spent mushroom substrate biochar composting physicochemical
本文关键词:蘑菇培养土生物炭堆肥化利用及其对水稻生长的影响,由笔耕文化传播整理发布。
蘑菇培养土生物炭堆肥化利用及其对水稻生长的影响
Influence of Biochar from Spent Mushroom Substrate on Properties of Pig Manure Compost and Rice Growth
[1] [2] [3] [4] [5] [6] [7]
ZHANG Xiang, ZHANG Geng-ling, SUN Qian-nan, PENG Yan-bin, WANG Xing-dong, LI Meng, WANG Yin ( 1.Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, Chi
[1]中国科学院城市环境研究所,福建厦门361021; [2]华南理工大学环境与能源学院,广州510641
文章摘要:为尝试将蘑菇培养土制成生物炭来改善生物肥料的品质,重点考察了添加蘑菇培养土生物炭对猪粪堆肥的物化特性影响。结果表明:在500℃下热解制备的蘑菇培养土生物炭分别以0豫、5豫、10豫、15豫(W/W)的比例与猪粪混合堆肥后,显著降低了堆肥的电导率、初始含水率和有机物的损失量;堆肥中 Ca 与 K 的含量与添加生物炭没有太大的相关性,N 的含量与生物炭添加比例具有很好的正相关性,P 与 Mg 的改变量则随着生物炭添加比例的增加呈现下降趋势。水稻栽培实验结果表明施用生物炭能有效促进水稻生长,稻穗(干重)最多可增产49豫。
Abstr:Spent mushroom substrate(SMS), a bulky waste byproduct of commercial mushroom industry, has caused environmental pollu-tion. In this work, biochar derived from SMS was added to pig manure at a rate of 0, 5%, 10% and 15%(W/W)to investigate its effects on the physic-chemical properties of pig manure during composting and rice growth. Adding SMS-derived biochar significantly reduced elec-trical conductivity, initial moisture content and organic matter loss of the compost. The biochar additions significantly increased the N con-centrations in the compost, but had no obvious effects on the concentrations of Ca and K. The concentrations of P and Mg in the fertilizer in-creased as compared to the control, but the increments decreased with increasing amount of the biochar. Applying SMS-derived biochar ef-fectively promoted rice growth and increased the grain yield by 49% at 5% biochar.
文章关键词:
Keyword::spent mushroom substrate biochar composting physicochemical property rice
课题项目:国家自然科学基金面上项目(51176197);中国科学院重点部署项目(KZZD-EW-16);厦门市科技创新平台项目(350222013018)
本文关键词:蘑菇培养土生物炭堆肥化利用及其对水稻生长的影响,由笔耕文化传播整理发布。
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