2015
DOI: 10.7127/rbai.v9n300276
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Influência da difusividade e condutividade hidráulica na infiltração de água em um latossolo vermelho sob diferentes sistemas de cultivo

Abstract: RESUMOObjetivou-se com este estudo avaliar a difusividade e a condutividade hidráulica saturada e não saturada em um Latossolo Vermelho Distroférrico e o seu impacto na infiltração de água no sistema de plantio convencional e direto com a cultura do milho. O estudo foi realizado em áreas localizadas no Instituto Federal Goiano -Câmpus Rio Verde, GO. Tratamentos: 1) Sistema plantio convencional; 2) Sistema de plantio direto. O delineamento experimental foi inteiramente casualizado com oito repetições. A metodol… Show more

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“…The hydraulic diffusivity (HD) minimum (approximately zero) it was verified in the logarithmic pressure head (LPH) of 4.01, 3.87, 3.95, 3.69 and 4.01 cm in the water replacement of 0, 25, 50, 75 and 100% with fertirrigation and in the LPH of 3.84, 4.05, 3.69, 3.88 and 3.95 cm in the water replacement of 0, 25, 50, 75 and 100%, without fertirrigation, respectively (Figure 1). According to Cunha et al (2015) the initial hydraulic diffusivity in the no-tillage system was 16% higher than the conventional crop diffusivity, this difference has not changed much with the increase of the hydraulic load.…”
Section: Resultsmentioning
confidence: 90%
“…The hydraulic diffusivity (HD) minimum (approximately zero) it was verified in the logarithmic pressure head (LPH) of 4.01, 3.87, 3.95, 3.69 and 4.01 cm in the water replacement of 0, 25, 50, 75 and 100% with fertirrigation and in the LPH of 3.84, 4.05, 3.69, 3.88 and 3.95 cm in the water replacement of 0, 25, 50, 75 and 100%, without fertirrigation, respectively (Figure 1). According to Cunha et al (2015) the initial hydraulic diffusivity in the no-tillage system was 16% higher than the conventional crop diffusivity, this difference has not changed much with the increase of the hydraulic load.…”
Section: Resultsmentioning
confidence: 90%