马小川;卢晓鹏;张子木;熊江;潘斌;刘恋;李泽航;唐超兰;谢深喜;

• 1:湖南农业大学园艺园林学院
• 2:国家柑橘改良中心长沙分中心

摘要(Abstract)：

【目的】探究湖南省不同纬度的温州蜜柑园土壤养分含量、叶片营养及果实营养与品质状况,为果园土壤科学管理提供理论依据。【方法】2011—2016年,连续6 a(年)对湖南省3个地区147个温州蜜柑园的土壤养分含量、叶片营养和果实营养与品质进行测定,运用相关性分析的方法,探索土壤养分、叶片养分与果实品质3者之间的关系,指出不同纬度的温州蜜柑园土壤养分存在的问题。【结果】湘北、湘中、湘南3个地区的供试果园土壤p H适宜比例仅为8.3%~19.0%;3个地区有机质含量总体适宜,多数果园土壤有效铁、锰、铜、锌、钙、钼、镁含量适宜或过量,碱解氮、速效磷、速效钾含量偏低,土壤有效硼含量严重缺乏。湖南省不同纬度温州蜜柑园叶片磷、硼略微缺乏,氮、钾、锌不足,钙、镁、钼严重缺乏,铁、锰过量。3个地区的温州蜜柑果实钾含量与纬度的回归方程为y=-0.024x+1.231,纬度与其他果实品质则无明显差异。纬度对土壤、叶片营养和果实品质有一定的影响,其中土壤速效钾、速效锰含量从北到南依次递减;叶片铁、镁含量从北向南逐渐降低,而钾、锰、硼、钼含量由北向南逐渐升高;果实中钾含量与可溶性固形物含量由北往南依次增加。运用相关分析发现,影响果实品质的主要土壤因素为有机质、速效锌、有效钙、有效镁、有效硼。【结论】改善各地区土壤p H,增加土壤有机质、碱解氮、速效磷、速效钾、有效硼含量是湖南温州蜜柑果园今后土壤管理的重点。

关键词(KeyWords)： 温州蜜柑;纬度;土壤养分:叶片营养;果实品质;湖南省

Abstract:

Keywords:

基金项目(Foundation): 现代农业(柑橘)产业技术体系专项基金(CARS-27)

作者(Author): 马小川;卢晓鹏;张子木;熊江;潘斌;刘恋;李泽航;唐超兰;谢深喜;

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