Table 1. Soil tests from the experimental sites.  Chlorosis trials, North Dakota, 2009.

 

 

 

 

Measurement

Units

Ayr

Hunter

Leonard

0-6" depth

 

 

 

 

 

 

 

 

 

pH

 

8.0

8.3

8.4

EC

mmho/cm

0.9

0.4

0.3

CaCO3

%

5.8

3.7

15.5

 

 

 

 

 

Org. matter

%

4.4

3.0

5.2

Av. P

ppm

9

11

3

Av. K

ppm

400

45

15

DTPA-Fe

ppm

2.7

2.1

4.2

 

 

 

 

 

0-24"  depth

 

 

 

 

 

 

 

 

 

Nitrate-N

lb/A

78

100

42

Sulfate-S

lb/A

1000

103

115