Content and Correlation Analysis of Mineral Elements in Soil- Dictyophora rubra System in Guizhou

doi:10.11924/j.issn.1000-6850.casb2021-0828

Abstract

Abstract:

The study aims to understand the contents of mineral elements in Dictyophora rubra in Zhijin County of Guizhou Province to facilitate D. rubra growth by properly regulating the soil, and to provide a basis for the nutritional and safety evaluation of Dictyophora rubra. Through the determination of mineral elements of potassium (K), calcium (Ca), iron (Fe), zinc (Zn) and selenium (Se) in the soil of D. rubra production base, the correlation analysis was carried out. The results showed that the average content of mineral elements in soil was in the order of Fe > K > Ca > Zn > Se. The average content of mineral elements in Dictyophora rubra was in the order of K > Ca > Fe > Zn > Se, potassium is the most abundant element. The correlation statistics of mineral elements between the base soil and D. rubra showed that the mineral element Fe had a significantly negative correlation with soil pH (P<0.05); there was a very significantly positive correlation between soil Ca and D. rubra Ca and Zn, and soil Se and D. rubra Se (P<0.01); there was a significantly positive correlation between soil K and D. rubra Fe and Zn, and soil Fe and D.rubra Fe (P<0.05). The correlation of mineral elements in the soil showed very significantly positive correlations between K and Fe, K and Se, and Ca and Zn; there was a significantly positive correlation between K and Ca, and Ca and Se at the level of 0.05; there was a very significantly negative correlation between Ca and Fe, and K and Fe. The mineral elements K and Zn, and Ca and Fe in D. rubra had a significantly positive correlation; K and Ca, K and Fe, and Ca and Zn had very significantly positive correlation. Other mineral elements had no significant correlation. Adding a certain concentration of potassium and calcium in the soil could promote the absorption of other mineral elements and improve the quality of D. rubra to a certain extent.

Key words: Dictyophora rubra in Guizhou, mineral elements, correlation analysis, enrichment coefficient, soil in the base

CLC Number:

S646

WANG Demei, LIU Guihua, FAN Chengwu, CHAI Guanqun, LUO Muxinjian, QIN Song. Content and Correlation Analysis of Mineral Elements in Soil- Dictyophora rubra System in Guizhou[J]. Chinese Agricultural Science Bulletin, 2022, 38(14): 72-76.

Figures/Tables 4

References 21

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元素	K	Ca	Fe	Zn	Se
最大值/(mg/kg)	34202	40686	1611670	285.85	1.920
最小值/(mg/kg)	3500	641.2	57653	76.40	0.550
平均值/(mg/kg)	12870	7628	105261	146.0	1.000
标准偏差/(mg/kg)	7359	9018	29227	50.55	0.375
中位值/(mg/kg)	11221	4401	100838	135.4	0.873
偏度	1.091	2.483	0.191	1.083	0.877
峰度	1.282	7.095	-0.627	1.138	-0.060
变异系数%	57.2	118.2	27.8	34.6	37.5
最大值/(mg/kg)	51475	3311	2059	66.70	2.110
最小值/(mg/kg)	7877	82.80	49.15	25.20	0.490
平均值/(mg/kg)	25519	614.3	573.6	39.57	1.043
标准偏差/(mg/kg)	11232	684.9	568.5	8.136	0.404
中位值/(mg/kg)	23069	384.0	278.4	38.52	0.933
偏度	0.913	2.638	1.072	1.310	1.055
峰度	0.257	9.190	0.185	3.880	0.736
变异系数%	44.0	111.5	99.1	20.6	38.7

元素	K	Ca	Fe	Zn	Se
最大值/(mg/kg)	34202	40686	1611670	285.85	1.920
最小值/(mg/kg)	3500	641.2	57653	76.40	0.550
平均值/(mg/kg)	12870	7628	105261	146.0	1.000
标准偏差/(mg/kg)	7359	9018	29227	50.55	0.375
中位值/(mg/kg)	11221	4401	100838	135.4	0.873
偏度	1.091	2.483	0.191	1.083	0.877
峰度	1.282	7.095	-0.627	1.138	-0.060
变异系数%	57.2	118.2	27.8	34.6	37.5
最大值/(mg/kg)	51475	3311	2059	66.70	2.110
最小值/(mg/kg)	7877	82.80	49.15	25.20	0.490
平均值/(mg/kg)	25519	614.3	573.6	39.57	1.043
标准偏差/(mg/kg)	11232	684.9	568.5	8.136	0.404
中位值/(mg/kg)	23069	384.0	278.4	38.52	0.933
偏度	0.913	2.638	1.072	1.310	1.055
峰度	0.257	9.190	0.185	3.880	0.736
变异系数%	44.0	111.5	99.1	20.6	38.7

元素	钾	钙	铁	锌	硒
最大值	11.772	1.468	0.018	0.497	2.069
最小值	0.479	0.009	0.001	0.117	0.598
平均值	2.968	0.288	0.005	0.296	1.088
标准偏差	2.623	0.431	0.005	0.098	0.347
中位值	2.228	0.058	0.003	0.287	1.031
偏度	1.769	1.732	0.946	0.490	1.105
峰都	3.822	-0.102	-0.106	-0.322	1.238
变异系数	0.884	1.500	0.928	0.331	0.319

元素	钾	钙	铁	锌	硒
最大值	11.772	1.468	0.018	0.497	2.069
最小值	0.479	0.009	0.001	0.117	0.598
平均值	2.968	0.288	0.005	0.296	1.088
标准偏差	2.623	0.431	0.005	0.098	0.347
中位值	2.228	0.058	0.003	0.287	1.031
偏度	1.769	1.732	0.946	0.490	1.105
峰都	3.822	-0.102	-0.106	-0.322	1.238
变异系数	0.884	1.500	0.928	0.331	0.319

类别	元素	相关系数
类别	元素	K	Ca	Fe	Zn	Se
红托竹荪	K	1
	Ca	0.786^**	1
	Fe	0.728^**	0.451^*	1
	Zn	0.49^*	0.681^**	0.147	1
	Se	0.272	0.220	0.006	0.370	1
土壤	K	1
	Ca	0.492^*	1
	Fe	-0.553^**	-0.518^**	1
	Zn	0.224	0.648^**	-0.327	1
	Se	0.506^**	0.479^*	-0.307	0.183	1