丹江口柑橘园土壤和叶片营养状况调查分析
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作者单位:

(1.湖北省农业科学院植保土肥研究所,湖北 武汉 430064;2.湖北省丹江口市丁家营镇农业技术推广服务中心,湖北 丹江口 442700;3.湖北省丹江口市柑桔试验站,湖北 丹江口 442700)

作者简介:

刘东海(1984 -),男,河北邯郸人,助理研究员,硕士,主要从事植物营养、土壤肥料方面研究工作。E-mail:liudonghai111@126.com。

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基金项目:国家重点研发计划项目“柑橘化肥农药减施技术集成研究与范”(2017YFD0202000)。


Studies on nutrient contents of citrus orchard soils and leaves in Danjiangkou
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(1.Institute of Plant Protection and SoilFertilizer,Hubei Academy of Agricultural Sciences,Wuhan Hubei 430064;2. Hubei Danjiangkou City Dingjiaying Town Agro -Technology Extension and Service Center,Danjiangkou Hubei442700;3.Danjiangkou Citrus TestStation,Danjiangkou Hubei442700)

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    摘要:

    在丹江口柑橘主产区 42个柑橘园采集了土壤和叶片样品并进行养分测定,旨在研究土壤和叶片营养元素状况及相关性。结果表明,1)97.6%的柑橘园土壤 pH值适宜柑橘生长;土壤有机质、碱解氮、有效磷、速效钾、有效硼、交换性镁、有效铁、有效铜、有效锌、交换性钙和有效锰处于缺乏或低量水平的柑橘园分别占71.4%、95.2%、64.3%、45.2%、100.0%、11.9%、16.7%、26.2%、14.3%、0.0%和0.0%。2)叶片氮、磷、钾、钙、镁、铜、锌、硼、铁和锰含量缺乏的柑橘园分别占31.0%、71.4%、81.0%、38.1%、83.3%、97.6%、95.2%、40.5%、0.0%和 0.0%。3)土壤交换性钙、交换性镁、有效铁、有效锰和有效硼的丰缺状况与叶片中对应元素显著正相关,其它土壤营养元素与叶片相应元素无显著相关性。因此,建议柑橘园在营养管理上应因地制宜,增施有机肥及硼肥,合理施用氮、磷和钾肥。

    Abstract:

    Both soil and leaf samples were collected from 42 citrus orchards in Danjiangkou,and then analyzed for their nutrient contents. The specific objectives were to study on the status and correlation of nutrients in soil and leaves. The results showedthat:1)The pH values of 97.6% samples were suitable. The deficiency rates of organicmatter,alkalinenitrogen,availablephosphorus,availablepotassium,availableboron,exchangeablemagnesium,availableiron,availablecopper,available zinc,exchangeable calcium and available manganese were71.4%,95.2%,64.3%,45.2%,100.0%,11.9%,16.7%,26.2%,14.3%,0.0% and0.0%,respectively.2)The deficiency rates of nitrogen,phosphorus,potassium,calcium,magnesium,copper,zinc,boron,iron and manganese in leaves were31.0%,71.4%,81.0%,38.1%,83.3%,97.6%,95.2%,40.5%,0.0% and0.0%,respectively.3)The contents of soil available nutrients such asexchangeable calcium,exchangeablemagnesium,availableiron,available manganese and available boron in orchard soilswere positively correlated with the contents of corresponding nutrients elements in leaves.However,there was no signi ficantcorrelation between contents ofnitrogen,phosphorus,potassium,copper and zinc in soil and leaves. Therefore,it is suggested that the management of citrus orchards should be adapted to local conditions. Organic fertilizer and boron fertilizershould be applied to the orangesorchards,andnitrogen,phosphorus and potassium fertilizers should be applied rationally.

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刘东海,郑守会,陈云峰,乔艳,张智,郭元成,江龙堤,李双来,李菲,胡诚.丹江口柑橘园土壤和叶片营养状况调查分析[J].中国土壤与肥料,2020,(4):95-100.

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  • 收稿日期:2019-07-12
  • 最后修改日期:
  • 录用日期:2019-09-17
  • 在线发布日期: 2020-09-14