6

2011

February

14.4

140.3

4.2

1.8

2.2

10.1

0.1

3.6

5.7

19.3

11

2011

June

10.6

146.3

3.9

1.1

2.8

10.5

0.1

3.2

5.7

15.7

26.3

August

11.9

139.3

2.6

1.2

2.5

11.5

0.1

3.6

5.6

17.3

31.1

November

13.3

141.3

6.3

1.4

2.5

13.2

0.1

2.8

5.6

18.7

14.8

2012

February

13.4

123.3

4.4

0.9

1.1

11.2

0.2

3.9

5.9

17.3

14.3

2012

June

14.6

111.3

3.8

1.9

1.7

12.2

0.1

2.6

5.6

15.3

25.6

August

16

129

5.8

1.5

1.9

7.1

0.2

3.1

5.5

18

27.6

November

12.8

112

6.1

1.4

1.3

9.8

0.1

2.8

5.4

18

16.7

2013

February

10.1

103

4.1

0.6

1.7

8.6

0.2

2.8

5.6

16.7

10.5