| 王男麒,彭良志,淳长品,李勋,薛珺,范玉兰,梁梅青.赣南柑橘园背景土壤营养状况分析[J].中国南方果树,2012,41(5): |
| 赣南柑橘园背景土壤营养状况分析 |
| Study on Virgin Soil Nutrient Status for Citrus Orchards in Southern Jiangxi Province of China |
| 投稿时间：2012-06-11 修订日期：2012-07-05 |
| DOI： |
| 中文关键词: 赣南 柑橘园 背景土壤 营养状况 |
| 英文关键词:Southern Jiangxi province of China Citrus Orchard Virgin Soil Nutrient Status |
| 基金项目:现代农业（柑橘）产业技术体系建设专项；农业部行业攻关项目课题-山地橘园水肥滴灌设施和水肥一体化施用技术的研发与试验示范（20090323-10）；重庆市科委自然科学基金项目（cstcjjA80022）。 |
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| 中文摘要: |
| 对赣南16个县（市）223个代表性柑橘园5~35cm深的背景土壤样品进行了测试分析。结果表明，赣南地区有65.0%果园背景土壤pH值适宜或较适宜柑橘生长，95.5%的果园土壤有机质含量偏低，有效N、P、K缺乏的果园比例分别为40.8 %、92.8%和67.3%，中量元素养分Ca和Mg缺乏的果园比例分别为44.8%和89.2%，分别有5.8 %、14.4 %、44.6 %、26.0 %和67.2 %的果园缺乏有效Fe、Mn、Zn、Cu和B。另外，土壤有效Ca、Fe、Mn、Zn和Cu在部分柑橘果园背景土壤中存在过量现象，分别占3.6%、4.5%、9.9%、2.2%和4.5%。赣南地区柑橘园需重视土壤pH的调节及有机质、Ca、Mg和Zn肥的补充。 |
| 英文摘要: |
| Virgin soil (5~35cm depth) samples collected from wild lands nearby 223 citrus orchards in southern Jiangxi province of China were tested . The results showed that the soil pH values for 65.0% orchards were suitable for citrus growth, and soil organic matter(OM) in 95.5% orchards was in low status, and the deficient ratios of available macro-nutrient N, P and K were 40.8%, 92.8% and 67.3%，respectively. Deficient ratios of available Ca and Mg were 44.8% and 89.2%, and micro-nutrients Fe,Mn,Zn,Cu and B showed insufficient ratios of 5.8%,14.4 %,44.6%,26.0% and 67.2%, respectively. However，the results also indicated that 3.6%,4.5%,9.9%, 2.2% and 4.5% orchard virgin soil available Ca,Fe,Mn,Zn and Cu contents were in excess range. The citrus orchards in southern Jiangxi Province of China should be paid attention to regulate their pH values with the adequate supply of OM,Ca,Mg and Zn fertilizers. |
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