OM (%)

NH₄-N

NO₃-N

P

K

Ca

Mg

Cu

Fe

Mn

Zn

Open field

2.44

11.06

5.57

81.86

320.13

2183.43

348.85

0.96

30.76

12.14

1.40

High tunnel

6.08

17.27

30.28

493.83

821.68

3109.83

393.96

1.03

41.14

21.89

15.63

**

NS

*

**

**

**

*

NS

*

**

**