Cover crops influence the physical hydric quality of a tropical sandy soil under no-tillage cotton cropping DOI Creative Commons
Pedro Luan Ferreira da Silva, Cássio Antônio Tormena, Fábio Rafael Echer

et al.

Revista Brasileira de Ciência do Solo, Journal Year: 2024, Volume and Issue: 48

Published: Jan. 1, 2024

ABSTRACT Reduced stability and structural resilience expose sandy soils to physical degradation under intensive production systems. This study aimed evaluate the influence of different cover crops (CC) no-tillage system (NTS) cotton cropping, grown either individually or in combination, on soil quality (SPQ) a loam Oxisol (Latossolo) southeastern Brazil. To quantify effects CC indicators, an experiment randomized blocks design was implemented with treatments: CC1: single cultivation Ruzi grass; CC2: Intercropping Pearl Millet + Ruzigrass; CC3: Velvet bean; Mixture : grass, Control: maintenance spontaneous plants. Undisturbed samples were taken from layers 0.00-0.10, 0.10-0.20, 0.20-0.40 0.40-0.60 m, which determined bulk density (Bd), total porosity (TP), available water (AW), penetration resistance (PR) least limiting range (LLWR). According multivariate analyses, 2 treatment resulted better SPQ compared other treatments. The LLWR, air-filled (θ AFP ), AW responsible for differentiating treatments evaluated. Regardless treatments, values Bd> 1.75 Mg m -3 result loss due significant increase PR decreases LLWR. In 3 Control, there impediment caused by Bd 0.10-0.20 layer, could confinement roots surface, making them more susceptible stress. Soil reached greater than 2.5 MPa contents lower θ PWP most CC3, equivalent , did not exceed 6 MPa, while 10 MPa. Only influenced using CC. moisture is considered crucial maintain below impeding values, determining control this soil.

Language: Английский

Cover crops influence the physical hydric quality of a tropical sandy soil under no-tillage cotton cropping DOI Creative Commons
Pedro Luan Ferreira da Silva, Cássio Antônio Tormena, Fábio Rafael Echer

et al.

Revista Brasileira de Ciência do Solo, Journal Year: 2024, Volume and Issue: 48

Published: Jan. 1, 2024

ABSTRACT Reduced stability and structural resilience expose sandy soils to physical degradation under intensive production systems. This study aimed evaluate the influence of different cover crops (CC) no-tillage system (NTS) cotton cropping, grown either individually or in combination, on soil quality (SPQ) a loam Oxisol (Latossolo) southeastern Brazil. To quantify effects CC indicators, an experiment randomized blocks design was implemented with treatments: CC1: single cultivation Ruzi grass; CC2: Intercropping Pearl Millet + Ruzigrass; CC3: Velvet bean; Mixture : grass, Control: maintenance spontaneous plants. Undisturbed samples were taken from layers 0.00-0.10, 0.10-0.20, 0.20-0.40 0.40-0.60 m, which determined bulk density (Bd), total porosity (TP), available water (AW), penetration resistance (PR) least limiting range (LLWR). According multivariate analyses, 2 treatment resulted better SPQ compared other treatments. The LLWR, air-filled (θ AFP ), AW responsible for differentiating treatments evaluated. Regardless treatments, values Bd> 1.75 Mg m -3 result loss due significant increase PR decreases LLWR. In 3 Control, there impediment caused by Bd 0.10-0.20 layer, could confinement roots surface, making them more susceptible stress. Soil reached greater than 2.5 MPa contents lower θ PWP most CC3, equivalent , did not exceed 6 MPa, while 10 MPa. Only influenced using CC. moisture is considered crucial maintain below impeding values, determining control this soil.

Language: Английский

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