| 摘要 |
[Objectives] This study was conducted to investigate the effects of biochar-based fertilizer on high yield and quality of green pepper (Zanthoxylum armatum var. novemfolius) and soil nutrient status. [Methods] With green pepper and pepper field soil as the research subjects, four treatments were set up, namely, conventional fertilization (T1), conventional fertilization + biochar (T2), biochar-based fertilizer 1 (T3), and biochar-based fertilizer 2 (T4). [Results] The application of biochar-based fertilizer increased green pepper yield by 9.37%-51.12%, with the order of increase being T4 > T3 > T2 > T1. In terms of soil nutrients, biochar-based fertilizer raised soil pH by 6.67%-53.33%, with the order of increase being T3 > T4 > T2 > T1. The initially strongly acidic soil gradually shifted to weakly acidic and approached neutral, indicating significantly improved soil acidity. The application of biochar-based fertilizer increased the contents of soil organic matter, available nitrogen, available phosphorus, available potassium, available copper, available zinc, available iron, and available manganese. It significantly enhanced green pepper yield, improved soil acidity, and elevated soil nutrient levels. Considering yield, nutrient uptake, and soil nutrient content, biochar-based fertilizer 2 (T4) was identified as the optimal treatment. [Conclusions] This study provides a theoretical basis for improving green pepper yield and soil amendment. |
