不同类型富硒土壤的生物有效硒特征

姚凌阳, 谢淑云, 鲍征宇, 马明, 万能

Characteristics of bioavailable selenium in different types of selenium-rich soils

YAO Ling-Yang, XIE Shu-Yun, BAO Zheng-Yu, MA Ming, WAN Neng

表1 紫阳地区土壤理化性质及对应玉米硒含量

Table 1 Soil physical and chemical properties and corresponding corn selenium content in Ziyang area

样品编号	土壤总硒	C	H	N	S	TOC	SiO₂	Al₂O₃	Fe₂O₃	K₂O	Na₂O	CaO	MgO	pH	Eh	玉米硒
1	0.70	1.79	0.606	0.180	0.127	1.656	62.042	14.816	7.758	2.146	0.928	1.456	2.202	5.51	98	0.122
2	0.48	1.02	0.460	0.100	0.113	0.852	66.481	14.698	5.965	2.620	0.775	0.514	1.688	5.94	77	0.140
3	0.37	1.17	0.428	0.110	0.119	1.037	70.545	12.77	5.371	2.352	0.748	0.389	1.334	5.70	89	0.039
4	0.70	1.73	0.638	0.220	0.113	1.505	62.388	14.819	5.623	2.496	0.469	1.716	3.781	8.17	-29	0.281
5	0.75	1.76	0.716	0.340	0.107	1.510	61.497	15.067	5.780	2.549	0.471	1.774	4.260	8.39	-40	0.464
6	0.93	1.90	0.700	0.360	0.083	1.711	59.494	14.898	6.036	2.461	0.524	2.995	4.035	8.26	-34	0.318
7	19.54	3.13	0.482	0.470	0.062	2.978	53.873	13.533	5.263	2.227	0.352	7.427	4.826	8.39	-40	0.493
8	14.90	2.65	0.612	0.590	0.059	2.402	55.429	14.054	6.144	2.277	0.394	5.412	4.146	8.07	-24	16.083
9	12.68	1.39	0.686	0.670	0.054	1.208	60.004	15.193	6.472	2.537	0.482	2.580	2.623	8.31	-36	0.215
10	9.70	1.58	0.585	0.140	0.382	1.263	58.148	14.546	6.195	2.642	0.657	3.818	3.271	8.14	-28	11.490
11	5.64	1.54	0.528	0.170	0.262	1.277	59.893	15.355	5.848	3.269	0.627	2.290	2.901	8.03	-23	6.970
12	4.88	1.68	0.479	0.170	0.248	1.460	60.681	14.76	5.659	3.255	0.708	2.444	2.763	8.53	-47	6.320
13	10.53	1.71	0.518	0.260	0.168	1.458	59.96	13.858	6.188	2.390	0.374	2.957	3.420	8.19	-30	18.420
14	12.60	1.51	0.496	0.240	0.131	1.321	58.851	14.040	6.282	2.412	0.382	3.382	3.400	8.08	-25	16.880
15	11.94	1.67	0.528	0.260	0.141	1.493	58.746	14.486	6.230	2.448	0.374	2.976	3.563	8.28	-35	16.630
16	16.85	1.23	0.461	0.200	0.128	0.933	57.793	14.535	6.977	2.580	0.434	3.319	3.275	8.13	-27	12.030
17	10.48	1.39	0.500	0.240	0.096	1.160	59.148	14.381	6.297	2.481	0.406	3.009	3.305	7.95	-19	11.490