Table 1.

Soil characteristics in the experimental field in a two-year study.

Soil characteristics	Year
	2015	2016
Texture class1	Silty clay	Silty clay
Sand (2–0.05 mm)	19%	22%
Silt (0.05–0.002)	71%	69%
Clay (<0.002)	10%	9%
pHKCl	6.6	6.8
Total nitrogen (g kg−1)	1.3	1.4
Organic carbon (g kg−1)	19.7	18.9
Available forms (mg kg−1)
Phosphorus	170	182
Potassium	197	205
Magnesium	51	57
Copper	45.2	40.6
Manganese	191.2	183.6
Iron	932	952
Zinc	9.0	10.2

¹According to [32].