文章摘要
潘胜强,李 彬,邓 玉,巫 剑,罗 薇,彭四清,杨国义.南雄市坪田镇银杏果园高效施肥对策分析[J].广东农业科学,2019,46(3):71-77
南雄市坪田镇银杏果园高效施肥对策分析
Analysis on High Efficiency Fertilization Strategy of Ginkgo biloba Orchard in Pingtian Town , Nanxiong City
  
DOI:10.16768/j.issn.1004-874X.2019.03.012
中文关键词: 银杏果园  肥力综合指数    微量元素  施肥对策
英文关键词: ginkgo orchard  integrated fertility index  boron  trace elements  fertilization strategy
基金项目:广东省科技计划项目(2014A020208078);中山市科技计划项目(2018B1014)
作者单位
潘胜强,李 彬,邓 玉,巫 剑,罗 薇,彭四清,杨国义 广东省生态环境技术研究所 / 广东省农业环境综合治理重点实验室广东 广州 510650 
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中文摘要:
      【目的】提出南雄市坪田镇银杏果园高效施肥对策。【方法】结合银杏果园土壤肥力实地调查与 银杏不同物候期的肥力需求特征进行分析。【结果】果园土壤属于酸性紫色土,土壤肥力综合指数平均值为 1.09, 整体处于一般偏下水平,呈现肥力供应不平衡状况。其中,土壤中有效磷、速效钾、有效铜、有效锰均处于肥 力较高水平,土壤交换性钙、镁含量均处于丰富水平,有机质、水解性氮和阳离子交换量整体处于较低水平, 微量元素硼呈现缺素效应。【结论】建议南雄市坪田镇银杏果园施肥措施按以下方式实施,2 月底施用“农家 肥 + 氮肥 + 微量元素硼肥”作为叶前肥,4 月初施用“氮肥 + 微量元素硼肥”作为催化促种肥,其中微量元素 肥可采取喷施叶面肥方式进行,8 月底施用农家肥为主的基肥作为果后肥。
英文摘要:
      【Objective】The objective was to propose effective fertilization strategies for ginkgo orchards in Pingtian Town, Nanxiong City. 【Method】An analysis was conducted based on the field investigation of soil fertility in ginkgo orchard and the fertility demand characteristics in different phenological periods of Ginkgo biloba. 【Result】 ginkgo orchard soil belongs to acid purple soil, with an average soil integrated fertility index of 1.09, which was generally below the normal level, showing an unbalanced supply of fertility. Among those fertility indexes, available phosphorus, available potassium, available copper and available manganese in soil are at a high level of fertility, exchangeable calcium and magnesium content in soil are at a rich level, while organic matter, hydrolyzed nitrogen and cation exchange capacity are at a relatively lower level, and trace element boron shows a deficiency effect. 【Conclusion】It is suggested that the fertilization measures of ginkgo orchard in Pingtian Town, Nanxiong City should be implemented as follows: applying " farmyard manure + nitrogen fertilizer + trace element boron fertilizer " as pre-foliage fertilizer at the end of February; applying "nitrogen fertilizer + trace element boron fertilizer" as catalytic seed fertilizer at the beginning of April, in which trace element fertilizer can be sprayed by foliar fertilizer; applying base fertilizer(mainly based on farmyard manure) as post-fruit fertilizer at the end of August.
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