| 龚 林 1
，李志滨 2，曾 娥 3，程凤娴 2，邓兰生 2，张承林 2，胡克纬 1
，涂攀峰 1，4.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[J].广东农业科学,2019,46(11):54-61 |
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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 GrowthRegulators on Nutrient Absorption and FertilizerUsing Efficiency of Sweet Corn |
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| DOI：10.16768/j.issn.1004-874X.2019.11.008 |
| 中文关键词: 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 |
| 英文关键词: plant growth regulator brassinolide amine fresh fat biochemical fulvic acid liquid fertilizer nutrient utilization |
| 基金项目: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） |
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| 中文摘要: |
| 【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 +1 000 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，
4 000 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 4 000 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 4 000 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。 |
| 英文摘要: |
| 【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+1 000 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 4 000 mg/kg DA-
6. At tasseling stage, the highest levels of nitrogen, phosphorus and potassium in stems and leaves were obtained under 4 000 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 4 000 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 promote the yield increase of sweet corn ear. Obviously, the BFA treatment performance was the
best. When the concentration of BFA was 200 mg/kg, the yield increase was 14.36%, which was the best among all treatments.
【Conclusion】The plant regulators such as BR, DA-6 and BFA compounded into liquid fertilizers could promote the growth
of sweet corn. Continuous optimization of the ratios of plant regulators in liquid fertilizers has a good application prospect in
modern agricultural production. |
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