液体肥料添加植物生长调节剂对甜玉米养分吸收及肥料利用率的影响  

Effects of Liquid Fertilizers with Plant Growth Regulators on Nutrient Absorption and Fertilizer Using Efficiency of Sweet Corn

作　　者：龚林 李志滨 曾娥 程凤娴[2] 邓兰生[2] 张承林[2] 胡克纬 涂攀峰 GONG Lin;LI Zhibin;ZENG E;CHENG Fengxian;DENG Lansheng;ZHANG Chenglin;HU Kewei;TU Panfeng(Dongguan Yixiang Liquid Fertilizer Co.,Ltd,Guangdong Liquid Fertilizer Engineering Technology Research Center,Dongguan 523135,China;College of Natural Resources and Environment,South China Agricultural University,Guangzhou 510642,China;Guangdong General Station for Farmland and Fertilizer,Guangzhou 510500,China;Department of Horticulture,Zhongkai University of Agriculture and Engineering,Guangzhou 510225,China)

机构地区：[1]东莞一翔液体肥料有限公司/广东省液体肥料工程技术研究中心,广东东莞523135 [2]华南农业大学资源环境学院,广东广州510642 [3]广东省耕地肥料总站,广东广州510500 [4]仲恺农业工程学院园艺园林学院,广东广州510225

出　　处：《广东农业科学》2019年第11期54-61,共8页Guangdong Agricultural Sciences

基　　金：东莞市引进创新创业领军人才计划项目;国家重点研发计划项目(2016YFD0200404)

摘　　要：【目的】研究液体肥料中合理复配植物生长调节剂在甜玉米上的应用效果,为研发多功能液体肥料提供数据支撑。【方法】以甜玉米为试验材料,在大田滴灌条件下,研究植物生长调节剂芸苔素内酯(BR)、胺鲜酯(DA-6)、生化黄腐酸(BFA)与液体肥复配对甜玉米不同生长时期干物质累积、养分吸收及不同植物生长调节剂对液体肥料利用率的影响。【结果】3种植物生长调节剂对甜玉米生育进程没有影响。液体肥料与合适浓度的植物生长调节剂复配能显著提高甜玉米茎叶部干物质累积量,其中复配9.45%BFA+1000 mg/kg DA-6在拔节期与收获期干物质累积量比单施液体肥分别高58.8%及95.3%。拔节期10 mg/kg BR处理茎叶氮含量最高,4000 mg/kg DA-6处理磷钾含量最高;抽雄期茎叶氮磷钾含量最高分别为4000 mg/kg DA-6处理、不施肥对照与4%BFA处理;收获期茎叶2%BFA处理氮钾含量最高,CK含磷量最高。植物生长调节剂对肥料利用效率均有不同程度的促进作用,其中4000 mg/kg DA-6处理可提高氮、磷、钾肥利用效率83.4%、105.4%与81.3%。液体肥料与植物生长调节剂复配均能促进甜玉米鲜苞的增产效果,其中BFA处理表现最为明显,当BFA施用浓度为200 mg/kg时增产14.36%,在所有处理中表现最佳。【结论】植物生长调节剂BR、DA-6及BFA复配到液体肥料中,对甜玉米的生长有促进作用,不断优化液体肥料中植物生长调节剂的配比在现代农业生产中具有良好的应用前景。【Objective】The objective was to study the application effect of rational compounding of plant regulator in liquid fertilizer on sweet corn,and provide data support for the development of multifunctional liquid fertilizer.【Methods】In this experiment,sweet corn was used as the test material.The complex formulation of plant regulators such as brassinolide(BR),amine fresh ester(DA-6),biochemical fulvic acid(BFA)and liquid fertilizer were conducted under the condition of drip irrigation in the field.The effects of fertilizer complex on dry matter accumulation and nutrient absorption,and different plant regulators on the nutrition using efficiency of liquid fertilizer in different growth stages of sweet corn were compared.【Results】Three plant regulators had no effect on the growth process of sweet corn.The combination of liquid fertilizer and suitable concentration of plant regulators could significantly increase the dry matter accumulation of stem and leaf of sweet corn.The cumulative amount of 9.45%BFA+1000 mg/kg DA-6 in the jointing and harvesting stages were increased by 58.8%and 95.3%compared to the single application of liquid fertilizer.At the jointing stage,the nitrogen contents of stems and leaves were the highest under the treatment with 10 mg/kg BR,and the highest contents of phosphorus and potassium were obtained under the treatment with 4000 mg/kg DA-6.At tasseling stage,the highest levels of nitrogen,phosphorus and potassium in stems and leaves were obtained under 4000 mg/kg DA-6 treatment,no fertilizer treatment(control)and 4%BFA treatment,respectively.The stems and leaves had the highest nitrogen and potassium contents under 2%BFA treatment during harvest stage,and CK treatment had the highest phosphorus content.Plant regulators could promote the utilization efficiency of fertilizers.The treatment of 4000 mg/kg DA-6 could increase the utilization efficiency of nitrogen,phosphorus and potassium fertilizers by 83.4%,105.4%and 81.3%.The combination of liquid fertilizer and plant regulator could

关 键 词：植物生长调节剂 芸苔素内酯 胺鲜酯 生化黄腐酸 液体肥料 养分利用 

分 类 号：S145.2[农业科学—肥料学]