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The Co-Application of PGPR and Biochar Enhances the Production Capacity of Continuous Cropping Peppers in the Karst Yellow Soil Region of Southwest China

文献类型： 外文期刊

作者： Zhang, Meng 1 ; Liu, Yanling 1 ; Wei, Quanquan 1 ; Gou, Jiulan 1 ; Liu, Lingling 1 ; Gu, Xiaofeng 1 ; Wang, Ming 2 ;

作者机构： 1.Guizhou Acad Agr Sci, Inst Soil & Fertilizer, Guiyang 550006, Peoples R China

2.Guizhou Minzu Univ, Coll Ecoenvironm Engn, Guiyang 550025, Peoples R China

关键词： plant growth-promoting rhizobacteria; biochar; yield and quality; fertilizer efficiency; economic benefits

期刊名称：HORTICULTURAE （ 影响因子：3.1； 五年影响因子：3.4 ）

ISSN：

年卷期： 2023 年 9 卷 10 期

页码：

收录情况： SCI

摘要： In recent years, a significant impediment to the advancement of China's agricultural sector is the noteworthy challenge posed by diminished crop yields and quality due to ongoing continuous cropping obstacles. Numerous studies have consistently showcased the potential of plant growth-promoting rhizobacteria (PGPR) and biochar in augmenting the alleviation of continuous cropping barriers. Nevertheless, the potential of PGPR and biochar to remediate and improve continuous cropping peppers in the karst yellow soil area remains unclear. A 2-year field experiment was implemented to examine the impact of PGPR and biochar, when applied alone or in combination, on the production potential of continuous cropping peppers. The results revealed that PGPR and biochar significantly elevated the yield of fresh and dry pepper compared with TF treatment. The utilization of PGPR and biochar resulted in an augmentation of free amino acids, soluble sugar, and vitamin C content in pepper fruits, but a reduction in the nitrate content, which proved advantageous in enhancing the overall quality of peppers. Furthermore, the use of PGPR and biochar demonstrated significant benefits in enhancing NPK accumulation, fertilizer utilization, and economic efficiency. Nevertheless, the co-application of PGPR and biochar yielded significantly better results compared to their individual application. In conclusion, the utilization of PGPR and biochar demonstrated a favorable impact on the productivity and economic benefits of continuous cropping peppers. The simultaneous application of PGPR and biochar represents a promising approach to enhancing yield and improving the quality of peppers in the karst yellow soil region of Southwest China.

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