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	Provedor de dados Rev. Bras. Ciênc. Solo (2) Autor Bramorski,Julieta (2) Crestana,Silvio (2) De Maria,Isabella C. (1) Silva,Renato Lemos e (1) Trivelin,Paulo Cesar Ocheuze (1) Palavra-chave 15N (1) Laser profile scanner (1) Rainfall simulation (1) Roughness index (1) Simulated rainfall (1) Water erosion (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2015 (1) 2012 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última NITROGEN LOSS BY EROSION FROM MECHANICALLY TILLED AND UNTILLED SOIL UNDER SUCCESSIVE SIMULATED RAINFALLS Rev. Bras. Ciênc. Solo Bramorski,Julieta; Trivelin,Paulo Cesar Ocheuze; Crestana,Silvio. The description of the fate of fertilizer-derived nitrogen (N) in agricultural systems is an essential tool to enhance management practices that maximize nutrient use by crops and minimize losses. Soil erosion causes loss of nutrients such as N, causing negative effects on surface and ground water quality, aside from losses in agricultural productivity by soil depletion. Studies correlating the percentage of fertilizer-derived N (FDN) with soil erosion rates and the factors involved in this process are scarce. The losses of soil and fertilizer-derived N by water erosion in soil under conventional tillage and no tillage under different rainfall intensities were quantified, identifying the intervening factors that increase loss. The experiment was carried... Tipo: Info:eu-repo/semantics/article Palavras-chave: 15N; Rainfall simulation; Water erosion. Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000401204 Relations between soil surface roughness, tortuosity, tillage treatments, rainfall intensity and soil and water losses from a red yellow latosol Rev. Bras. Ciênc. Solo Bramorski,Julieta; De Maria,Isabella C.; Silva,Renato Lemos e; Crestana,Silvio. The soil surface roughness increases water retention and infiltration, reduces the runoff volume and speed and influences soil losses by water erosion. Similarly to other parameters, soil roughness is affected by the tillage system and rainfall volume. Based on these assumptions, the main purpose of this study was to evaluate the effect of tillage treatments on soil surface roughness (RR) and tortuosity (T) and to investigate the relationship with soil and water losses in a series of simulated rainfall events. The field study was carried out at the experimental station of EMBRAPA Southeastern Cattle Research Center in São Carlos (Fazenda Canchim), in São Paulo State, Brazil. Experimental plots of 33 m² were treated with two tillage practices in three... Tipo: Info:eu-repo/semantics/article Palavras-chave: Simulated rainfall; Laser profile scanner; Roughness index. Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832012000400023 Registros recuperados: 2 Primeira ... 1 ... Última

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