Soil quality decrease over 13 years of agricultural production
| Autor: | Osvaldo Pérez, Andrés Beretta-Blanco, Leonidas Carrasco-Letelier |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Soil test
business.industry Soil Science 04 agricultural and veterinary sciences Soil carbon 010501 environmental sciences 01 natural sciences Soil quality Agronomy Agriculture Soil pH Soil water 040103 agronomy & agriculture Food processing 0401 agriculture forestry and fisheries Environmental science sense organs Agricultural productivity business Agronomy and Crop Science 0105 earth and related environmental sciences |
| Zdroj: | Nutrient Cycling in Agroecosystems. 114:45-55 |
| ISSN: | 1573-0867 1385-1314 |
| DOI: | 10.1007/s10705-019-09990-3 |
| Popis: | Soils are a key issue in the management of global environmental changes and food supply. The goal of this work was to characterize the soil changes that were promoted by agriculture in Uruguay in the period 2002–2014. We analysed the association between pH, Ca2+, Mg2+, K+, Na+ and soil organic carbon (SOC) and its tendency through the years of soil analysis database 2002–2014 that belong to Experimental Station Alberto Boerger INIA La Estanzuela (Colonia, Uruguay). During the study period, the average soil pH, SOC, and exchangeable base content across the archive sample set were reduced. The exchangeable K+ content decreased by 0.04 mmol kg−1 year−1 with the increase in grain production. The SOC decreased by 0.43 mg (g year)−1 even when most agricultural activity followed a no-tillage system. A reduction of 0.02 units of pH per year also occurred. If these changes continue in the future, agricultural soils will significantly decrease their food production potential, and will not be adequate for sustainable crop production. |
| Databáze: | OpenAIRE |
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