用葡萄渣残渣改良的葡萄园土壤中的碳和氮储量

Agronomy Pub Date : 2024-09-08 DOI:10.3390/agronomy14092055
Allan Augusto Kokkonen, Samuel Schemmer, Rian Brondani, João Francisco Fornari, Daniéle Gonçalves Papalia, Elena Baldi, Moreno Toselli, Jean Michel Moura-Bueno, Arcângelo Loss, Tadeu Luis Tiecher, Gustavo Brunetto
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引用次数: 0

摘要

土壤养护管理下的水果作物可以在土壤中固碳,减少温室气体排放。利用葡萄渣残留物作为土壤改良剂为可持续葡萄栽培带来了希望。然而,其增加土壤有机碳(SOC)和氮(N)的实际能力尚不清楚,尤其是在亚热带气候条件下。本研究旨在探讨葡萄渣堆肥和蛭石堆肥能否增加亚热带葡萄园的土壤有机碳(SOC)、全氮(TN)、碳储量和氮储量。位于巴西南部韦拉诺波利斯的两个葡萄园,一个种植 "伊莎贝拉 "品种,另一个种植 "霞多丽 "品种。我们量化了每种条件下不同土层中的 SOC 和 TN 含量,以及两种不同颗粒度组分中的 C 和 N 含量:矿物相关有机物(MAOM)和颗粒有机物(POM)。同时还计算了碳和氮的储量。尽管有潜在的好处,但这两种处理方法都没有提高 SOC、其组分或碳储量。事实上,在 "伊莎贝拉 "葡萄园 0.0 至 0.05 米的土层中,蛭石堆肥被迅速矿化,并消耗了 SOC 及其组分。我们的研究结果表明,经过三年的试验,葡萄渣残留物无法促进亚热带葡萄园的固碳。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Carbon and Nitrogen Stocks in Vineyard Soils Amended with Grape Pomace Residues
Fruit crops under soil conservational management might sequester carbon (C) in soils and mitigate greenhouse gases emissions. Using grape pomace residues as soil amendment holds promise for sustainable viticulture. However, its actual capability to increase soil organic carbon (SOC) and nitrogen (N) is unknown, especially in subtropical climates. This research aims to investigate whether grape pomace compost and vermicompost can increase SOC, total N (TN), and C and N stocks in subtropical vineyards. Two vineyards located in Veranópolis, in South Brazil, one cultivated with ‘Isabella’ and the other with ‘Chardonnay’ varieties, were annually amended with these residues for three years. We quantified SOC and TN in each condition in different soil layers, as well as C and N content in two different granulometric fractions: mineral-associated organic matter (MAOM) and particulate organic matter (POM). C and N stocks were also calculated. Despite potential benefits, neither treatment enhanced SOC, its fractions, or C stocks. In fact, vermicompost was rapidly mineralized and depleted SOC and its fractions in the 0.0 to 0.05 m layers of the ‘Isabella’ vineyard. Our findings indicate that the tested grape pomace residues were unable to promote C sequestration in subtropical vineyards after a three-year period.
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