腐植酸液肥在优质稻上的应用效果研究  

Study on Application Effect of Humic Acid Liquid Fertilizer on High-quality Rice

作　　者：刘利成 闵军 李静 刘三雄 蒋承琮 黄英 黄海明 黎用朝 

机构地区：[1]湖南省水稻研究所农业部长江中下游优质籼稻遗传育种重点实验室,湖南长沙410125 [2]郴州市农作物种子贮备和技术推广站,湖南郴州423000 [3]湖南科录普作物品质研究中心有限责任公司,湖南长沙410100

出　　处：《湖南农业科学》2015年第9期30-32,共3页Hunan Agricultural Sciences

基　　金：国家现代农业产业技术体系建设专项资金(nycyt O1);镉低积累农作物品种筛选与选育科研协作攻关项目(湖南省财政专项01);国家科技支撑计划课题粮食丰产工程第三期子课题(2013BAD07B11-01);湖南省农业综合开发科技示范推广项目(2014-06)

摘　　要：以高档优质籼稻农香18、湘晚籼17号、创香5号为材料,在大田条件下研究了纽翠绿腐植酸液肥不同类型及配比对农香18产量、稻米镉含量和硒含量的影响,以及不同浓度纽翠绿腐植酸液肥对湘晚籼17号、创香5号稻米镉含量和硒含量的影响。结果表明,在施肥类型上,农香18在施用富硅土、鸡粪处理下的产量和硒元素含量较高,镉元素含量较低;在不同类型配比上,农香18在7 kg/667m^2富硅土结合5 mL/L的高氮型液肥,再追施5 mL/L高钾型液肥的处理下,产量较高,稻米镉含量较大幅度降低。纽翠绿氮、钾液肥在浓度2.5-5.0 mL/L范围内,可降低湘晚籼17号稻米的镉元素含量,但对创香5号降低镉含量方面的作用较小,在该浓度范围内,创香5号稻米的硒含量相对稳定。Using high-quality Indica rice Nongxiang 18, Xiangwanxian 17, Chuangxiang 5 as materials, the effects of different types and proportions of Nutri Grow humic acid liquid fertilizer on the yield and the contents of cadmium and selenium of Nongxiang 18 were studied under fi eld conditions, as well as the effects of different concentrations of Nutri Grow humic acid liquid fertilizer on the contents of cadmium and selenium of Xiangwanxian 17 and Chuangxiang 5 rice. The results showed that, for the fertilizer types, Nongxiang 18 had a higher yield and selenium content but a lower cadmium content under the treatment of silicon-rich soil and fowl dung; for the ratios of fertilizers, Nongxiang 18 had a higher yield and a more signifi cant reduction in rice cadmium content under the treatment of applying 7 kg/667m^2 silicon-rich soil and 5 mL/L high-nitrogen-type fertilizer, topdressing 5 mL/L high-potassium-type fertilizer. The Nutri Grow nitrogen, potassium fertilizer could reduce the cadmium content of Xiangwanxian 17 within the concentration range of 2.5-5.0 mL/L, but played a lesser role in reducing the cadmium content of Chuangxiang 5. The selenium content of Chuangxiang 5 was relatively stable within the range of the concentration.

关 键 词：优质稻 纽翠绿腐殖酸 产量 镉含量 硒含量 

分 类 号：S143.92[农业科学—肥料学]