CAJ | 학술논문

针对衡阳市烟区长期连作及不合理施肥造成的土壤质量持续下降等因素，通过施用稻壳生物炭等技术措施，开展其对烟田土壤修复效果研究。结果表明：烟苗移栽前穴施稻壳生物炭12000 kg/hm2，可使采收后烟田土壤中碱解氮、速效钾、最大田间持水量分别增加17.55%、36.29%、6.51%，土壤容重降低0.033 g/cm3，明显提升上等烟叶比例；对烟株生长发育、农艺性状、烟叶产值、经济效益等具有一定的改善与提升，而且未发现其对烟株生长产生任何不利影响。
침대형양시연구장기련작급불합리시비조성적토양질량지속하강등인소，통과시용도각생물탄등기술조시，개전기대연전토양수복효과연구。결과표명：연묘이재전혈시도각생물탄12000 kg/hm2，가사채수후연전토양중감해담、속효갑、최대전간지수량분별증가17.55%、36.29%、6.51%，토양용중강저0.033 g/cm3，명현제승상등연협비례；대연주생장발육、농예성상、연협산치、경제효익등구유일정적개선여제승，이차미발현기대연주생장산생임하불리영향。
Aim to soil quality deterioration caused by continuous cropping obstacle and absurd fertilizing in Hengyang tobacco area,the study investigated the repairing effects of biochar on deteriorated tobacco soil. The main results showed that alkaline hydrolysis N,available K,maximum water capacity had increased by 17.55%,36.29%and 6.51%before transplanting under 12 000 kg/hm2 biochar was applied,respectively,and the soil bulk density reduced 0.033 g/cm3,moreover,the ratio of first-class and middle-class leaves significant increased as well. In addition,biochar application had improved the growth,agronomic traits,leaf-profit on different degree in flue-cured tobacco production instead of any adverse impacts.