Table 9.

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

Statistics/Variable	After Rice Harvest
	0–15 cm Soil Layer			15–30 cm Soil Layer
	PC1	PC2	PC3	PC1	PC2	PC3
Eigen values	7.68	1.31	0.98	6.58	1.54	1.16
% of variance	63.99	10.92	8.16	54.88	12.82	9.64
Cumulative % of variance	63.99	74.91	83.07	54.88	67.71	77.35
Eigen vectors
Walkley Black C	0.243	0.031	0.432	0.053	0.482	0.243
Permanganate Oxidizable C	0.806	0.027	0.049	0.902	0.002	0.000
Microbial biomass C	0.898	0.182	0.042	0.948	0.001	0.009
Dehydrogenase activity	0.776	0.062	0.028	0.857	0.000	0.008
Acid Phosphatase activity	0.902	0.024	0.016	0.942	0.000	0.000
Alkaline Phosphatase activity	0.859	0.024	0.016	0.917	0.008	0.000
Urease activity	0.931	0.012	0.024	0.819	0.073	0.000
Available N	0.341	0.307	0.121	0.106	0.002	0.722
Available P	0.689	0.056	0.035	0.628	0.008	0.007
Available K	0.211	0.335	0.187	0.102	0.335	0.027
Total Organic C	0.607	0.074	0.009	0.181	0.188	0.120
Total Inorganic C	0.372	0.444	0.001	0.130	0.438	0.032

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