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Simulação da necessidade de irrigação no estado do Rio Grande do Sul para compensar perdas por deficiência hídrica de milho, soja e feijão
(Universidade Federal de Santa Maria, 2004-02-27)
The temporal and spatial variability of the rainfall amount and its distribution is usually the major cause of agricultural yield losses. These variables are responsible for the oscillations in yields of Spring and Summer ...
Dinâmica da matéria orgânica em agroecossistemas submetidos a queima e manejos dos resíduos culturais
(Universidade Federal de Santa Maria, 2004-07-26)
The use of fire as pasture management has been object of intense argue, although it has many effects in soil and environment quality. In the ground, the most expressive effect occurs on the organic matter (OM), by combustion, ...
Configuração da rede de drenagem e modelado do relevo: conformação da paisagem na zona de transição da bacia do Paraná na depressão central do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2004-02-26)
This work presents the relief modeling as a cause and consequence of soil erosion. It is in the space, which man has always depended on to live, that the biotics, non-biotics and social-economic components interaction ...