This study aimed to select the optimal microbial agents for ammonia gas reduction in Chinese cabbage cultivation and evaluate their ammonia reduction efficiency. By selecting the optimum microorganism to reduce ammonia emissions, the ammonia emission reduction efficiencies of the nitrification microorganisms, Alcaligenes faecalis subsp. faecalis and Brevibacillus sp. were 21 and 31%, respectively, which were superior to those of other microorganisms. The best ammonia emission reduction efficiency of the acid-producing microorganisms was 55%. The optimum mixing ratio of microbial agent for removing ammonia gas emitted from NPK-containing soil was: acid-producing microorganism:Alcaligenes faecalis subsp. faecalis:Brevibaillus sp. = 0.70:0.15:0.15. The optimum treatment amount was 500 L/ha, and the optimum number of microbial agents was basal fertilization (also known as pre-planting fertilization) once and additional fertilization three times, for a total of four times. The reduction efficiency of ammonia emissions from NPK-containing soil under optimum conditions in cabbage cultivation was 27% lower than that of the control (only NPK-containing soil). Therefore, the microbial agent developed in this study can be utilized to effectively reduce the emission of ammonia, a secondary fine particle precursor, while maintaining crop yield in agricultural fields.

中文翻译：

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微生物菌剂处理减少大白菜种植中氨气排放


本研究旨在筛选最佳的大白菜氨氮还原微生物菌剂，并评价其氨氮还原效率。通过选择最优的氨氮减排微生物，硝化微生物粪产碱菌亚种的氨氮减排效率显着提高。粪肠球菌和短杆菌属。分别为21%和31%，优于其他微生物。产酸微生物的最佳氨氮减排效率为55%。去除含氮磷钾土壤氨气的微生物菌剂的最佳配比为：产酸微生物：粪产碱菌亚种。粪肠球菌：短杆菌属。 = 0.70:0.15:0.15。最佳处理量为500 L/ha，最佳微生物菌剂数量为基肥（又称种植前施肥）1次，追施3次，共4次。甘蓝种植最佳条件下含氮磷钾土壤氨氮排放的减排效率比对照（仅含氮磷钾土壤）降低了27%。因此，本研究开发的微生物制剂可用于有效减少二次细颗粒前体氨的排放，同时保持农田作物产量。