氨基酸肥料对水稻Cd含量及农产品品质的影响  

Effects of Amino Acid Fertilizer on Rice Cd Content and Quality of Agricultural Products

作　　者：倪才英[1] 刘星星 梁以豪 黎衍亮 肖罗长 刘鑫 简敏菲[2] 丁蕾 NI Caiying;LIU Xingxing;LIANG Yihao;LI Yanliang;XIAO Luochang;LIU Xin;JIAN Minfei;DING Lei(School of Geography and Environment,Jiangxi Normal University,Nanchang 330022,China;College of Life Sciences,Jiangxi Normal University,Nanchang 330022,China;Jiangxi Agricultural Technology Extension Center,Nanchang 330046,China)

机构地区：[1]江西师范大学地理与环境学院,江西南昌330022 [2]江西师范大学生命科学学院,江西南昌330022 [3]江西省农业技术推广中心,江西南昌330046

出　　处：《江西农业大学学报》2023年第4期819-829,共11页Acta Agriculturae Universitatis Jiangxiensis

基　　金：国家自然科学基金项目(42167006);江西省现代农业产业技术体系建设专项(JXARS-12-质量安全与环境控制)。

摘　　要：【目的】探究稻鳖共作模式下不同氨基酸肥料对水稻Cd吸收累积和农产品品质的影响。【方法】选择鹰潭市余江区稻鳖共作田块进行大田试验,设计氨基酸水溶肥①(AAO)、氨基酸水溶肥②(AAT)、氨基酸叶面肥(半胱氨酸(Cys))、钙镁磷肥(GMP)(常规肥料做比较用)及钙镁磷肥与氨基酸水溶肥复配(GA)和不添加肥料(CK)的6个处理,研究Cd在各处理水稻植株中的富集和转运情况以及对稻米Cd、蛋白质、氨基酸含量和甲鱼肌肉Cd含量的影响。【结果】水稻植株Cd含量由高到低依次为根、茎、叶、糙米。与CK相比,对水稻根茎叶Cd含量降低效果最好的是AAT处理,分别降低了40.50%、65.74%和58.10%;Cys处理显著降低了水稻糙米Cd含量,降幅为32.98%。糙米和甲鱼肌肉Cd含量均未超过国家标准限值。与CK相比,施用氨基酸类肥料均降低了糙米蛋白质和16种氨基酸总量,其中Cys处理的降低效果最显著,分别降低了29.37%和35.71%。根据通径分析,土壤-糙米富集系数对糙米Cd含量的富集起直接作用,而酸提取态Cd、可氧化态Cd、茎-叶片转运系数则是通过影响土壤-糙米富集系数来间接影响糙米对Cd的积累。【结论】氨基酸水溶肥能较好地降低水稻根茎叶Cd含量,氨基酸叶面肥(半胱氨酸)降低糙米中Cd含量效果最好,且两者均降低了糙米蛋白质和16种氨基酸总量,改善了稻米食味品质,以叶面喷施半胱氨酸的处理效果最好。[Objective]This study aims to explore the effects of different amino acid fertilizer on rice Cd absorption and accumulation well as agricultural product quality under the rice and turtle co-cropping mode.[Method]Rice and turtle co-cropping rice plots in Yujiang District of Yingtan City were selected for field experiment.Six treatments including amino acid water soluble fertilizer(AAO),amino acid water soluble fertilizer(AAT),amino acid foliar fertilizer(Cysteine(Cys)),calcium magnesium phosphate fertilizer(GMP)combination of calcium magnesium phosphate fertilizer and amino acid water soluble fertilizer(GA)and no fertilizer(CK)were designed.The enrichment and transport of Cd in rice plants and its effect on the contents of Cd and protein and amino acid in rice and the content of Cd in muscle of turtle were analyzed.[Result]The results showed that the Cd content of rice plants was ranking in the order of root>stem>leaf>brown rice.Compared with the CK,the best effect on the reduction of Cd content in the roots,stems and leaves of rice was the AAT treatment,which decreased Cd content by 40.50%,65.74%and 58.10%,respectively.Cysteine foliar control agent(Cys)treatment significantly reduced the Cd content in brown rice by 32.98%.The content of Cd in brown rice and muscle of turtle did not exceed the limit of national standard.Compared with the CK,the application of amino acid fertilizer reduced the protein and 16 amino acids of brown rice,among which the Cys treatment had the most significant reduction effect,the protein and the amino acids were reduced by 29.37%and 35.71%,respectively.According to path analysis,the soil-brown rice enrichment coefficient played a direct role in the enrichment of Cd content in brown rice.However,acid-extracted Cd,oxidizable Cd and stem-leaf transport coefficient indirectly affected the absorption and enrichment of Cd by brown rice by affecting the soilbrown rice enrichment coefficient.[Conclusion]Amino acid water soluble fertilizer 2(AAT)had the best effect on the reduction of Cd content

关 键 词：稻鳖共作 水稻 镉 农产品品质 

分 类 号：S511[农业科学—作物学] S506.2