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Properties of humus-like substances isolated from organic wastes and their effects on structures of soil humus by Fourier transform infrared spectroscopy
Archives of Agronomy and Soil Science ( IF 2.4 ) Pub Date : 2020-09-13 , DOI: 10.1080/03650340.2020.1818072
Juan Hu 1, 2, 3 , Wenming Zhang 4 , Ahmed Sharaf 3 , Wei Fan 3 , Ling Sun 3 , Jimei Sun 5 , Lixia Wang 2 , Jinggui Wu 3
Affiliation  

ABSTRACT

The structures of soil humus (HS) amended with organic wastes (OWs) were closely related to properties of OWs-derived humus-like substances (HSL). This work evaluated the properties of HSL isolated from mushroom residue (MR), chicken manure (CM), sheep manure (SM), tree leaves (TL), maize straw (MS) and fodder grass (FG) and studied the structures of soil humic acid (HA) and fulvic acid (FA) amended with these OW. FTIR results showed that the relative intensities at 1,640 cm−1 peaks of TL-, FG- and SM-derived HAL were higher than other CM-, MS- and MR-derived HAL (p < 0.05), while the 2,930/1,640 ratios were lower (p < 0.05). Relatively lower E4/E6 ratios and ΔlogK values of TL-, FG- and SM-derived HAL were recorded (p < 0.05). Relative intensities at 1,620 cm−1 peaks of soil HA and soil FA amended with TL, FG and SM were higher than other OWs, while the 2,930/1,620 ratios were significantly lower (p < 0.05). The 2,930/1,620 ratio of soil HA and soil FA amended with MS and CM was the highest, respectively. In conclusion, the properties of OWs-derived HSL play important roles in functional groups of soil HS amended with these OWs.



中文翻译:

傅里叶变换红外光谱研究从有机废物中分离的类腐殖质物质的性质及其对土壤腐殖质结构的影响

摘要

用有机废物 (OWs) 修饰的土壤腐殖质 (HS) 的结构与 OWs 衍生的类腐殖质物质 (HSL) 的性质密切相关。这项工作评估了从蘑菇渣 (MR)、鸡粪 (CM)、羊粪 (SM)、树叶 (TL)、玉米秸秆 (MS) 和饲料草 (FG) 中分离出的 HSL 的特性,并研究了土壤的结构用这些 OW 修正的腐殖酸 (HA) 和富里酸 (FA)。FTIR 结果表明,TL-、FG-和 SM 衍生的 HAL在 1,640 cm -1峰的相对强度高于其他 CM-、MS-和 MR 衍生的 HAL ( p < 0.05),而 2,930/1,640 的比率较低(p < 0.05)。相对较低的 E 4 /E 6比率和 Δlog K记录了 TL-、FG- 和 SM 衍生的 HAL 值(p < 0.05)。用 TL、FG 和 SM 修正的土壤 HA 和土壤 FA 的1,620 cm -1峰值处的相对强度高于其他 OW,而 2,930/1,620 的比率显着较低(p < 0.05)。用 MS 和 CM 修正的土壤 HA 和土壤 FA 的 2,930/1,620 比率分别最高。总之,OWs 衍生的 HSL 的特性在用这些 OWs 修正的土壤 HS 的功能组中起着重要作用。

更新日期:2020-09-13
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