Effects of Biochar Application on Tomato Yield and Fruit Quality: A Meta-Analysis

Yang Lei, Lihong Xu, Minggui Wang, Sheng Sun, Yuhua Yang and Chao Xu ()
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Yang Lei: College of Horticulture, Shanxi Agricultural University, Taiyuan 030031, China
Lihong Xu: Center for Agricultural Genetic Resources Research, Shanxi Agricultural University, Taiyuan 030024, China
Minggui Wang: Center for Agricultural Genetic Resources Research, Shanxi Agricultural University, Taiyuan 030024, China
Sheng Sun: College of Horticulture, Shanxi Agricultural University, Taiyuan 030031, China
Yuhua Yang: Center for Agricultural Genetic Resources Research, Shanxi Agricultural University, Taiyuan 030024, China
Chao Xu: Sci-Tech Information and Strategic Research Center of Shanxi Province, Taiyuan 030031, China

Sustainability, 2024, vol. 16, issue 15, 1-19

Abstract: Applying biochar to tomato cultivation presents a beneficial strategy that can enhance both yield and fruit quality, crucial for sustainable agricultural practices. However, a review of the existing literature on the effects of biochar indicates a significant variability in outcomes, suggesting the need for a more nuanced understanding of biochar application in relation to soil and biochar conditions. This study conducts a meta-analysis on the literature published before March 2024 to investigate the impacts of biochar properties, agricultural practices, and soil properties on the yield and fruit quality of tomato. The results indicated that biochar application significantly increased tomato yield by 29.55%, total soluble solids (TSS) by 4.28%, and vitamin C (VC) by 6.77% compared to control treatments without biochar, especially at higher application rates. However, the benefits may wane over time due to biochar aging in the soil, requiring periodic replenishment. The type of biochar and pyrolysis temperature, particularly wood and straw biochar pyrolyzed at 401–500 °C, were found to be most effective for boosting yield and quality. Additionally, initial soil properties, including soil organic matter, pH, and nutrient levels, interact with biochar to influence outcomes, with biochar being particularly beneficial for soils with a high bulk density and low soil organic matter (SOM) or nutrient deficiencies. This study underscores the potential of biochar as a multifaceted strategy in tomato cultivation, enhancing not only yield but also the nutritional value of the fruit, while simultaneously improving soil health.

Keywords: biochar; meta-analysis; tomato; yield; fruit quality (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
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