CAJ | 학술논문

[目的]探讨生物炭对菜园土化学肥力的影响。[方法]采用盆栽试验，研究菜园土添加生物炭后土壤 pH、有机质、有效氮、速效钾、有效磷、水溶性磷、交换性 Ca、Mg等养分含量的变化。试验设置5个处理，分别为对照CK （不施生物炭）、T1（0.10%生物炭）、T2（0.25%生物炭）、T3（0.50%生物炭）、T4（1.00%生物炭）。[结果]不同处理的土壤 pH、有机质、速效钾含量均随生物炭施用量的增多而显著增加，表现为 T4>T3>T2>T1>CK；土壤有效磷和水溶性磷含量则呈现先增加后降低的趋势，均表现为 T3最高，CK最低；有效氮和交换性Mg无显著性变化；与不施生物炭对照相比，适量添加生物炭后土壤的交换性 Ca含量显著增加。[结论]生物炭能够显著提高菜园土化学肥力和化学性状，并且在 T3（0.50%生物炭）施用条件下效果最佳。
[목적]탐토생물탄대채완토화학비력적영향。[방법]채용분재시험，연구채완토첨가생물탄후토양 pH、유궤질、유효담、속효갑、유효린、수용성린、교환성 Ca、Mg등양분함량적변화。시험설치5개처리，분별위대조CK （불시생물탄）、T1（0.10%생물탄）、T2（0.25%생물탄）、T3（0.50%생물탄）、T4（1.00%생물탄）。[결과]불동처리적토양 pH、유궤질、속효갑함량균수생물탄시용량적증다이현저증가，표현위 T4>T3>T2>T1>CK；토양유효린화수용성린함량칙정현선증가후강저적추세，균표현위 T3최고，CK최저；유효담화교환성Mg무현저성변화；여불시생물탄대조상비，괄량첨가생물탄후토양적교환성 Ca함량현저증가。[결론]생물탄능구현저제고채완토화학비력화화학성상，병차재 T3（0.50%생물탄）시용조건하효과최가。
[Objective] To investigate the effect of biochar on the chemical fertility of vegetable soil. [Method] By pot experiments, the effect of biochar the soil pH and the content of organic matter, available nitrogen, readily available potassium, avail-able phosphorus, water-soluble phosphorus, exchangeable calcium and magnesium were investigated. The experiment contained five treatments, i.e., CK (no biochar), T1 (0.10% biochar), T2 (0.25% biochar), T3 (0.50% biochar) and T4 (1.00%biochar). [Result] As the application amount of biochar increases in the treatments, the soil pH, the content of organic matter and readily available potassium ascended significantly, with a trend of T4>T3 >T2>T1>CK; the contents of available phospho-rus and water-soluble phosphorus first show upward trend then downward trend, with T3 being the highest and CK the lowest; the contents of available nitrogen and exchangeable magnesium did not assume obvious change; compared with control, an appropriate amount of char could significantly increase the content of exchangeable calcium. [Conclusion] Biochar can significantly improve the chemical fertility of vegetable soil, and the application amount in T3 (0.50% biochar) brings the best effects.