Morphological variation in Cynodon dactylon (L.) Pers., and its relationship with the environment along a longitudinal gradient

Table 3 Soil nutrient contents and pH at 13 collection sites for wild bermudagrass at different longitudes along latitude 34^oN

Code	TN (g∙kg⁻¹)	AN (mg∙kg⁻¹)	SOM (g∙kg⁻¹)	AK (mg∙kg⁻¹)	AS (mg∙kg⁻¹)	AP (mg∙kg⁻¹)	Exchangeable Ca (g∙kg⁻¹)	Exchangeable Na (g∙kg⁻¹)	Exchangeable Mg (g∙kg⁻¹)	pH
1	0.87	110.50	18.70	122.00	2.02	12.30	0.90	0.12	0.13	6.72
2	1.35	127.00	32.35	285.00	3.88	68.95	2.80	0.13	0.25	6.87
3	1.26	102.50	28.30	203.00	2.81	17.25	2.59	0.08	0.42	6.87
4	1.50	120.00	33.85	243.00	3.38	25.30	6.11	0.08	0.26	6.98
5	1.07	83.50	23.10	265.00	8.13	26.00	5.81	0.32	0.54	7.39
6	1.11	91.50	17.00	329.00	3.85	78.10	4.46	0.20	0.36	6.75
7	2.09	101.00	40.25	490.00	6.60	31.40	8.30	0.09	0.23	7.37
8	1.09	89.00	25.85	476.00	4.61	23.70	8.89	0.12	0.33	7.47
9	1.17	109.50	21.95	293.00	3.23	56.60	7.73	0.10	0.14	7.50
10	0.89	71.00	24.00	743.00	3.30	42.50	8.63	0.23	0.76	7.87
11	0.90	169.50	15.60	215.50	3.23	34.00	9.53	0.09	0.24	7.69
12	2.04	93.00	46.10	481.00	2.95	68.70	8.30	0.15	0.37	6.87
13	1.16	170.00	31.95	199.50	9.73	19.40	8.96	0.27	0.25	7.21
Maximum	2.09	170.00	46.10	743.00	9.73	78.10	9.53	0.32	0.76	7.87
Minimum	0.87	71.00	15.60	122.00	2.02	12.30	0.90	0.08	0.13	6.72
Mean	1.27	110.62	27.62	334.23	4.44	38.78	6.39	0.15	0.33	7.20
SD	0.40	30.22	9.07	169.50	2.29	22.12	2.86	0.08	0.17	0.38
CV(%)	31.24	27.32	32.84	50.71	51.62	57.04	44.85	51.50	51.99	5.27

TN total nitrogen; AN available nitrogen; SOM soil organic matter; AK available potassium; AS available sulfur; AP available phosphate

ISSN: 1601-5223