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Erosão bruta e produção de sedimentos em bacia hidrográfica sob plantio direto no planalto do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2013-02-28)
The impact of agriculture on water resources has been a focus for problems associated with reservoir siltation, depletion of water quality, reduced infiltration and soil water storage, formation of floods and low water ...
Variabilidade do fósforo extraído causada pela variação analítica nos métodos Mehlich - 1 e 3
(Universidade Federal de Santa Maria, 2013-02-25)
Performing a soil analysis requires a series of operations so a specific element may be conveniently
extracted to be then detected or measured. Protocol methods have been adjusted to facilitate the
execution, however here ...
Seleção de plantas para fitorremediação de solo contaminado com cobre
(Universidade Federal de Santa Maria, 2013-02-27)
Successive applications of Bordeaux syrup, a copper fungicide widely used to control diseases on the vine, contributed to the increase in copper in large areas of vineyards in the Serra Gaúcha. Phytoremediation is a soil ...
Eficiência de fontes fosfatadas aplicadas a lanço e em linha na cultura da soja manejada sob semeadura direta
(Universidade Federal de Santa Maria, 2013-03-11)
The sources of soluble phosphate fertilizers present differences in their chemical and structural composition coming from the increasing production and consumption demand in the last decades. The product of the reactions ...
Atributos químicos do solo e a produtividade de grãos afetados pelo gesso agrícola com e sem irrigação
(Universidade Federal de Santa Maria, 2013-09-30)
Among the benefits of gypsum can cite, improving subsoil, generated by higher Ca, m % and reduction of depth of root crops. This study was conducted on an Oxisol in the city of Boa Vista do Padlock northwestern region of ...
Escarificação e adubação com cama de aves na produção de Tifton 85
(Universidade Federal de Santa Maria, 2013-07-12)
The intensive forage production for hay increases the risk of soil physical degradation and the soil chiseling, with or without organic fertilization, could be alternatives to soil structural recovery. The objective of ...
Variabilidade de classes de solos, atributos morfológicos e físico-hídricos no rebordo do Planalto Meridional
(Universidade Federal de Santa Maria, 2013-07-24)
The edge of the Southern Plateau is an area geomorphologically complex and extremely important social and environmental. These areas are under-researched due to its low agricultural potential. In recent decades, these areas ...
Concentração de argilominerais 2:1 em solos subtropicais
(Universidade Federal de Santa Maria, 2013-02-22)
The 2:1 expandable clay minerals have high importance when present in soil, even in small amount, as in the case of soil with a high degree of secondary alteration. The study of these minerals is essential to understanding ...
Qualidade física do solo sob diferentes tempos de adoção e de escarificação do sistema plantio direto e sua relação com a rotação de culturas
(Universidade Federal de Santa Maria, 2013-02-26)
No-tillage (NT) is a tillage system more important for the sustainability of agro-ecosystems.
However doubts remain concerning the formation of layers with high compaction level in NT,
residual effects of soil chiseling, ...
Rhizophagus clarus e fósforo em Crotalaria juncea em solo com altos teores de cobre
(Universidade Federal de Santa Maria, 2013-07-22)
Arbuscular Mycorrhizal Fungi (AMF) can increase the tolerance of plants to heavy metals, as well as their ability to enhance the acquisition of phosphorus (P). The aim of this study was to evaluate how the inoculation with ...