Chemical Fertilizer Reduction Combined with Biochar Application Ameliorates the Biological Property and Fertilizer Utilization of Pod Pepper
文献类型： 外文期刊
作者： Zhang, Meng 1 ; Liu, Yanling 1 ; Wei, Quanquan 1 ; Liu, Lingling 1 ; Gu, Xiaofeng 1 ; Gou, Jiulan 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： partial substitution; yield of fresh and dry pepper; nutrient accumulation; recovery efficiency of fertilizer; karst areas of southwest China
期刊名称：AGRONOMY-BASEL （ 影响因子：3.7； 五年影响因子：4.0 ）
ISSN：
年卷期： 2023 年 13 卷 6 期
页码：
收录情况： SCI
摘要： Biochar is frequently utilized as a helpful amendment to sustain agricultural productivity. However, it remains uncertain whether biochar can effectively replace chemical fertilizers, especially in karst regions. To investigate the effects of co-applying biochar and chemical fertilizer on the biological characteristics and fertilizer uptake of pod peppers, as well as to determine the optimal ratio of biochar to chemical fertilizers, a two-year field experiment was conducted in southwest China. The results showed that, compared to the locally typical chemical fertilizer treatment (CF), the combined application of biochar and chemical fertilizer significantly increased the yield of both fresh and dry pod pepper. Chemical fertilizer reduction and biochar application also ameliorated fruit quality, increased nutrient accumulation, and improved fertilizer utilization efficiency. What is more, although the employment of biochar made production costs higher, the reduction in chemical fertilizers and the increase in yield improved economic efficiency, especially in the CF70B treatment (70%CF + biochar). In conclusion, moderate amounts of biochar instead of chemical fertilizers may be a valid nutrient management strategy for pod pepper in the karst mountain areas, which is beneficial for maintaining yield stability, improving quality, and increasing net income.
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