通过田间小区试验研究了无机矿石类及生物炭改良剂不同组合对皖南旱坡地土壤性状以及烤烟产量和烟叶品质的影响。结果表明：与对照相比，3种无机矿石材料(T20、G20、硅藻土)和2种生物炭(竹炭和砻糠炭)的改良剂的不同组合，可使土壤体积质量下降0.27 ~ 0.34 g/cm³，田间持水量提高11.6% ~ 55.6%，pH提高了0.45 ~ 0.93个单位；烤烟产量增加26 ~ 397 kg/hm²，烤烟烟碱与全氮含量有所下降，还原糖含量有所增加，糖碱比优化，品质进一步提升。本研究结果可以为皖南旱坡地烟区土壤改良、提高特色烟产量和品质、促进农民增产增收提供有效的指导。

A field experiment was conducted to study the effects of inorganic minerals and biochar amendments applied in various combinations on the yield and quality of flue-cured tobacco and soil properties of slope upland in South Anhui, China. The results showed that applications of various amendments prepared from 3 kinds of inorganic mineral materials (T20, G20, diatomite) and 2 kinds of biochars (bamboo and rice husk) reduced soil bulk density by 0.27–0.34 g/cm³, increased soil moisture by 11.6%–55.6% and pH by 0.45–0.93 units, and thus increased the flue-cured tobacco yield by 26–397 kg/hm². Applications of the amendments also decreased nicotine and total nitrogen contents, increased the reducing sugar content and the ratio of sugar to nicotine, and thus improved tobacco quality. The results presented in this study can provide useful references for soil amelioration, and increases in yield and quality of tobacco growing in the soil in South Anhui.

S156.2

沪皖现代烟草农业高科技示范园科技项目专项(CF56-ZJ1)资助。