Effect of Phosphorus and Potassium Fertilizers Application on Soil Chemical Characteristics and Their Accumulation in Potato Plant Tissues

Table 1

Soil’s physical and chemical properties of the experimental site before fertilization.

Soil depth (cm)	Particle size (%)			pH (H2O)	OC (%)	Available P (ppm)	Total N (%)	Exchangeable cations(cmol kg^−1 soil)
	Sand	Silt	Clay					K^+	Na^+	Ca^++	Mg^++	CEC
0–30	17	49	34	5.1	0.75	8.52	0.06	0.136	0.25	9.83	3.37	19.1

where OC = organic carbon; P = phosphorus; N = nitrogen; K = potassium; Na = sodium; Ca = calcium; Mg = magnesium; CEC = cation exchange capacity.