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| 云南临沧热区植烟土壤养分丰缺状况及肥力质量评价 |
| Evaluation of Nutrient Abundance,Deficiency and Fertility Quality of Tobacco-Growing Areas of Tropical Lincang |
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| DOI： |
| 中文关键词: 双江县 植烟土壤 土壤养分 丰缺状况 肥力质量 |
| 英文关键词:Shuangjiang County Tobacco-growing soils Soil nutrients Nutrient abundance and deficiency status Fertility quality |
| 基金项目:云南省烟草公司科技计划项目(2024530900242001)；云南省科技厅基础研究专项(202401AT070034)。 |
| 作者 | 单位 | | 侍浩良, 林登智,田明慧,张清云,周红霞,陶鹏文,和 敏,付丽美, 郑元仙,周厚发,黄飞燕 | (1.昆明学院 农学与生命科学学院/云南省都市特色农业工程技术研究中心,云南 昆明 650214；2.云南省烟草公司 临沧市公司 双江分公司,云南 临沧 677300；3 滇西科技师范学院,云南 临沧 677000) |
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| 中文摘要: |
| 根据海拔、土壤类型、地形地貌、生产水平等因素采集双江县5个植烟乡镇共24份土壤样品，分析土壤常规8项及中微量元素等指标，以变异系数法确定权重，利用模糊数学隶属度模型计算土壤肥力综合指数；结合相关性分析，对双江县5个乡镇的植烟土壤养分及肥力质量进行综合性评价。结果表明:临沧热区植烟土壤平均pH值为5.29、平均HN为96.17 mg/kg，略低于优质烤烟生产适宜水平；OM、TN、TP和TK的含量在适宜范围，均值分别为29.68 g/kg、1.36 g/kg、0.82 g/kg和18.22 g/kg；AP平均含量59.14 mg/kg、AK平均含量365.08 mg/kg，均达到很高水平。从土壤中微量元素含量看，ECa、AMo均处于较低水平；EMg、ASi均在适宜范围内；AMn、ACu均处于高水平；AZn、AB和AFe均处于较高水平；相关性分析的结果表明，土壤养分之间存在复杂的相互作用，其中OM与TN、TP、HN、AP、AFe、AZn和AB呈极显著正相关，与AMo呈极显著负相关，与EMg和AMn呈显著负相关，与ECa和ASi呈负相关；5个乡镇中邦丙乡综合土壤肥力最高，IFI值为0.72（Ⅲ级），其次是勐勐镇、大文乡、沙河乡和忙糯乡，均是Ⅱ级。因此,双江县整体适宜烤烟种植，但各乡镇肥力差异较大，在烤烟生长过程中需要因地制宜，科学施肥，科学管理，稳步提升土壤质量，从而推动双江县烟叶质量的提升和烟草产业的可持续发展。 |
| 英文摘要: |
| To provide a scientific basis for soil nutrient management in tobacco cultivation in Shuangjiang County, this study comprehensively evaluated the nutrient abundance, deficiency status, and fertility quality of tobacco-planting soils. A total of 24 soil samples were collected from five tobacco-growing towns in Shuangjiang County, based on factors such as altitude, soil type, topography, and production level. Eight conventional soil parameters, along with medium and trace elements, were analyzed. The weights of each parameter were determined using the coefficient of variation method, and the comprehensive soil fertility index (IFI) was calculated using a fuzzy membership function model. Combined with correlation analysis, the soil nutrient levels and fertility status in the five towns were systematically assessed.The results showed that the mean soil pH and hydrolyzed nitrogen (HN) content were 5.29 and 96.17 mg/kg, respectively, both slightly below optimal levels for high-quality flue-cured tobacco production. The mean values of organic matter (OM), total nitrogen (TN), total phosphorus (TP), and total potassium (TK) were 29.68 g/kg, 1.36 g/kg, 0.82 g/kg, and 18.22 g/kg, respectively. The average available phosphorus (AP) and available potassium (AK) contents were 59.14 mg/kg and 365.08 mg/kg, respectively. Exchangeable calcium (ECa) and available molybdenum (AMo) were found to be at low levels, while exchangeable magnesium (EMg) and available silicon (ASi) were within appropriate ranges. Available manganese (AMn), available copper (ACu), available zinc (AZn), available boron (AB), and available iron (AFe) were present at high levels.Correlation analysis revealed complex interactions among soil nutrients. OM was highly significantly positively correlated with TN, TP, HN, AP, AFe, AZn, and AB; highly significantly negatively correlated with AMo; significantly negatively correlated with EMg and AMn; and negatively correlated with ECa and ASi. Among the five towns in Shuangjiang County, Bangbing Township had the highest soil fertility index (IFI = 0.72, Grade III), followed by Mengmeng, Dawen, Shahe, and Mangnuo Townships, all of which were classified as Grade II. In conclusion, Shuangjiang County is generally suitable for tobacco cultivation. However, fertility levels vary considerably among towns. Therefore, region-specific and scientifically based fertilization strategies should be adopted to gradually improve soil quality, thereby enhancing tobacco leaf quality and promoting the sustainable development of the local tobacco industry. |
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