安徽省主要烟区土壤养分状况及平衡施肥

Nutrients in Soils from the Main Tobacco Planting Zones in Anhui Province and Balanced Fertilization

对安徽省主要烟区 832个土壤样品进行了分析 ,结果表明 :全省土壤有机质含量适中 ,土壤水解氮含量较高 ,速效磷含量中等 ,速效钾含量偏低 ,氯离子含量不高 ,皖南烟区土壤酸性较强。针对土壤养分状况 ,提出了控氮调磷补钾的烤烟施肥原则 。

The contents of nutrients in 832 soil samples collected from main tobacco planting zones in Anhui province were analyzed. The results showed that the average contents of organic matter, hydrolytic N, rapidly available P and K, and Cl\+- was 13-18g/kg, 95.6mg/kg, 17.4mg/kg, 129.2mg/kg, and 15.8mg/kg respectively, and soil pH values of the southern areas were 4-6. According to the data obtained, fertilization rules of controlling N, regulating P, and adding K for flue-cured tobacco were presented, and the schemes of fertilization for various areas were also worked out.