Now showing items 1-10 of 8915
Use of the HDS system (hydric depuration with soils) associated to other constructed wetlands techniques for public water supply
Two projects of water treatment for public water supply were developed and operated by using combined systems of constructed wetlands. One of the projects was carried out in the town of Analandia, Sao Paulo, Brazil and ...
Propriedades físicas e indicador de qualidade de um latossolo vermelho submetido a diferentes sistemas de uso e manejo
The conventional system for soil management and preparation has the intensive mechanization as its basic principle and that changes soil properties, especially physical ones, faster and significantly. This study aimed to ...
Water table effects on bean yield and nitrate distribution in the soil profile
In order to evaluate the bean yield under different water table levels as well as the moisture and nitrate distribution in the soil profile, a field experiment was carried out in the experimental area of the College of ...
Study of the water retention properties of a tropical soil
(NATL RESEARCH COUNCIL CANADA-N R C RESEARCH PRESS, 2009)
Some peculiarities of water retention in a tropical lateritic soil of clayey nature are presented and discussed. The typical soil microstructure is shown through thin-layer plates emphasizing soil microaggregation and pore ...
Spatial Variability of Some Soil Physical Properties in Three Soils of Sao Paulo, Brazil.
(Pesquisa Agropecuaria Brasileira, Brasilia, v.27, n.2, p.333-341, fev.1992, 2011)
Soil water surplus and ENSO events during the last humid period in Argentine Pampean flatlands
(Inderscience Enterprises, 2009-01)
Daily soil water balances are estimated for the period 1951-2006 in the Pampean flatlands. Daily soil water surplus is the major output with their annual trends, being analysed because of their harmful effects on crop ...
Plant nutrients in a degraded soil treated with water treatment sludge and cultivated with grasses and leguminous plants
The objective of this work was to evaluate rates for applications of water treatment sludge (WTS) as a nutrient source for grasses and leguminous plants cropped in a soil degraded by tin mining in the Amazon Region (Natural ...