CAJ | 학술논문

以规模化养猪场猪粪为原料发酵的沼渣作为供试材料，研究施用沼渣对白菜及土壤重金属含量状况影响。结果表明：在施用化肥基础上，传统沼渣用量条件下白菜生物产量显著高于不施肥和单施化肥处理，低于传统施用猪粪处理；与不施肥和单施化肥处理相比，在施用化肥基础上施用不同用量沼渣能显著增加白菜镉、铜、锌及降低铬、砷的含量水平，且重金属镉、铜、锌含量随沼渣用量增加呈直线上升关系，当季施用沼渣不会对白菜造成重金属污染风险，但不排除长期施用沼渣因土壤重金属积累而对白菜重金属造成潜在污染风险；从土壤重金属积累状况来看，与不施肥和单施化肥处理相比，施用不同用量沼渣能增加土壤全铬、全铜、全锌的含量水平，其含量水平随沼渣用量呈直线上升趋势，长期大量施用沼渣对土壤重金属存在污染风险。在同等用量条件下，沼渣作有机肥其安全风险性大于猪粪作有机肥。
이규모화양저장저분위원료발효적소사작위공시재료，연구시용소사대백채급토양중금속함량상황영향。결과표명：재시용화비기출상，전통소사용량조건하백채생물산량현저고우불시비화단시화비처리，저우전통시용저분처리；여불시비화단시화비처리상비，재시용화비기출상시용불동용량소사능현저증가백채력、동、자급강저락、신적함량수평，차중금속력、동、자함량수소사용량증가정직선상승관계，당계시용소사불회대백채조성중금속오염풍험，단불배제장기시용소사인토양중금속적루이대백채중금속조성잠재오염풍험；종토양중금속적루상황래간，여불시비화단시화비처리상비，시용불동용량소사능증가토양전락、전동、전자적함량수평，기함량수평수소사용량정직선상승추세，장기대량시용소사대토양중금속존재오염풍험。재동등용량조건하，소사작유궤비기안전풍험성대우저분작유궤비。
The main content of this article was to study the effects of heavy metals contents by application of biogas residue in Chinese cabbage and soil .It used Large-scale pig farm manure as raw materials and fermentation biogas residue as tested material .The results showed that:the biomass yield of the Chinese cabbage in condition of the traditional use level of biogas residue ,which was on the basis of the application of chemical fertilizer ,was signif-icantly higher than non-fertilizer and only chemical fertilizer treatment ,but it was lower than traditional the pig ma-nure treatment .Comparing with non-fertilizer and only chemical fertilizer treatments ,the application of biogas resi-due on the basis of chemical fertilizer could significantly increase the contents of Cd ,Cu,Zn in chinese cabbage ,re-duce the contents of Cr ,As in it;also,the contents of heavy metals ( Cd,Cu,Zn) increased with the increasing use level of biogas residue , their relationship was rising straight-linearly, the application of biogas residue in season would′t cause the risk of heavy metal pollution in Chinese cabbage , but we couldn′t rulr out the potential risk of heavy metals pollution in Chinese cabbage with long-term application of accumulation of heavy metals in the soil;From the accumulation of heavy metals in soil ,comparing with non-fertilizer and only chemical fertilizer treatments , application of biogas residue on the basis of chemical fertilizer could increase the content of total Cr ,total Cu ,total Zn in soil,the relationship with the increasing use of biogas residue was also straight -linearly,a large number of long-term use of biogas residue could lead to soil heavy metal pollution risk .Under the same dosage conditions ,bio-gas residue as organic fertilizer security risk was greater than the pig manure .