【摘要】 【目的】为了解红河州不同类型植烟土壤的肥力丰缺状况。【方法】采集红河烟区不同类型土壤样品888份,并对土壤样品的9项土壤养分指标进行测定分析。【结果】6种类型土壤的平均pH除黄壤稍低外,均在烤烟适宜生长的范围内;有机质平均含量除胶泥土外,均高于适宜有机质含量范围;碱解氮含量平均值最高的是黄壤,达162.67 mg/kg,胶泥土碱解氮平均含量最低,为106.37 mg/kg;速效磷平均含量除黄壤外,均在中等范围水平,速效磷平均含量最高的是砂壤土,为39.60 mg/kg,最低的是红壤,为23.03 mg/kg;速效钾平均含量红壤最高,为230.50 mg/kg,其余类型土壤均在中等范围内,最低为黄壤,为160.89 mg/kg。水溶性氯平均含量最高的是黄壤,最低的是粘土。6种类型土壤有效锌含量均能够满足优质烤烟生产的需求;6种类型土壤有效硼平均含量均低于临界值;6种类型土壤有效钼含量除了黄壤,其余5种类型土壤在临界值以下的比例均较大。【结论】红河烟区黄壤偏酸,应施用碱性肥料改良;胶泥土有机质及碱解氮含量低,要注意有机肥及氮肥的补充;黄壤中水溶性氯含量高,应禁施含氯肥料;6种类型土壤的有效硼和有效钼普遍偏低,应增加硼肥和钼肥的施用。更多还原

【Abstract】 【Objective】The present paper aimed to understand the fertility status of different types of tobacco planting soils in Honghe Prefecture. 【Method】888 soil samples were collected from different types of tobacco planting soils in Honghe Prefecture. 【Result】The results showed that the average pH of the six types of soils except yellow soil was slightly lower, the of soil pH other types was all within the suitable growth range of flue-cured tobacco; the average content of organic matter except clay soil was higher than that of suitable organic matter content; the highest average content of alkali-hydrolyzed nitrogen was yellow soil, which reached 162.67 mg/kg. The average content of alkali-hydrolyzed nitrogen was the lowest in clay soil(106.37 mg/kg); the average content of available phosphorus was at middle level except yellow soil, the highest was sandy loam soil(39.60 mg/kg); the lowest was red soil(23.03 mg/kg); The average content of available potassium was the highest in red soil(230.50 mg/kg); the other types of soil was at the middle level, and the lowest in yellow soil(160.89 mg/kg). The content of water-soluble chlorine was highest in yellow soil, and the lowest in clay soil. Available zinc content of six types soils could meet the needs of high-quality flue-cured tobacco production, available boron content was lower than the critical value, available molybdenum content was higher than the critical value, but the proportion of available molybdenum content in other five types of soils was higher than the critical value except yellow soil. 【Conclusion】Overall, alkaline fertilizer should be applied to improve the acidic yellow soil in Honghe tobacco-growing area, organic matter and alkaline hydrolyzable nitrogen content in clay soil was low, organic fertilizer and nitrogen fertilizer should be supplemented, chlorine-containing fertilizer should be forbidden in yellow soil with high water-soluble chlorine content, and available boron and molybdenum in six types of soils was generally low, so which should be increased.更多还原