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| Bertol,Ildegardis; Ramos,Roger Robert; Barbosa,Fabrício Tondello; Ramos,Julio César; Bandeira,Douglas Henrique; Tanaka,Mitsui Shinosaka. |
| The cropping system influences the interception of water by plants, water storage in depressions on the soil surface, water infiltration into the soil and runoff. The aim of this study was to quantify some hydrological processes under no tillage cropping systems at the edge of a slope, in 2009 and 2010, in a Humic Dystrudept soil, with the following treatments: corn, soybeans, and common beans alone; and intercropped corn and common bean. Treatments consisted of four simulated rainfall tests at different times, with a planned intensity of 64 mm h-1 and 90 min duration. The first test was applied 18 days after sowing, and the others at 39, 75 and 120 days after the first test. Different times of the simulated rainfall and stages of the crop cycle affected... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Runoff rate; Runoff depth; Soil water infiltration. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000200024 |
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| Bertol,Ildegardis; Ramos,Roger Robert; Barbosa,Fabrício Tondello; González,Antonio Paz; Ramos,Julio César; Bandeira,Douglas Henrique. |
| Water erosion is the major cause of soil and water losses and the main factor of degradation of agricultural areas. The objective of this work was to quantify pluvial water erosion from an untilled soil with crop rows along the contour, in 2009 and 2010, on a Humic Dystrupept, with the following treatments: a) maize monoculture; b) soybean monoculture; c) common bean monoculture; d) intercropped maize and bean, exposed to four simulated rainfall tests of on hour at controlled intensity (64 mm h-1). The first test was applied 18 days after sowing and the others; 39, 75 and 120 days after the first test. The crop type influenced soil loss through water erosion in the simulated rainfall tests 3 and 4; soybean was most effective in erosion control in test 3,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Water losses; Soil losses; Simulated rainfall. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832013000200023 |
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| Ramos,Julio César; Imhoff,Silvia Del Carmen; Pilatti,Miguel Ángel; Vegetti,Abelardo Carlos. |
| Plant soil compaction poses a serious problem to agriculture because it produces different types of changes in plant characteristics. No method has been implemented to date to use root morphological changes as indicators of soil compaction levels. Therefore, the aim of the present study was to evaluate whether or not the morphological changes in root apexes of soybean (Glycine max (L.) Merrill) can be used as indicators of soil compaction levels. To this end, a silt-loamy soil material (from a Typic Argiudoll, Esperanza series), sieved through a 2 mm mesh was used and the following soil bulk density levels were determined: 1.1, 1.3 and 1.5 g cm³ for which the corresponding mechanical resistances were < 0.1, 0.5 and 3.5 MPa, respectively. The distance... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycine max; Mechanical impedance; Root indicator; Root hair. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000600013 |
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