| 赖 多,邵雪花,匡石滋,等.粤东地区柑橘园土壤性质调查分析[J].广东农业科学,2019,(11-12):- |
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粤东地区柑橘园土壤性质调查分析 |
| Study on soil nutrient status of citrus orchard in eastern Guangdong province |
| 投稿时间：2019-09-19 修订日期：2019-09-19 |
| DOI： |
| 中文关键词: 土壤pH 有机质 有效养分 柑橘园 粤东地区 |
| 英文关键词: Soil pH soil organic matter available nutrients citrus orchard east Guangdong |
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| 摘要点击次数: 219 |
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| 中文摘要: |
| 【目的】为了摸清粤东地区柑橘园土壤性质现状,为合理施肥提供科学依据。【方法】采集了粤东普宁和饶平市柑橘主产区28个代表性柑橘园0 ~ 30 cm的土壤样品进行pH和养分测定分析。【结果】粤东地区柑橘园土壤pH平均为4.72,偏酸土壤占60.71%；土壤有机质含量适宜,高于15.0 g/kg的占78.57%；碱解氮和交换性钙缺乏的柑橘园分别占53.57%和50.00%,有效镁、硼缺乏比较严重,缺乏和极缺的比例分别达57.14%、21.43%和32.14%、67.86%；而有效磷、钾、铁、铜普遍过高,过量的比例依次为78.57%、78.58%、96.43%和89.29%。【结论】粤东地区柑橘园应适当控制磷、钾肥和含铜杀菌剂的使用,并加强钙、镁、硼肥以及有机肥的施用；土壤偏酸性的柑橘园应用石灰进行土壤调理,同时可减少土壤过量的铁。 |
| 英文摘要: |
| 【Objective】This study is to find out the soil nutrients status and to provide scientific basis of balanced fertilization. 【Method】Top soil (0~30 cm) samples were collected from 28 citrus orchards in eastern Guangdong province, and pH, soil organic matter (SOM) content and available nutrient contents were measured. 【Result】The average value of soil pH was 4.72 and 60.71% samples were suitable. SOM contents of 78.57% samples were in the abundant level. The deficiency ratios of alkaline nitrogen and exchangeable calcium were 53.57%和50.00%, respectively. Especially the deficiency of exchangeable magnesium and available boron was serious, and the deficient and extremely deficient ratios reached 57.14%, 21.43%, and 32.14%, 67.86%, respectively. However, The situation of soil nutrient content lack such as available phosphorus, potassium, iron and copper was common, and their excessive percentages were 78.57%, 78.58%, 96.43% and 89.29%, respectively. 【Conclusion】It should rationally control the application of phosphorus, potassium fertilizers and fungicides containing copper in citrus orchard of eastern Guangdong province, more calcium, magnesium, boron and organic fertilizers should be used in the citrus orchards, and lime application for acid soil contributes to improving soil nutrition and reduce the excess of iron． |
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