We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
不同培肥模式下腐殖酸对二氯隆嚇酸 光降解的影响.
- Authors
沈蝶; 代静玉; 季跃飞
- Abstract
Humus is a specific organic matter widely present in soil, phytic acid has a significant impact on the fate of pollutants in the environment. This study investigated the effects of organic fertilizers and organic-inorganic fertilizer patterns on soil humic acid (MA) and fulvic acid (FA) content, spectral properties, photochemical activity, and photosensitized chlorhydric acid (QNC) efficacy in a rice rotation system. Impact. The results showed that under the rice-vegetable rotation mode, compared with the single application of chemical fertilizers, the humification degree and molecular weight of HA in the soil with organic fertilizers were reduced, but the number of oxygen-containing functional groups and the photogenerated free radicals (HO -), singlet oxygen radicals (¹O2) and the ability to photosensitize QNC; while the molecular weight of FA in the soil with organic fertilizers increased, the number of redox functional groups and the photogenerated HO. ¹O2 and reduced ability to photosensitize QNC. Under the rice-shrimp rotation mode, compared with the single application of chemical fertilizers, the application of organic-inorganic fertilizers increased the degree of humification, molecular weight, number of redox functional groups and oxygen-containing functional groups of soil HA, and its photogenerated 1O2 reduced its ability to photogenerate HO • and photosensitize QNC; while for soil FA, the organic-inorganic fertilizer mode increased its humification degree and molecular weight, Reduced its ability to photogenerate HO • ¹O2 and photosensitize QNC. In summary, organic fertilizer can significantly improve the photochemical activity and photosensitization efficiency of humic acid, and further promote the photodegradation of QNC in the environment.
- Subjects
ORGANIC fertilizers; FERTILIZER application; HUMIFICATION; FUNCTIONAL groups; ACID soils
- Publication
Yingyong Shengtai Xuebao, 2023, Vol 34, Issue 8, p2178
- ISSN
1001-9332
- Publication type
Article
- DOI
10.13287/j.1001-9332.202308.014