Crop

Tillage

P

K

Zn

%

ppm

Corn

CT

0.24

0.32

12.2

Corn

NT

0.22

0.31

11.6

P-values (α = 0.05)

0.295

0.802

0.230

Significance

N.S.

N.S.

N.S.

Soybean

CT

0.50

1.66

31.3

Soybean

NT

0.54

1.70

33.4

P-values (α = 0.05)

0.014

0.090

0.155

Significance

^*

N.S.

N.S.