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Fertilization Regulates Grape Yield and Quality in by Altering Soil Nutrients and the Microbial Community

文献类型： 外文期刊

作者： Zhu, Qianqian 1 ; Xie, Xiangwen 2 ; Xu, Yongmei 1 ;

作者机构： 1.Natl Soil Qual Aksu Observat & Expt Stn, Baicheng 842300, Peoples R China

2.Xinjiang Acad Agr Sci, Res Inst Soil Fertilizer & Agr Water Conservat, Urumqi 830091, Peoples R China

关键词： fragile ecology; fertilization; grape yield; grape quality; soil nutrients; soil microorganism

期刊名称：SUSTAINABILITY （ 影响因子：3.889； 五年影响因子：4.089 ）

ISSN：

年卷期： 2022 年 14 卷 17 期

页码：

收录情况： SCI

摘要： Rational fertilization is a win-win strategy for rural incomes and environmental restoration in ecologically fragile regions. However, the long-term cumulative grape productivity response to soil fertility has rarely been quantified. Here, long-term fertilization experiments (over 15 years) in the desert-oasis transitional zone of Sinkiang, China, were used to evaluate the interactions among grape yield, quality, fertilization, soil nutrients, and microbial communities. There were five treatments, as follows: CK0 (no planting and no fertilizing); NP (synthetic nitrogen and phosphorus); M (manure only); NPM1 (0.25 times NP and 0.33 times M); and NPM2 (NP and 0.5 times M). The grape yield increased with the application of total nitrogen. The soluble solids and reducing sugar contents had significant positive linear correlations with grape yield, but the opposite trend was found between grape yield and titratable acidity and tannin contents. The redundancy analysis showed that fertilization, soil nutrients (soil organic carbon, available nitrogen, and dissolved organic nitrogen), and microbial communities (ratio of fungi to bacteria, ratio of Gram-negative bacteria to Gram-positive bacteria, and total phospholipid fatty acids) accounted for 31.9%, 19.7%, and 26.8% of the grape yield and nutritional ingredients, respectively. The path analysis identified that fertilization, soil nutrients, and the microbial communities were significantly positively associated with the grape yield, soluble solids, and reducing sugars, while their associations with titratable acidity, tannins, and phenols were significantly negative. These results suggested that fertilization is a viable strategy for regulating grape yields and grape quality because it alters soil fertility in ecologically fragile regions.

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