CAJ | 학술논문

采用小白菜温室盆栽试验方法，研究了生物竹炭对盐渍化土壤的修复和对小白菜生长及其品质的影响。试验共设4个处理：对照、有机肥、生物竹炭、有机肥＋生物竹炭。结果表明：生物竹炭有效降低了土壤的电导率，有机肥显著提高了土壤的电导率，生物竹炭与有机肥配施对土壤电导率无影响；生物竹炭使土壤中的总碳、有机质提高，促进了有效磷、速效钾的释放，降低了土壤总可溶性氮的含量，尤其使铵态氮、硝态氮含量显著降低，但土壤酸碱性和含水率无明显变化；生物竹炭处理显著提高了小白菜的株高、生物量和可溶性糖含量，降低了可食用部分的硝酸盐含量。盆栽试验结果显示，生物竹炭具有改良盐渍化土壤、促进小白菜产量增加和品质提高的作用。
채용소백채온실분재시험방법，연구료생물죽탄대염지화토양적수복화대소백채생장급기품질적영향。시험공설4개처리：대조、유궤비、생물죽탄、유궤비＋생물죽탄。결과표명：생물죽탄유효강저료토양적전도솔，유궤비현저제고료토양적전도솔，생물죽탄여유궤비배시대토양전도솔무영향；생물죽탄사토양중적총탄、유궤질제고，촉진료유효린、속효갑적석방，강저료토양총가용성담적함량，우기사안태담、초태담함량현저강저，단토양산감성화함수솔무명현변화；생물죽탄처리현저제고료소백채적주고、생물량화가용성당함량，강저료가식용부분적초산염함량。분재시험결과현시，생물죽탄구유개량염지화토양、촉진소백채산량증가화품질제고적작용。
A greenhouse pot trial was conducted to evaluate the changes in salinity and other physicochemical properties of soil, and biomass and quality of pakchoi after bamboo biochar additions. Four treatments, bamboo biochar, organic fertilizer, organic fertilizer plus bamboo biochar and control(no fertilizer or biochar added), were employed. The electrical conductivity(EC)of soil was decreased signifi-cantly by bamboo biochar amendments, but increased by organic fertilizer. Organic fertilizer plus bamboo biochar did not significantly affect EC. Applying bamboo biochar significantly increased the total carbon content, organic matter, available phosphorus and available potassium in soil. On the contrary, biochar additions significantly decreased total soluble nitrogen, especially ammonium nitrogen and nitrate nitrogen. Soil pH and moisture did not vary among treatments. Bamboo biochar profoundly increased pakchoi height, biomass and soluble sugar con-tents, and improved its overall quality, but significantly decreased nitrate concentration in edible parts. These results show that applying bamboo biochar could improve coastal saline soil and in turn increase pakchoi yield and quality.