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Estoque de carbono em áreas pioneiras de plantio direto no Rio Grande do Sul
(Universidade Federal de Santa Maria, 2014-02-26)
The change in land use is an important factor affecting soil C stocks and their distribution in the soil profile. The conversion of native vegetation (NV) for agricultural systems causes a sharp decline in carbon storage ...
Dejetos de suínos: produção de culturas, efeitos na matéria orgânica e na transferência de formas de fósforo
(Universidade Federal de Santa Maria, 2014-04-23)
Swine production is an activity widely developed in southern Brazil that generates large volumes of
manure, which are normally used as sources of nutrients in grain crops and pastures. However, successive
applications ...