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通过盆栽试验,探讨了不同生物黑炭对烤烟生长及养分吸收的影响。结果表明:施用生物黑炭没有增加烟株的吸N量,但可显著增加烟株对P、K养分的吸收量,从而有利于烟株的生长;其中施用烟秆黑炭比玉米秸秆黑炭更能促进烟株的生长,且烟株地上部分的生物量随着黑炭施用量的增加而增加。据此,在烤烟的生产实践中可考虑适当施用一定量的生物黑炭,以进一步提高烤烟种植的生产效益。
Pot experiments were conducted to investigate the effects of different biological black carbon on the growth and nutrient absorption of flue-cured tobacco. The results showed that application of bio-black charcoal did not increase the N uptake of tobacco plants, but significantly increased the uptake of P and K nutrients by tobacco plants, which was beneficial to the growth of tobacco plants. The application of black carbon was better than that of corn straw black carbon Which can promote the growth of tobacco plants, and the biomass of aerial parts of tobacco plants increased with the increase of the amount of black carbon applied. Accordingly, a certain amount of bio-black charcoal can be considered in the production practice of flue-cured tobacco so as to further improve the production efficiency of flue-cured tobacco planting.