Effects of foliar silicon and zinc fertilizers on cadmium accumulation and nutritional quality of celery

doi:10.3969/j.issn.1004-1524.20240117

Acta Agriculturae Zhejiangensis ›› 2025, Vol. 37 ›› Issue (1): 61-66.DOI: 10.3969/j.issn.1004-1524.20240117

• Horticultural Science • Previous Articles Next Articles

Effects of foliar silicon and zinc fertilizers on cadmium accumulation and nutritional quality of celery

WANG Yun¹(), YU Chao², SHEN Hong¹, CAO Mina¹, ZHOU Qiyao³, HU Zhipeng³, JIN Chongwei³, FENG Ying³^,^*()

1. Planting Technology Extension Center of Dongyang (Plant Protection and Inspection Station of Dongyang City), Dongyang 322100, Zhejiang, China
2. Livestock Industrial Development Center of Shengzhou, Shengzhou 312400, Zhejiang, China
3. Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310058, China

Received:2024-01-31 Online:2025-01-25 Published:2025-02-14

Abstract

Abstract:

Foliar spraying of trace element fertilizers such as silicon (Si) and zinc (Zn) is an important technical approach to inhibit the absorption and accumulation of heavy metals in crops. However, the effects of foliar Si or Zn fertilizers on stem and leaf vegetables are still unclear. Therefore, in this study, by using a cadmium (Cd) low accumulation variety of celery as the test material, a plot experiment was conducted to compare the effects of foliar spraying of ZnSO₄ (Zn), nano silicon fertilizer (Nano-Si), and compound fertilizer of silicon and zinc (Si-Zn) on Cd accumulation and nutritional quality of the edible parts of celery. The results showed that foliar spraying of Si or Zn had no significant effects on plant growth, but it could significantly (P<0.05) reduce the Cd concentration in aboveground parts and the translocation factor of Cd from root to shoot, increase the concentration of soluble protein, soluble sugar, and vitamin C in the editble parts. Among the three foliar fertilizers, Nano-Si had the best effects. These results indicated that foliar spraying of Nano-Si is an effective strategy to ensure the safe production and improve the quality of celery in Cd polluted greenhouse.

Key words: stem and leaf vegetable, soil heavy metal pollution, nano fertilizer, food safety

CLC Number:

WANG Yun, YU Chao, SHEN Hong, CAO Mina, ZHOU Qiyao, HU Zhipeng, JIN Chongwei, FENG Ying. Effects of foliar silicon and zinc fertilizers on cadmium accumulation and nutritional quality of celery[J]. Acta Agriculturae Zhejiangensis, 2025, 37(1): 61-66.

Figures/Tables 4

References 27

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处理 Treatment	地上部干重 Dry weight of aboveground parts/g	叶绿素含量 Chlorophyll content/(mg·g^-1)	土壤pH值 Soil pH vlue	土壤Cd含量 Soil Cd content/(mg·kg^-1)
CK	0.82±0.06	1.55±0.13	5.58±0.04	0.78±0.03
Zn	0.81±0.04	1.62±0.08	5.55±0.04	0.74±0.02
Nano-Si	0.82±0.01	1.69±0.12	5.56±0.05	0.71±0.03
Zn-Si	0.81±0.02	1.57±0.03	5.53±0.07	0.73±0.02

处理 Treatment	地上部干重 Dry weight of aboveground parts/g	叶绿素含量 Chlorophyll content/(mg·g^-1)	土壤pH值 Soil pH vlue	土壤Cd含量 Soil Cd content/(mg·kg^-1)
CK	0.82±0.06	1.55±0.13	5.58±0.04	0.78±0.03
Zn	0.81±0.04	1.62±0.08	5.55±0.04	0.74±0.02
Nano-Si	0.82±0.01	1.69±0.12	5.56±0.05	0.71±0.03
Zn-Si	0.81±0.02	1.57±0.03	5.53±0.07	0.73±0.02

处理 Treatment	可溶性蛋白含量 Soluble protein content/(mg·kg^-1)	可溶性糖含量 Soluble sugar content/%	纤维素含量 Cellulose content/%	维生素C含量 Vitamin C content/(mg·kg^-1)
CK	494±12.b	3.48±0.04 b	1.48±0.02 a	0.54±0.01 b
Zn	513±13 ab	3.63±0.02 a	1.49±0.02 a	0.55±0.01 b
Nano-Si	536±7 a	3.68±0.04 a	1.44±0.01 a	0.60±0.01 a
Zn-Si	510±6 ab	3.60±0.04 ab	1.48±0.01 a	0.57±0.01 ab

处理 Treatment	可溶性蛋白含量 Soluble protein content/(mg·kg^-1)	可溶性糖含量 Soluble sugar content/%	纤维素含量 Cellulose content/%	维生素C含量 Vitamin C content/(mg·kg^-1)
CK	494±12.b	3.48±0.04 b	1.48±0.02 a	0.54±0.01 b
Zn	513±13 ab	3.63±0.02 a	1.49±0.02 a	0.55±0.01 b
Nano-Si	536±7 a	3.68±0.04 a	1.44±0.01 a	0.60±0.01 a
Zn-Si	510±6 ab	3.60±0.04 ab	1.48±0.01 a	0.57±0.01 ab

Effects of foliar silicon and zinc fertilizers on cadmium accumulation and nutritional quality of celery

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