夷陵区柑橘园土壤和叶片养分状况研究
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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.湖北省宜昌市夷陵区农业技术推广中心,湖北宜昌443100)

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、土壤肥料方面的研究工作。E-mail:liudonghai111@126.com。

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基金项目:

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示范”(2017YFD0202000)。


Study on nutrient status of citrus orchard soils and leaves in Yiling
Author:
Affiliation:

(1.Institute of Plant Protection and SoilFertilizer,Hubei Academy of AgriculturalSciences,Wuhan Hubei430064;2.Agricultural Technology Extension Center of YilingDistrict,Yichang City of HubeiProvince,Yichang Hubei443100)

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    摘要:

    为研究夷陵区柑橘园土壤和叶片营养元素状况及相关性,在柑橘主产区采集了 41个土壤和叶片样品进行养分测定分析。结果表明,1)柑橘园土壤 pH均值 5.5,偏酸性柑橘园占 22%。有机质、碱解氮、速效钾和有效硼处于低量缺乏的比例分别为 33.1%、68.3%、36.6%和 100%,其他土壤养分含量均适宜偏高水平。2)叶片中氮、钾、钙、镁和锌含量缺乏的柑橘园分别占34.1%、87.8%、36.6%、65.9%和95.1%。叶片磷、铁、锰、铜和硼含量在适宜偏高水平。3)土壤碱解氮、交换性钙、交换性镁、有效铁和有效硼的含量与叶片中对应元素存在显著正相关;土壤有效钾和有效铜与叶片对应元素显著负相关;土壤交换性钙与土壤 pH极显著正相关;土壤有机质与土壤碱解氮、交换性镁以及叶片镁极显著正相关。因此建议夷陵区柑橘园应有机无机肥配施,增施硼、锌和镁肥,同时可施用适量石灰改良酸性土壤。

    Abstract:

    Both soil and leaf samples were collected from 41 citrus orchards inYiling,and then analyzed for their nutrientelement contents to study the status and correlation of nutrient elements in soils and leaves. The results showed that,1)The average soil pH values of citrus orchards was5.5,and acidic soil citrus orchards accounted for 22.0%. The deficiencyrates of organic matter,alkaline nitrogen,available potassium and available boron were33.1%,68.3%,36.6% and100.0%.The contents of other elements in soil were at suitable or higherlevel.2)The deficiency rates ofnitrogen,potassium,calcium,magnesium and zinc in leaves were34.1%,87.8%,36.6%,65.9% and95.1%. The contents of phosphorus,iron,manganese,copper and boron in leaves were at suitable or higher level.3)The contents of available soil nutrientelements such as alkaline nitrogen,exchangeable calcium,exchangeable magnesium,available iron and availableboron in citrus orchard soils were positively correlated with the contents of corresponding nutrients elements in leaves. The contents of available potassium and available copper in citrus orchard soils were negatively correlated with the contentsof corresponding nutrients elements inleaves. Exchangeable calcium was positively correlated with soilpH. Soil organicmatter was positively correlated with alkalinenitrogen,exchangeable magnesium and magnesium inleaves. It is suggestedthat inorganic fertilizer and organic fertilizer should be reasonablyapplied,boron,zinc and magnesium fertilizer should beincreased,meanwhile,lime should be applied to improve acidsoil.

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刘东海,乔艳,谢和平,陈云峰,张智,钟家成,李双来,胡诚.夷陵区柑橘园土壤和叶片养分状况研究[J].中国土壤与肥料,2020,(5):237-242.

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  • 收稿日期:2019-08-12
  • 最后修改日期:
  • 录用日期:2019-11-09
  • 在线发布日期: 2020-11-06