攀西山区植烟土壤养分特征分析与肥力评价  

Nutrient Characteristics Analysis and Fertility Evaluation of Tobacco-planting Soil in Panxi Mountain Area

作　　者：杨宇 毛敏 潘兴兵 白加林[1] 杨建春[1] 简连均 刘余 石松柏[1] YANG Yu;MAO Min;PAN Xingbing;BAI Jialin;YANG Jianchun;JIAN Lianjun;LIU Yu;SHI Songbai*(Panzhihua Branch of Sichuan Tobacco Company,Panzhihua Sichuan 617000)

机构地区：[1]四川省烟草公司攀枝花市公司,四川攀枝花617000

出　　处：《现代农业科技》2023年第23期157-162,共6页Modern Agricultural Science and Technology

摘　　要：了解土壤肥力对烟田土壤保育具有积极的指导意义。本研究采集了四川攀西山区4个代表性植烟县(区)的19个典型烟田耕层样品,测定了对烤烟产质量影响大且能反映土壤肥力的指标,利用模糊综合评价法计算了烟田土壤综合肥力指数(IFI)。结果表明:19个烟田耕层土壤样品的pH值和有机质、全氮、碱解氮、有效磷、速效钾、水溶性氯离子含量平均值分别为6.25、21.6 g/kg、1.28 g/kg、120.61 mg/kg、42.84 mg/kg、148.69 mg/kg和7.47 mg/kg,适宜的植烟烟田比例分别为52.63%、26.32%、36.84%、42.11%、36.84%、84.21%和21.05%。烟田土壤IFI介于0.48~0.65,平均为0.55,总体上处于较高水平。施肥上应注意多施钾肥和磷肥并提高其利用率,对水溶性氯离子含量低(<10 mg/kg)的烟田可以酌情施用氯肥。Understanding soil fertility has positive guiding significance for soil conservation in tobacco fields.This study collected 19 typical tobacco field topsoil samples from 4 representative tobacco-planting counties(districts)in Panxi mountain area of Sichuan Province.The indicators that have great influence on the yield and quality of flue-cured tobacco and can reflect soil fertility were measured,and the integrated fertility index(IFI)of tobacco field was calculated using the fuzzy comprehensive evaluation method.The results showed that the average pH value and average contents of organic matter,total nitrogen,alkali-hydrolyzable nitrogen,available phosphorus,available potassium,and watersoluble chlorineion in the topsoil of 19 samples from tobacco fields were 6.25,21.6 g/kg,1.28 g/kg,120.61 mg/kg,42.84 mg/kg,148.69 mg/kg,and 7.47 mg/kg,respectively.The suitable proportions for planting tobacco fields were 52.63%,26.32%,36.84%,42.11%,36.84%,84.21%,and 21.05%,respectively.The IFI of soil in tobacco fields ranged from 0.48 to 0.65,with an average of 0.55,which was generally at a relatively high level.Attention should be paid to applying more potassium and phosphorus fertilizers in fertilization and improving their utilization efficiency.For tobacco fields with low content of water-soluble chloride ion(<10 mg/kg),chlorine fertilizer can be applied as appropriate.

关 键 词：植烟土壤 土壤养分 土壤肥力 综合评价 攀西山区 

分 类 号：S158[农业科学—土壤学]