Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Science, East China Normal University, Shanghai, 200241, China.
Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China.
Environ Sci Pollut Res Int. 2022 Apr;29(18):27182-27194. doi: 10.1007/s11356-021-17759-x. Epub 2022 Jan 3.
Organic and bioorganic fertilizers were increasingly used for agricultural soil. However, little is known on what kind of organic fertilizer application strategies can promote grape production well and how appropriate fertilization strategies improve soil properties and shift microbial community. This study investigated the improvement in soil physicochemical properties as well as their relations with microbial community structure and grape quality under different fertilization strategies. Our results found that (bio)organic fertilizer (CF1, CF2, and BF) especially combined application of organic and bioorganic fertilization (CBF) had smaller effects on electrical conductivity (EC) and pH, while it improved soil nutrients including N, P, K, and organic matter (OM) well, thereby promoting the grape quality comparing to the group without any fertilizer (CK) and with chemical fertilizer (NPK). Especially, the concentrations of Cr, Hg, Zn, and Cu were reduced by 13.63%, 12.50%, 12.52%, and 11.75% in CBF, respectively. Additionally, CF1, CF2, and BF, especially CBF, optimized the communities' composition and increased the abundance of some plant probiotics such as Solirubrobacter and Lysobacter. Nevertheless, excessive application of organic fertilizer derived from livestock manure could cause the accumulation of heavy metals such as Zn and Cu in soil and leaves, which could further influence the grape quality. Additionally, the structure of microbial communities was also changed possibly because some bacterial genera showed distinct adaptability to the stress of heavy metals or the utilization capacity of N, P, K, and OM. Our results demonstrated that combined application of organic and bioorganic fertilization showed a great influence on soil physicochemical properties, whose positive changes could further optimize microbial communities and facilitate the promotion of grape quality.
有机和生物有机肥料越来越多地用于农业土壤。然而，对于哪种有机肥料施用策略可以促进葡萄生产，以及如何适当的施肥策略可以改善土壤性质和改变微生物群落，知之甚少。本研究调查了不同施肥策略下土壤理化性质的改善及其与微生物群落结构和葡萄品质的关系。我们的结果发现，（生物）有机肥（CF1、CF2 和 BF），特别是有机和生物有机肥的组合施用（CBF）对电导率（EC）和 pH 的影响较小，而对包括 N、P、K 和有机质（OM）在内的土壤养分的改善效果较好，从而促进了葡萄品质的提高，与不施肥（CK）和施化肥（NPK）相比。特别是，Cr、Hg、Zn 和 Cu 的浓度分别减少了 13.63%、12.50%、12.52%和 11.75%。此外，CF1、CF2 和 BF，特别是 CBF，优化了群落的组成，增加了一些植物益生菌如 Solirubrobacter 和 Lysobacter 的丰度。然而，过量施用来自家畜粪便的有机肥料可能会导致土壤和叶片中重金属如 Zn 和 Cu 的积累，这可能会进一步影响葡萄的品质。此外，微生物群落的结构也可能发生变化，因为一些细菌属表现出对重金属胁迫或对 N、P、K 和 OM 的利用能力的明显适应性。我们的结果表明，有机和生物有机肥料的组合施用对土壤理化性质有很大的影响，其积极的变化可以进一步优化微生物群落，促进葡萄品质的提高。
