Effect of Coffee Husk Compost and NPSB Fertilizers on Selected Soil Chemical Properties of Potato Field in Chora District, South West Ethiopia

Table 1

Preplanting selected soil physicochemical properties of experimental soil.

Physicochemical properties		Value	Rating	Source
Chemical properties
pH (H2O)		4.25	Highly acidic	Tadese [22]
Organic carbon (%)		4.54	Moderate	Tadese [22]
Total nitrogen (%)		0.14	Medium	Murphy [23]
Avail. P (ppm or mg kg^−1)		0.95	Low	Olsen et al. [24]
Avail. sulfur (ppm)		2.98	—
Exchangeable acidity (meq 100 g^−1)		0.60	—
CEC (meq 100 g^−1)		12.05	Low	Hazelton and Murphy [25]
Exchangeable base	Ca^2+ (meq 100 g^−1)	18.42	High	FAO [26]
	Mg^2+ (meq 100 g^−1)	8.09	High	FAO [26]
	Na+ (meq 100 g^−1)	0.02	Very low	FAO [26]
	K+ (meq 100 g^−1)	0.61	Medium	FAO [26]
Physical properties
Particle size distribution	Clay%	52.50
	Silt%	27.50
	Sand%	20.00
	Soil textural class		Clay
Bulk density (g cm^3 −1)		1.23	Moderate	Hazelton and Murphy [25]

Source: soil laboratory analysis result report for preplanting physicochemical properties.