| 曾林芳,陈爱华,王成秋,焦必宁.广西富川纽荷尔脐橙园土壤和植株叶片营养状况研究与评价[J].中国南方果树,2012,41(5): |
| 广西富川纽荷尔脐橙园土壤和植株叶片营养状况研究与评价 |
| Analysis and evaluation on nutritional status in soil and citrus leaf of Newhall orange orchard in Fuchuan of Guangxi |
| 投稿时间：2012-07-06 修订日期：2012-08-23 |
| DOI： |
| 中文关键词: 柑桔园 营养状况 土壤 纽荷尔脐橙 |
| 英文关键词:citrus orchards nutritional status soil Newhall orange orchard |
| 基金项目:现代农业（柑桔）产业技术体系建设专项（CARS-27-02A) |
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| 中文摘要: |
| 对广西富川县60个纽荷尔脐橙园土壤和叶片样品进行营养成分检测分析。结果表明，所调查纽荷尔脐橙园土壤偏酸，土壤有机质、有效钾、有效锌、交换性钙含量较高；碱解氮、有效磷、有效铁和有效铜含量中等；交换性镁、有效锰和有效硼含量较低。脐橙叶片中磷、钾和铁含量大部分处于高量水平，少量处于适量范围，但是铜和锌的含量多数处于低量水平。纽荷尔脐橙园土壤pH值与交换性镁呈极显著正相关性，与有效钾呈极显著负相关，土壤有机质与有效锌呈极显著正相关。土壤交换性钙与叶片钙含量呈显著正相关、交换性镁与叶片镁的含量呈显著正相关，土壤交换性钙、镁与叶片锰含量呈极显著负相关，土壤酸度和土壤中营养元素的有效含量对树体营养元素的吸收和营养水平有较大影响，各个果园的氮、磷、钾肥施用极其不均，大部分果园钾肥施用过量。本研究对指导富川县纽荷尔脐橙园配方施肥和营养调节具有重大意义。 |
| 英文摘要: |
| The nutritional composition of soil samples and leaf samples from 60 Newhall orange orchards In Fuchuan of Guangxi were detected and analyzed. The results showed that surveyed Newhall orange orchards soil pH was acidic, the contents of soil organic matter, available K, available Zn, exchangeable Ca were higher; the contents of available nitrogen, available P, available Fe and available Cu were medium, the contents of exchangeable Mg、available Mn and available B were generally low. The contents of P、K、Fe in most of the citrus leaves were in the high level ,while appropriate in other citrus leaves , generally, the content of Cu、Zn was lower. Newhall orange orchard soil pH and the content of soil exchangeable Mg showed highly significant positive correlation, and available K was highly significant negative correlation, the content of soil organic matter and available Zn was highly significant positive correlation. The content of soil exchangeable Ca and leaf total Ca was in significant positive correlation, the content of soil exchangeable Mg and leaf total Mg was also in significant positive correlation, and the content of both soil exchangeable Ca and Mg were highly significant negative correlation with the content of leaf total Mn. The soil acidity and the effective content of soil nutrient elements had important infuluence on the tree in the absorption of nutritional elements and nutrient levels of the tree, the fertilization amount of nitrogen、phosphorus and potassium fertilizer in each orchard was extremely uneven, and most of the orchards potassium fertilizer was excessive. The study will significancely guide scientific fertilization and adjustment of nutrition in Fuchuan county Newhall navel orange orchard. |
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