浙江农业科学

浙江农业科学 ›› 2024, Vol. 65 ›› Issue (9): 2069-2074.DOI: 10.16178/j.issn.0528-9017.20230135

• 经济作物 • 上一篇    下一篇

土壤调理剂协同有机肥对茶园土壤肥力及茶叶安全生产影响研究

张维玲1,2(), 葛芙蓉2, 徐静高2, 郑旭芊2, 叶正钱3,*()   

  1. 1.慈溪市农业技术推广中心,浙江 宁波 315300
    2.宁波市北仑区农业技术推广中心,浙江 宁波 330200
    3.浙江农林大学 浙江省土壤污染生物修复重点实验室,浙江 杭州 311300
  • 收稿日期:2023-02-14 出版日期:2024-09-11 发布日期:2024-09-11
  • 通讯作者: 叶正钱(1965—),男,浙江杭州人,教授,从事土壤肥力与植物营养研究工作,E-mail:yezhq@zafu.edu.cn。
  • 作者简介:张维玲(1987—),女,浙江宁波人,农艺师,从事土壤肥料技术推广工作,E-mail:362485547@qq.com。
  • 基金资助:
    浙江省“领雁”研发攻关计划项目(2022C02022)

Study on the effect of soil conditioner combined with organic fertilizer on soil fertility and tea safety production in tea garden

ZHANG Weiling1,2(), GE Furong2, XU Jinggao2, ZHENG Xuqian2, YE Zhengqian3,*()   

  1. 1. Agricultural Technology and Extension Center of CiXi City, Ningbo 315300, Zhejiang
    2. Agricultural Technology Extension Center of Beilun District of Ningbo City, Ningbo 330200, Zhejiang
    3. Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A & F University,Hangzhou 311300, Zhejiang
  • Received:2023-02-14 Online:2024-09-11 Published:2024-09-11

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摘要：

施用土壤调理剂是钝化土壤重金属的一项重要技术措施,该研究通过采用牡蛎壳类土壤调理剂与有机肥协同施用的方式来研究对茶园土壤和茶叶中重金属含量的影响。结果表明,TY6处理(土壤调理剂2 250 kg·hm-2+有机肥7 500 kg·hm-2)与CK处理(不施用任何材料)相比土壤pH值提高0.14,土壤有效磷、速效钾、有机质、碱解氮含量分别提高61.78%、32.11%、57.61%和36.48%。土壤铅、铬、砷、汞、有效态铅、有效态镉和有效态铬分别下降52.61%、20.48%、22.39%、70.00%、59.31%、66.67%和50.00%。茶叶百芽重增加25.58%,发芽密度增加32.09%,鲜叶产量增加95.06%,茶叶全氮含量增加4.67%,全磷含量增加6.40%,全钾含量增加3.79%。茶叶中铅、镉、铬、砷和汞分别下降70.59%、50.00%、26.67%、10.71%和17.86%。综上所述,为了提高茶园土壤质量,增加茶叶产量,降低茶叶重金属含量,减轻对身体的健康危害,建议采用土壤调理剂2 250 kg·hm-2+有机肥7 500 kg·hm-2的用量。

关键词: 茶叶产量, 有机肥, 重金属, 土壤肥力

Abstract:

The application of soil conditioner is an important technical measure to passivate heavy metals in soil. In this study, the effects of oyster shell soil conditioner and organic fertilizer on heavy metal content in tea garden soil and tea were studied. The results showed that the soil pH value of TY6 treatment (soil conditioner 2 250 kg·hm-2 + organic fertilizer 7 500 kg·hm-2) increased by 0.14 compared with CK treatment (no material was applied), and the contents of available phosphorus, available potassium, organic matter and alkali-hydrolyzable nitrogen in soil increased by 61.78%, 32.11%, 57.61% and 36.48%, respectively. The lead, chromium, arsenic, mercury, available lead, available cadmium and available chromium contents in soil decreased by 52.61%, 20.48%, 22.39%, 70.00%, 59.31%, 66.67% and 50.00%, respectively. The 100-bud weight of tea increased by 25.58%, the germination density increased by 32.09%, the fresh leaf yield increased by 95.06%, the total nitrogen content of tea increased by 4.67%, the total phosphorus content increased by 6.40%, and the total potassium content increased by 3.79%. Lead, cadmium, chromium, arsenic and mercury contents in tea decreased by 70.59%, 50.00%, 26.67%, 10.71% and 17.86%, respectively. In summary, in order to improve the soil quality of tea garden, increase the yield of tea, reduce the content of heavy metals in tea, and reduce the health hazards to the body, it is recommended to use the amount of soil conditioner 2 250 kg·hm-2 + organic fertilizer 7 500 kg·hm-2.

Key words: tea yield, organic fertilizer, heavy metals, soil fertility

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