| 湖南柑橘土壤中微量养分特征及施肥对策 |
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| 引用本文： | 黄 兰,周卫军,崔浩杰,周奕廷,曹 胜,刘 双.湖南柑橘土壤中微量养分特征及施肥对策[J].土壤,2020,52(2):287-293. |
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| 作者姓名： | 黄 兰 周卫军 崔浩杰 周奕廷 曹 胜 刘 双 |
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| 作者单位： | 湖南农业大学,湖南农业大学 |
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| 基金项目： | 国家农业部柑橘产业体系（2017-2020） |
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| 摘 要： | 为了弄清湖南省柑橘园土壤中、微量养分的丰缺及其分布特征,并合理调控柑橘园土壤中、微量养分,采集了湖南省柑橘园主产区14个县共84个土壤样品,检测了土壤中、微量元素的含量状况。结果表明:湖南省柑橘园土壤有86.8%样点呈酸性或强酸性;56.1%样点有机质含量偏低;交换性钙、交换性镁含量较适宜柑橘生长,但分布不均衡,其中湘南56%的样点钙含量不足,湘西南53.6%样点钙含量不足和64.3%样点镁含量不足;有效硫、铁、锰含量均偏高,偏高的比例分别为80.8%、86.9%,64.3%;有效铜含量丰富,但分布不均衡,其中湘南和湘西南分别有76.9%和78.6%样点含量偏高;76.2%样点有效锌含量适宜;85.5%样点有效硼处于缺乏状态;有效钼仅湘南有53.9%地区含量丰富,湘西北、湘西南地区含量适宜。相关性分析表明,柑橘园土壤pH与交换性钙、交换性镁及有效硫,有机质与有效硼、有效锌,以及其余养分间存在一定的相关性。因此,湖南省柑橘园土壤中、微量养分分布不均衡,3个主产区均存在制约柑橘生长发育的问题,据此建议调剂土壤pH,加大有机肥的施用,同时根际施用与叶面喷施相结合,适当补充硼、锌肥。
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| 关 键 词： | 湖南省柑橘土壤 中微量养分 分布特征 相关性 施用对策 |
| 收稿时间： | 2019/3/23 0:00:00 |
| 修稿时间： | 2019/6/2 0:00:00 |
Distribution Characteristics of Soil Medium and Micro Nutrients in Citrus Orchards in Hunan and Suitable Fertilization Strategies |
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| HUANG Lan,ZHOU Weijun,CUI Haojie,ZHOU Yiting,CAO Sheng,LIU Shuang.Distribution Characteristics of Soil Medium and Micro Nutrients in Citrus Orchards in Hunan and Suitable Fertilization Strategies[J].Soils,2020,52(2):287-293. |
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| Authors: | HUANG Lan ZHOU Weijun CUI Haojie ZHOU Yiting CAO Sheng LIU Shuang |
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| Institution: | Hunan Agricultural University,Hunan Agricultural University |
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| Abstract: | Abstract :In order to clarify the abundance and distribution characteristics of medium and micronutrients in the soil of citrus orchards in Hunan Province, and to rationally regulate the medium and micronutrient nutrients in the soil of citrus orchards. A total of 84 soil samples from 14 counties in the main producing areas of citrus orchards in Hunan Province were collected, and the content of trace elements in the soil was detected. The results showed that the soil organic matter in the citrus orchards in Hunan Province was generally lacking; most of them were acidic; the exchangeable calcium and exchangeable magnesium content were more suitable for citrus growth, but the distribution was not balanced; the effective sulfur and iron were generally in excess; the effective manganese was high. The amount of available copper is in an excessive state, but the distribution is not balanced; the effective zinc content is suitable; the effective boron is generally in a state of deficiency; the effective molybdenum content is only high in the south of Hunan, and the content is suitable in northwestern Hunan and southwestern Hunan. Correlation analysis showed that there was a certain correlation between soil pH and exchangeable calcium, exchangeable magnesium and available sulfur, organic matter and available boron, available zinc, and other nutrients. Through the analysis and analysis, it reflects that the distribution of micro-nutrients in the soil of citrus orchards in Hunan Province is not balanced, and there are certain problems in all three regions. Based on the analysis of experimental results, the recommended countermeasures for the citrus gardens in Hunan Province are proposed. |
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| Keywords: | citrus soil in Hunan Province medium and micro nutrient distribution characteristics correlation application strategy |
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