Yangzhou Xiang, Jun Luo, Ying Liu, Yang Luo, Nanthi Bolan, Jing Fan, Narasinha J. Shurpali, Hem Raj Bhattarai, Kadambot H. M. Siddique, Yuan Li
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引用次数: 0
Abstract
The development of sustainable agricultural practices in Karst regions faces significant challenges due to inherent soil limitations and complex terrain characteristics. This study investigated the effects of biochar-based fertilizers on soil properties and fruit quality of chestnut rose (Rosa roxburghii) in Southwest China's Karst region. Three biochar types derived from R. roxburghii pomace (RPB), discarded mushroom substrate (DMB), and chili straw (CSB) were evaluated at five application rates in combination with conventional fertilizers (with nitrogen, phosphorus, and potassium). Results revealed that the RPB4 treatment (70% biochar) significantly enhanced soil moisture content (61.37%), organic matter content (22.73%), and available nitrogen (22.74%) compared to controls. Fruit quality parameters showed significant improvements under optimal biochar treatments, with vitamin C content increasing by 67.94% (DMB4), total flavonoids by 120.06% (RPB4), and soluble sugars by 148.69% (RPB4). Structural equation modeling revealed significant direct effects of biochar application on soil water content (Standardized path coefficient = 0.60) and pH (0.80). Principal component analysis identified RPB4 as the optimal treatment combination, explaining 69.328% of total variance in soil and fruit properties. These findings provide quantitative evidence for the efficacy of biochar-based fertilizers in improving both soil quality and fruit characteristics in Karst agricultural systems, while establishing optimal application rates for sustainable orchard management.
期刊介绍：
Food and Energy Security seeks to publish high quality and high impact original research on agricultural crop and forest productivity to improve food and energy security. It actively seeks submissions from emerging countries with expanding agricultural research communities. Papers from China, other parts of Asia, India and South America are particularly welcome. The Editorial Board, headed by Editor-in-Chief Professor Martin Parry, is determined to make FES the leading publication in its sector and will be aiming for a top-ranking impact factor.
Primary research articles should report hypothesis driven investigations that provide new insights into mechanisms and processes that determine productivity and properties for exploitation. Review articles are welcome but they must be critical in approach and provide particularly novel and far reaching insights.
Food and Energy Security offers authors a forum for the discussion of the most important advances in this field and promotes an integrative approach of scientific disciplines. Papers must contribute substantially to the advancement of knowledge.
Examples of areas covered in Food and Energy Security include:
• Agronomy
• Biotechnological Approaches
• Breeding & Genetics
• Climate Change
• Quality and Composition
• Food Crops and Bioenergy Feedstocks
• Developmental, Physiology and Biochemistry
• Functional Genomics
• Molecular Biology
• Pest and Disease Management
• Post Harvest Biology
• Soil Science
• Systems Biology
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