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Novel seedling substrate made by different types of biogas residues: Feasibility, carbon emission reduction and economic benefit potential
Industrial Crops and Products ( IF 5.9 ) Pub Date : 2022-05-07 , DOI: 10.1016/j.indcrop.2022.115028
Xingyao Meng , Qingping Wang , Zheng Lv , Yafan Cai , Mingcheng Zhu , Jinglin Li , Xuguang Ma , Zongjun Cui , Lianhai Ren

High-value utilization of biogas residue is essential to drive the development of the biogas industry. This study investigated the feasibility of total or partial replacement for peat (100%, 75%, 50%, 25% and 0%) by corn straw biogas residue and dairy manure biogas residue in growth media for tomato and pepper seedlings. The experiment was arranged in a completely-randomized design, tomato and pepper seeds were sown into each media and grown under commercial nursery conditions until they reached commercial transplant size. The results showed that growth of tomato and pepper was reduced in media containing corn straw biogas residue. However, tomato and pepper seedlings growing in a media of 50% dairy manure biogas residue were considered to be the most satisfactory. The results of the bacterial community analysis showed that the highest abundance of Anaerolineaceae was found in CS100 that meaning immaturity. Furthermore, for a biogas plant with a daily biogas production of 10,000 m3, biogas energy utilization and biogas residue substitution for peat could reduce 439,437 kg/year of CO2 equivalent emissions and arouse 3300,000¥benefit per year by replacing peat. Thus, partial replacement of peat by dairy manure biogas residue as a growth media could be promoted for its wide environmental and economic benefits.



中文翻译:

不同类型沼渣制成的新型育苗基质:可行性、碳减排和经济效益潜力

沼渣的高价值利用是推动沼气产业发展的关键。本研究探讨了玉米秸秆沼渣和奶牛粪全部或部分替代泥炭(100%、75%、50%、25%和0%)的可行性番茄和辣椒幼苗生长培养基中的沼气残留物。该实验以完全随机的设计安排,将番茄和辣椒种子播种到每种培养基中,并在商业苗圃条件下生长,直到它们达到商业移植大小。结果表明,在含有玉米秸秆沼渣的培养基中,番茄和辣椒的生长受到抑制。然而,在 50% 的奶牛粪沼渣培养基中生长的番茄和辣椒幼苗被认为是最令人满意的。细菌群落分析结果表明,在CS100中发现了最高丰度的Anaerolineaceae,这意味着不成熟。此外,对于日产沼气 10,000 m 3的沼气厂,沼气能源利用和沼渣替代泥炭可减少CO 2当量排放439437公斤/年,每年通过替代泥炭可产生330万元的效益。因此,奶牛粪沼渣部分替代泥炭作为生长培养基可以促进其广泛的环境和经济效益。

更新日期:2022-05-08
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