‘金钝’土壤调理剂对稻麦轮作体系的镉钝化效果研究  

Study on cadmium passivation effects of“Jindun”soil conditioner on rice-wheat rotation system

作　　者：和君强 熊孜 邓林 戴青云 刘代欢 熊键桓 HE Jun-qiang;XIONG Zi;DENG Lin;DAI Qing-yun;LIU Dai-huan;XIONG Jian-huan(Yonker Environmental Protection Co.,Ltd.,Changsha Hunan 410300;National Engineering Research Center for Soil NutrientManagement and Pollution Remediation,Nanjing Jiangsu 210008;Xiangtan Agricultural Comprehensive ServiceCenter,Xiangtan Hunan 411100)

机构地区：[1]永清环保股份有限公司,湖南长沙410300 [2]土壤养分管理与污染修复国家工程研究中心,江苏南京210008 [3]湘潭市农业综合服务中心,湖南湘潭411100

出　　处：《中国土壤与肥料》2025年第1期178-185,共8页Soil and Fertilizer Sciences in China

基　　金：国家重点研发计划(2018YFC1802700,2018YFC1802702)。

摘　　要：为探究‘金钝’土壤调理剂在长江流域不同气候、土壤条件下对稻麦轮作的镉(Cd)钝化效果,在新沂市、常熟市开展了两年4季连续稻麦轮作的大田试验,研究其对作物产量、籽粒Cd含量、土壤有效Cd含量和pH值的影响。结果表明:(1)与不施用调理剂(对照)处理相比,施用调理剂使两地水稻糙米Cd含量降低48.13%~69.57%,小麦籽粒Cd含量降低26.92%~37.04%,且其中6季差异显著。(2)施加土壤调理剂可使水稻产量提高-4.07%~22.00%,小麦产量提高-0.84%~30.45%。(3)与试验前初始值相比,4季试验后调理剂处理土壤有效Cd含量降低0.116~0.148 mg·kg^(-1)(降幅为31.22%~81.12%),土壤pH提高0.87~1.30,对照处理土壤pH降低0.28~0.80,且差异显著,施加调理剂改善了土壤酸化。(4)相关性分析表明,籽粒Cd含量与土壤有效Cd含量呈显著正相关,与土壤pH值呈显著负相关。综上所述,‘金钝’土壤调理剂施加在稻麦轮作区农用地Cd污染风险管控大田应用效果明显,有利于保障农产品产量和品质安全。In order to investigate the effect of“Jindun”soil conditioner product on the field application of cadmium(Cd)in agricultural land under different climatic and soil production conditions in the Yangtze River Basin,a 2-year 4 planting seasons continuous rice-wheat crop rotation trial was conducted in Xinyi and Changshu cities of Jiangsu Province to study the effects of soil conditioner application on crop seed cadmium content,soil effective Cd content,yield and soil pH.The results showed that:(1)Compared with the control trial,the application of conditioner reduced the Cd content in brown rice by 48.13%-69.57% per season and that in wheat grain by 26.92%-37.04% per season in both locations,and the differences in six planting seasons reached significant levels.(2)Compared with the control trial,the application of soil conditioner increased rice yield by-4.07%-22.00% and wheat yield by-0.84%-30.45% in both locations without reducing the original yield of the crop.(3)Compared with the initial value before the test,soil available Cd was decreased by 0.116-0.148 mg·kg^(-1)(drop by 31.22%-81.12%)and soil pH was increased by 0.87-1.30 units after 2 years of continuous testing.Soil pH of the control trial was reduced by 0.28-0.80 units,the soil conditioner significantly improved soil acidification.(4)Correlation analysis showed that the crop seed Cd content was significantly positively correlated with the available Cd content of the soil,and significantly negatively correlated with soil pH.In conclusion,the“Jindun”soil conditioner products for testing were effective on controlling the risk of Cd pollution on agricultural land in the rice-wheat rotation area,which could help to ensure the safety of agricultural products.

关 键 词：土壤调理剂 镉 稻麦轮作 钝化 大田试验 

分 类 号：S51[农业科学—作物学]