Table 3.

Physical and chemical indexes of soil samples.

Sampling time	pH	Water content(%)	Organic matter (g·kg−1)	TN (mg·kg−1)	TP (mg·kg−1)	TK (mg·kg−1)	T (°C)
201804	7.49 ± 0.20	22.24 ± 1.86	15.52 ± 0.85	78.67 ± 3.28	74.93 ± 1.84	71.84 ± 5.73	19.6 ± 1.8
201805	7.85 ± 0.24	29.05 ± 1.48	21.12 ± 0.73	130.34 ± 6.46	112.21 ± 4.17	21.12 ± 1.30	21.6 ± 2.1
201806	6.94 ± 0.99	29.71 ± 1.01	24.25 ± 0.87	109.39 ± 5.11	75.43 ± 4.16	24.25 ± 1.75	26.9 ± 1.0
201807	7.43 ± 0.22	30.1 ± 0.61	21.96 ± 0.78	131.04 ± 2.36	106.02 ± 3.02	21.96 ± 1.47	28.1 ± 0.8
201808	7.61 ± 0.37	27.88 ± 1.55	20.06 ± 1.06	127.08 ± 10.75	126.48 ± 4.91	22.39 ± 1.23	29.1 ± 0.7
201809	7.45 ± 0.29	23.8 ± 0.50	12.58 ± 1.11	67.73 ± 2.81	99.43 ± 5.26	12.58 ± 1.11	24.8 ± 1.5
201810	7.42 ± 0.33	37.05 ± 1.66	36 ± 1.13	154.05 ± 5.86	32.61 ± 1.73	181.48 ± 5.87	13.6 ± 0.5
201811	7.36 ± 0.70	30.4 ± 0.92	39.36 ± 2.34	128.2 ± 6.26	36.45 ± 1.74	157.78 ± 9.94	6.2 ± 1.3
201812	7.59 ± 0.70	25.58 ± 1.31	53.07 ± 3.18	235.1 ± 15.74	34.74 ± 3.35	219.51 ± 7.59	6.1 ± 0.2
201901	8.02 ± 0.30	27.33 ± 1.36	15.45 ± 1.08	108.93 ± 1.25	59.19 ± 3.41	15.45 ± 1.09	3.1 ± 0.9