海藻酸增效复混肥料在冬小麦上的施用效果
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(土壤资源高效利用国家工程实验室,山东农业大学资源与环境学院,山东 泰安 271018)

作者简介:

李金鑫(1995-),男,山东泰安人,硕士研究生,主要从事增效复混肥料肥效评价与应用技术研究。E-mail:920388711@qq.com。

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基金项目:“十三五”国家重点研发计划项目(2016YFD0200402)。


Effect of alginate compound fertilizer on growth and yield of winter wheat
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(National EngineeringLaboratory for Efficient Utilization of SoilResources,College of ResourcesandEnvironment,Shandong AgriculturalUniversity,Shandong Taian271018)

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    摘要:

    为综合评价海藻酸增效复混肥料在冬小麦上的应用效果,设置田间试验,共 8个处理:CK0(不施肥);CK1(施用磷钾肥不施用氮肥);CK2(施用氮钾肥不施用磷肥);CK3(施用氮磷肥不施用钾肥);CF(常规复混肥料);AF(海藻酸增效复混肥料);CF减量 20%(常规复混肥料减施 20%);AF减量 20%(海藻酸增效复混肥减施 20%)。结果表明:与常规复混肥相比,施海藻酸增效复混肥提高小麦粒重和穗数,显著增产 15.33%,而且肥料减施 20%较全量施肥处理产量差异不显著;促进小麦对养分的吸收,使氮、磷、钾养分吸收量分别增加了15.63%、12.54%和8.13%;0~ 20 cm土层硝态氮含量提高了12.96%,40~ 60 cm土层硝态氮含量降低了13.80%;土壤表层铵态氮、有效磷和速效钾含量分别提高了 11.90%、11.54%和 14.29%;海藻酸增效复混肥的氮、磷、钾肥料利用率分别增加了14.85、9.54和 13.50个百分点,氮、磷、钾农学效率分别提高了3.72、4.65和 11.63 kg·kg -1。综合考虑产量、养分吸收、肥料利用率和环境压力,海藻酸增效复混肥可对常规复混的增效改性。

    Abstract:

    In order to evaluate the application effect of alginate synergistic fertilizer on winterwheat,a field experiment wasset up in 8 treatments:CK0(no fertilization),CK1(application of phosphorusand potassium fertilizer without nitrogenfertilizer),CK2(application of nitrogen and potassium fertilizer without phosphorus fertilizer),CK3(application ofnitrogen phosphate fertilizer without potassiumfertilizer),CF(conventional compoundfertilizer);AF(alginate compoundfertilizer);CF reduction20%(conventional compound fertilizer reduction by20%);AF reduction 20%(alginatecompound fertilizer reduction by20%).The results showed that compared with conventional compoundfertilizer,the applicationof alginate compound fertilizer increased the grain weight and spikenumber,significantly increased the yield by15.33%,and the difference between fertilizer reduction 20% and non-reduction treatment was not significant.The nutrient absorption of nitrogen,phosphorus and potassium increased by15.63%,12.54% and8.13%,respectively.The content of nitrate nitrogen in 0~ 20cm soil layer increased by12.96%,but it decreased by 13.80% in 40~ 60 cm soillayer.The contents of ammoniumnitrogen,available phosphorus and available potassium in soil surface were increa sed by11.90%,11.54% and 14.29% respectively.The utilization rate ofnitrogen,phosphorus and potassium fertilizer in alginate compound fertilizer application treatmentsincreased by14.85,9.54 and 13.50 percentage pointsrespectively.The agronomic efficiency ofnitrogen,phosphorus andpotassium increased by 3.72,4.65 and 11.63 kg·kg -1,respectively.Considering yield,nutrient absorption,fertilizerutilization rateand environmental pressure,alginatecompound fertilizercan efficiently modify theconventionalcompoundfertilizer.

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李金鑫,李絮花,刘敏,刘文博,杨柳,张静,王子凤.海藻酸增效复混肥料在冬小麦上的施用效果[J].中国土壤与肥料,2020,(1):153-159.

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  • 收稿日期:2019-02-26
  • 最后修改日期:
  • 录用日期:2019-05-08
  • 在线发布日期: 2020-03-30
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