Municipal solid waste compost (MSWC) is a source of organic C and other nutrients, which, when free from potential contaminants, can be used as a soil amendment. This study was carried out over three years in a vineyard with soil pH close to neutral under an experimental design consisting of two treatments (with and without MSWC). Application of MSWC is currently authorized under national legislation to be used in vineyards, orchards and forests at a maximum rate of 10 t ha⁻¹ year⁻¹. In this study, for experimental purposes, a double rate (20 t ha⁻¹ year⁻¹) was used. The accumulated grape yield increased in the amended plot by 28% and the dry biomass of weeds between rows by 119%. The MSWC significantly increased some relevant soil properties such as organic C, pH, cation exchange capacity (CEC) and extractable P, K and B. The concentration of K increased significantly in several tissues, and the concentration of P decreased. However, the concentration of K, P and other essential nutrients in the leaves remained within their sufficiency ranges. Tissue levels of heavy metals (Cr, Cd, Pb and Ni) did not increase with the MSWC application, and the values in the pulp remained below the limits established for foodstuffs. The results from this study indicate that the continuous application of the MSWC does not seem to be sustainable, because of the risk of causing nutritional disorders. Products with similar composition should therefore be used only on more acidic soils and should never exceed the legally established rates.

中文翻译：

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来自城市固体废物的堆肥的安全使用取决于其成分和应用条件

城市固体废物堆肥 (MSWC) 是有机碳和其他营养物质的来源，当不含潜在污染物时，可用作土壤改良剂。这项研究在一个土壤 pH 值接近中性的葡萄园中进行了三年多，实验设计包括两种处理（有和没有 MSWC）。目前，MSWC 的应用已根据国家立法授权在葡萄园、果园和森林中以 10 t ha ^-1  year ^-1的最大速率使用。在本研究中，出于实验目的，双倍率（20 t ha ^-1 年^-1) 被使用。修正后地块的葡萄累计产量增加了28%，行间杂草的干生物量增加了119%。MSWC显着增加了一些相关的土壤性质，如有机C、pH、阳离子交换容量（CEC）和可提取的P、K和B。K在几个组织中的浓度显着增加，而P的浓度降低。然而，叶片中钾、磷和其他必需营养素的浓度保持在其充足范围内。重金属（Cr、Cd、Pb 和 Ni）的组织水平没有随着 MSWC 的应用而增加，并且纸浆中的值仍然低于食品的规定限值。这项研究的结果表明，MSWC 的持续应用似乎不可持续，因为存在引起营养障碍的风险。