Combined Application of Coffee Husk Compost and Inorganic Fertilizer to Improve the Soil Ecological Environment and Photosynthetic Characteristics of Arabica Coffee
文献类型： 外文期刊
作者： Jiang, Zeyin 1 ; Lou, Yuqiang 4 ; Liu, Xiaogang 1 ; Sun, Wenyan 1 ; Wang, Haidong 1 ; Liang, Jiaping 1 ; Guo, Jinjin 1 ; Li, Na 1 ; Yang, Qiliang 1 ;
作者机构： 1.Kunming Univ Sci & Technol, Fac Modern Agr Engn, Kunming 650500, Peoples R China
2.Kunming Univ Sci & Technol, Yunnan Prov Field Sci Observ & Res Stn Water Soil, Kunming 650500, Peoples R China
3.Kunming Univ Sci & Technol, Yunnan Prov Key Lab Highefficiency Water Use & Gre, Kunming 650500, Peoples R China
4.Yunnan Acad Agr Sci, Inst Trop & Subtrop Cash Crops, Baoshan 678000, Peoples R China
关键词： arabica coffee; coffee husk; combined application of organic and inorganic fertilizers; soil ecological environment; comprehensive evaluation
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 5 期
页码：
收录情况： SCI
摘要： Excessive use of chemical fertilizers deteriorates the soil environment and limits the normal growth of Arabica coffee trees. In order to identify the optimal coupling mode of chemical fertilizer application and biomass return that enhances the soil ecological environment and promotes the photosynthetic efficiency of Arabica coffee, this study investigated the impacts of three levels of inorganic fertilizers (FL: 360 kg.ha (-1), FM: 720 kg.ha (-1), and FH: 1080 kg.ha (-1)) and three types of coffee husk returning methods (C-B: coffee husk biochar, C-C: coffee husk compost, C-A: coffee husk ash) on the soil fertility, microbial amount, enzyme activity, and photosynthetic characteristics of the Arabica coffee root zone. The entropy weight-TOPSIS method was employed to evaluate the comprehensive benefits. The results showed that FM had the biggest effect on improving soil fertility, microorganisms, and enzyme activities compared with F-L and F-H. Moreover, compared to C-A, C-C significantly increased soil organic carbon, organic matter, and total nitrogen content. C-C significantly enhanced the activities of soil phosphatase and urease, respectively, by 29.84% and 96.00%, and significantly increased the amount of bacteria, fungi, and actinomycetes by 62.15%, 68.42%, and 46.21%, respectively. The net photosynthetic rate (P-n), transpiration rate (Tr), and stomatal conductance (G(s)) of FMCC were significantly higher than those of other treatments. The comprehensive benefit evaluation of the soil environment and photosynthetic characteristics by the entropy weight-TOPSIS method ranked FMCC first. Therefore, FMCC was the optimal coupling mode for fertilizer application and the coffee husk returning method. The findings of this study not only provide scientific guidance for fertilizing Arabica coffee but also clarify the proper approach to returning coffee husk to the field, thereby improving soil ecology and promoting green and efficient production of specialty crops.
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