Evaluating Slow Pyrolysis of Parthenium hysterophorus Biochar: Perspectives to Acidic Soil Amelioration and Growth of Selected Wheat (Triticum aestivum) Varieties

Table 2

Results of the general linear model procedure, analyzing the effect of parthenium biochar dosages and soil sample years on the soil physical properties.

Sources of variations	DF	Sand (%)		Clay (%)		Silt (%)		SMC (%)
		MS	P	MS	P	MS	P	MS	P
SSY	1	2.8		2.2		0.2		0.035
PBD	5	15.2		7.1		4.2		30.06
	5	1.6		1.2		2.98		0.40
Error	24	0.69	—	0.69	—	1.42	—	0.3	—
Mean		58.4	—	22.02	—	19.7	—	19.13	—
R-square (R^2)		0.84	—	0.72	—	0.52	—	0.95	—
Total	36	3412.4	—	486.6	—	390.0	—	370.32	—

Note. SSY, soil sample years; PBD, parthenium biochar dosages; MS, mean square; P, probability level; DF, degree of freedom, and SMC, soil moisture content.