Paulo Leonel Libardi

• Abstract

  Considering that the current knowledge on the response of the sugar cane yield to the N and S fertilization was obtained with experiments in only one cycle: plant cane or ratoon crop; that the sugar cane is a semi-perennial grass and as such it is dependent of the energy and nutrient reserves of the root system (roots and rhizomes) in order to sustain the vigor of ratoon plants; consider…

  Sugar cane yield in subsequent cycles associated to the residual effect of N and S and their transformations in the soil, on conservation system, AP.TEM
• Cláudia Wagner riddle | university guelph - Canada, AV.EXT
• Characterization of soil water status using nuclear methodology., AR.EXT

• Abstract

  The economic development of Brazil is governed by the increasing agricultural production, associated with the conservative practices. The no-tillage system (NT) is the soil management practices that bring together the broadest set of precepts for conservation agriculture. Areas under NT, however, have shown two completely different soils layers: a surface, around 0-0.07 m, with physical a…

  Factors of structural degradation in clayey soils under "no-tillage", BP.DR

• Abstract

  Water and soil are the most important natural resources of our planet and the concern for their conservation must be permanent. Thus, the adoption of a more sustainable agriculture implies the efficient and responsible use of these resources. The comprehension of water movement within the soil profile plays a very important role in this context. The hydraulic properties of interest are th…

  Soil water retention and conduction properties assessed in field conditions, BP.DR

• Abstract

  Soil is one of the most important natural resources of our planet, causing concern regarding its conservation. Soil quality can be defined as the capacity of each soil to perform its function in an ecosystem, within limits based on its behavior in an ideal system. This quality can be evaluated by measuring some soil attributes or properties. The physical quality affects chemical and biolo…

  Retention curve on avaluation of soil physical quality, BP.MS

(Only some records are available in English at this moment)

• Abstract

  Structural degradation on the subsurface layer of soils reduces the effectiveness of no-till (NT) as a sustainable soil practice in crop production systems. In the PhD project (process 2015/12934-3), we are studying key factors that may influence soil structural degradation in Oxisols under NT. Results obtained have shown that Oxisols under NT may exhibit structural degradation when compa…

  Evaluating the influence of soil mineralogy and organic matter quality on the structural degradation of oxisols under no-till using advanced and non-conventional techniques, BE.EP.DR