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Tempo de implantação do sistema plantio direto e propriedades físico-mecânicas de um latossolo
(Universidade Federal de Santa Maria, 2009-12-23)
Which the effect of no-tillage system on the soil physical and mechanical properties along the time? With this question, the objective this study was to evaluate the effect of the no-tillage system along the time on the ...
Dinâmica do nitrogênio sob sistema plantio direto e parâmetros para o manejo da adubação nitrogenada no milho
(Universidade Federal de Santa Maria, 2009-03-27)
Among the several essential nutrients in the nutrition of the maize, without a doubt, the nitrogen (N) is one of the most important. However, most of the time, the amount naturally available in the soil is insufficient ...
Sistema pedológico em um ambiente antropizado da depressão central do RS
(Universidade Federal de Santa Maria, 2009-08-28)
The present work was accomplished in a slope with a pedological system composed of Red Argisol/Gleysol, in a pasture area located in an unit of agricultural production in the municipal district of Santa Maria - RS. It aimed ...