Bio:
Email: phh1013@163.com
彭豪豪(1999—),男,硕士研究生,主要研究方向为土壤与植物营养生态学;phh1013@163.com
为实现黄花菜叶片的高值化利用及产业绿色可持续发展,开展了生物炭与不同肥料配施对黄花菜叶片品质影响的盆栽试验。试验共设置不施肥,单施生物炭、有机肥、复合肥,生物炭分别与有机肥、复合肥配施等6个处理,考察了不同处理对土壤肥力、黄花菜叶片营养代谢、功能品质及抗氧化活性的影响,并结合相关性分析与主成分分析进行综合评价。结果表明:不同施肥模式对土壤有机碳、氮、磷、钾及无机氮形态均存在显著影响,生物炭与外源肥料配施可充分发挥养分固持与缓释效应; 生物炭与有机肥配施处理表现最优,可显著提升叶片全磷、全钾及总糖含量,促进黄酮、多酚等功能性成分积累,增强叶片对1, 1-二苯基-2-三硝基苯肼(DPPH)、2, 2′-联氮-双-3-乙基苯并噻唑啉-6-磺酸(ABTS)自由基的清除能力。生物炭与有机肥配施是适配黄花菜叶片高值化利用的最优施肥模式。
To achieve the high-value utilization of Hemerocallis citrina Baroni leaves and promote the green and sustainable development of the industry, a pot experiment is conducted to investigate the effects of combined application of biochar and different fertilizers on the quality of Hemerocallis citrina Baroni leaves. Six treatments are established: no fertilization, biochar alone, organic fertilizer alone, compound fertilizer alone, biochar combined with organic fertilizer, and biochar combined with compound fertilizer. The impacts of different treatments on soil fertility, nutrient metabolism, functional quality, and antioxidant activity of Hemerocallis citrina Baroni leaves are examined. A comprehensive evaluation is performed using correlation analysis and principal component analysis. The results show that different fertilization treatments significantly influenced soil organic carbon, nitrogen, phosphorus, potassium, and inorganic nitrogen forms. The combined application of biochar with exogenous fertilizers effectively exert nutrient retention and slow-release effects. The combined application of biochar and organic fertilizer treatment has the best performance, significantly increasing the contents of total phosphorus, total potassium, and total sugars in the leaves, promoting the accumulation of functional components such as flavonoids and polyphenols, and enhancing the 1, 1-diphenyl-2-picrylhydrazyl (DPPH) and 2, 2′-azinobis-(3-ethylbenzthiazoline-6-sulphonate) (ABTS) free radical scavenging capacity of the leaves. The combined application of biochar and organic fertilizer is the optimal fertilization model for the high-level utilization of Hemerocallis citrina Baroni leaves.
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