Table 10.

Result of PCA on soil quality parameters recorded from 0–15 cm and 15–30 cm soil layers after harvesting of wheat

Statistics/Variable	After Wheat Harvest
	0–15 cm Soil Layer			15–30 cm Soil Layer
	PC1	PC2	PC3	PC1	PC2	PC3
Eigen values	7.95	1.58	1.15	5.94	2.05	1.31
% of variance	61.17	12.18	8.86	49.50	17.05	10.95
Cumulative % of variance	61.17	73.35	82.21	49.50	66.55	77.50
Eigen vectors
Walkley Black C	0.612	0.117	0.053	0.054	0.003	0.499
Permanganate Oxidizable C	0.835	0.067	0.031	0.880	0.011	0.020
Microbial biomass C	0.839	0.001	0.067	0.917	0.002	0.011
Dehydrogenase activity	0.856	0.011	0.000	0.866	0.031	0.021
Acid Phosphatase activity	0.733	0.020	0.092	0.848	0.018	0.001
Alkaline Phosphatase activity	0.415	0.320	0.011	0.548	0.245	0.042
Urease activity	0.834	0.014	0.126	0.818	0.076	0.015
Available N	0.133	0.754	0.000	0.264	0.047	0.291
Available P	0.695	0.008	0.112	0.684	0.007	0.032
Available K	0.189	0.013	0.606	0.034	0.493	0.203
Total Organic C	0.635	0.005	0.015	0.024	0.786	0.025
Total Inorganic C	0.479	0.146	0.019	0.000	0.324	0.152

Bold letters show the values that are loaded for the corresponding PC. Underlined values are highest within a particular PC