Penetration resistance: An effective indicator for monitoring soil compaction in pastures
| Autor: | André A. Souza, Flávia R. Sales, Everton Geraldo de Morais, Bruno Grossi Costa Homem, Pedro Antônio Namorato Benevenute, Isabela C. F. Vasques, Eduardo da Costa Severiano, Dione P. Cardoso, Bruno Montoani Silva, Daniel Rume Casagrande |
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| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
geography geography.geographical_feature_category Ecology biology General Decision Sciences 010501 environmental sciences biology.organism_classification 010603 evolutionary biology 01 natural sciences Brachiaria Soil quality Pasture Agronomy Pedotransfer function Soil retrogression and degradation Arachis pintoi Environmental science Trampling Water content Ecology Evolution Behavior and Systematics 0105 earth and related environmental sciences |
| Zdroj: | Ecological Indicators. 117:106647 |
| ISSN: | 1470-160X |
| Popis: | Compaction, often promoted by animal trampling and loss of forage plants, is a main cause of soil degradation in pastures. Our objectives were to evaluate various pasture management strategies for maintaining soil physical quality and to evaluate penetration resistance as an indicator of soil compaction in pastures. For each strategy, the goal was to maintain or extend least limiting water range (LLWR) and soil compressive behavior. Three treatments [Brachiaria (Br); Br intercropped with forage peanut (Arachis pintoi) (Br + L); and Br fertilized with 150 kg N ha−1 (Br + N) were compared to a native forest reference (Ref) in four pasture areas in Brazil. Pasture management strategy did not significantly influence LLWR, but the Br + N treatment resulted in greater soil degradation evidenced by a lower LLWR. These results are useful for improving pedotransfer functions and decision aides that predict physical–mechanical soil quality, impact on vegetative cover, and the appropriate animal carrying capacity for specific pasture areas. They also confirm that soil moisture and penetration resistance are effective for calculating load carrying capacity, factors that help with decision making regarding implementation of new management practices in pasture areas. |
| Databáze: | OpenAIRE |
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