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当前位置: 首页 > 文章 > 天然植物营养素对水稻生长发育及降镉效应研究 湖南农业科学 2017 (5) 36-38
Position: Home > Articles > Effects of Natural Plant Nutrients on Growth and Cadmium Reduction in Rice Hunan Agricultural Sciences 2017 (5) 36-38

天然植物营养素对水稻生长发育及降镉效应研究

作  者：
向艳艳;黄运湘;刘利杉;龙泉
单  位：
湖南农业大学资源环境学院
关键词：
植物营养素;叶面喷施;水稻;生长发育;稻米品质;降镉效应
摘  要：
为探明天然植物营养素(水溶有机肥料)对水稻生长发育、稻米品质和降镉效应的影响,通过镉超标土壤盆栽试验开展研究。结果表明:喷施天然植物营养素对水稻株高及分蘖有一定的促进作用,提高水稻对氮、钾的吸收和稻谷产量,稻草氮、钾含量分别较对照提高2.2%~5.4%和15.4%~26.4%,稻谷产量提高5.7%;显著提高稻米粗蛋白和赖氨酸含量,粗蛋白含量提高6.1%~10.9%,赖氨酸含量提高50.0%~63.6%;增加稻根镉含量,阻止镉向地上部转移,茎叶镉含量较对照降低3.7%~9.6%;稻米镉含量0.07 mg/kg,低于国家食品卫生标准(<0.2 mg/kg)。叶面喷施浓度以1∶900倍稀释液为宜。
译  名：
Effects of Natural Plant Nutrients on Growth and Cadmium Reduction in Rice
作  者：
XIANG Yan-yan;HUANG Yun-xiang;LIU Li-shan;LONG Quan;College of Resources and Environment, Hunan Agricultural University;
关键词：
plant nutrients;;foliar application;;rice;;growth and development;;quality of rice grain;;Cd reduction
摘  要：
A pot experiment using cadmium contaminated soil was conducted to study the effects of natural plant nutrients(water-soluble organic fertilizer) on growth of rice and the quality of rice grain and the reduction of cadmium(Cd) in rice. The results showed that foliar application natural plant nutrients showed a positive effects on height and tillers in rice grain, but the absorption of nitrogen and potassium in straw were increased by 2.2%-5.4% and 15.4%-26.4%, respectively, the yield of rice grain increased by 5.7%, and crude protein and lysine in rice grain significantly increased by 6.1%-10.9% and 50.0%-63.6%, respectively. The Cd concentration in rice root increased which prevented the transportation of Cd from root to overground part in rice. The Cd concentration in straw decreased by 3.7%-9.6%, and the Cd concentration of rice grain was 0.07 mg/kg, which was lower than the national food and healthy standard(<0.2 mg/kg). The concentration of foliar application 1 ∶ 900 times diluted natural plant nutrients is the most appropriate.

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