| 李文云,杨雯,林乾,张兴无,韩秀梅,王小柯,罗怿,李金强.贵州柑橘主产区土壤营养状况和综合肥力分析[J].中国南方果树,2025,54(1): |
| 贵州柑橘主产区土壤营养状况和综合肥力分析 |
| Analysis of Soil Nutritional Status and Comprehensive Fertility in Guizhou Citrus Orchards |
| 投稿时间：2024-08-06 修订日期：2024-08-06 |
| DOI： |
| 中文关键词: 柑橘 有机质 pH 土壤营养 综合肥力 |
| 英文关键词:Citrus Soil Nutritional Comprehensive Fertility |
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| 中文摘要: |
| 为了解贵州柑橘土壤营养和综合肥力状况，采集贵州省18个柑橘主产县共77个柑橘园土壤样品，分析pH、有机质、大量元素、中量元素、微量元素和综合肥力。结果表明大部分土壤呈酸性，pH低于适宜值5.5~6.5的土壤高达54.54%；有机质含量较高，处于适宜值及以上的样品高达87.02%；碱解氮含量不足的样品高达62.34%；有效磷和有效钾总体含量丰富的比例分别为70.13%和98.70%；有效钙和有效镁含量丰富，不同地区达丰富水平的比例范围为50.00%~100.00%；有效硫和有效硼含量不足的为92.21%和77.92%。有效铁、有效锰和有效铜处于过量水平。土壤肥力的限制因子主要是土壤酸化，碱解氮、有效硫和有效硼含量不足。黔西南土壤综合肥力得分最高，其次是黔南和黔东南。生产上根据各地区土壤实际情况，适当调整土壤pH至微酸性以最适柑橘生长，适当增施氮肥和硼肥，控制磷肥、钾肥和铜制剂的用量。 |
| 英文摘要: |
| To understand the nutritional and comprehensive fertility status of citrus soil in Guizhou Province, soil samples were collected from 77 citrus orchards in 18 main citrus producing counties. Soil pH, organic matter, major elements, medium elements, trace elements, and comprehensive fertility were analyzed. Results showed that most of the soil was acidic, The soil samples below the suitable value of 5.5~6.5 were as high as 54.54%. The overall organic matter content was rich, with samples at or above the appropriate value reached 87.02%. The sample with insufficient alkaline nitrogen content reached up to 62.34%. The proportion of available phosphorus and available potassium content reached rich levels is 70.13% and 98.70%, respectively. The content of effective calcium and effective magnesium was abundant, with a proportion range of 50.00% to 100.00% in different regions. The proportion of insufficient effective sulfur and effective boron content was 92.21% and 77.92%, respectively. Effective iron, effective manganese, and effective copper were generally at excessive levels. The limited factors of soil fertility are mainly soil acidification, insufficient alkaline nitrogen, available sulfur, and available boron content. The comprehensive fertility score of soil in southwestern Guizhou was the highest, followed by southern and southeastern Guizhou. According to the actual soil conditions in each region, the soil pH should be appropriately increased, nitrogen and boron fertilizers should be applied, and the amount of phosphorus, potassium, and copper fertilizers should be controlled in production. |
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