CAJ | 학술논문

通过盆栽试验，研究了生物炭不同施用量对植烟土壤容重、pH值、有机质和速效养分含量及其在烤烟生长期内变化规律的影响。结果表明，每盆施用生物炭1～2 kg能显著降低土壤的容重，降幅在12％～20％，并且能提高土壤的pH值。土壤有机质含量与生物炭的施用量呈线性相关关系。施用生物炭能降低土壤碱解氮的含量，限制了土壤的氮素利用度；对土壤速效磷没有显著影响，能显著提高土壤速效钾的含量，并使土壤具备持续提供钾素的能力。
통과분재시험，연구료생물탄불동시용량대식연토양용중、pH치、유궤질화속효양분함량급기재고연생장기내변화규률적영향。결과표명，매분시용생물탄1～2 kg능현저강저토양적용중，강폭재12％～20％，병차능제고토양적pH치。토양유궤질함량여생물탄적시용량정선성상관관계。시용생물탄능강저토양감해담적함량，한제료토양적담소이용도；대토양속효린몰유현저영향，능현저제고토양속효갑적함량，병사토양구비지속제공갑소적능력。
The pot experiments were conducted to study the influences of different biochar application levels on soil bulk density , pH value , organic matter and available nutrients contents and their change rules during tobacco growing period .The results showed that 1~2 kg biochar application in every pot could reduce the soil bulk density significantly by 12%~20%, but increased the pH value .The content of organic matter in soil was linearly correlated with the biochar application level .The application of Biochar reduced the con-tent of alkaline nitrogen in soil and restricted the nitrogen availability .Its application could improve the con-tent of available potassium in soil and make soil have the ability to continuously provide potassium , but had no significant effect on available phosphorus content .