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Sistemas de cultivo para a cultura de melancia
(Universidade Federal de Santa Maria, 2010-07-15)
Aiming to evaluate the watermelon crop (Citrullus lanatus L.) in different management systems, on an Ultisol in the Central Depression of RS, Brazil, an experiment was carried out during the agricultural year 2008/2009 ...
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 ...
Nitrogênio na solução do solo e aspectos nutricionais e fisiológicos do milho cultivado após 12 anos sob fontes orgânicas e mineral
(Universidade Federal de Santa Maria, 2018-07-19)
Animal manures are frequently utilized in agriculture as a source of nutrients, especially nitrogen (N). The
objective of this work was to evaluate how the application of manure from different animal breeding systems
during ...
Redistribuição de sedimentos em encostas por meio do C total e do isótopo 13C
(Universidade Federal de Santa Maria, 2017-07-17)
High intensity of rains, associated with inadequate management in agricultural areas, have been caused loss of large volumes of soil by erosion, leading the sediments and nutrients to the hydric sources. The loss of sediments ...
Modelagem matemática do escoamento superficial na escala de encosta sob plantio direto
(Universidade Federal de Santa Maria, 2017-02-24)
The runoff generation over fields with no-tillage agriculture management remains being a problem with environment, social and economic impacts. The purpose of this research was evaluate the capacity of a physic based and ...
Plantas de cobertura de solo consorciadas e em cultivo solteiro: Decomposição e fornecimento de nitrogênio ao milho
(Universidade Federal de Santa Maria, 2010-02-26)
No-tillage system is a soil management practice which predominates in the agricultural fields of Rio Grande do Sul Plateau. For its success, is essential the permanent vegetal soil cover maintenance and an adequate crop ...
Balanço e evolução temporal de fósforo e potássio em três solos sob sistema plantio direto no Paraguai
(Universidade Federal de Santa Maria, 2010-02-26)
Soybean, corn and wheat crops occupy actually 70% of the agricultural areas of Paraguay, with increasing fertilization consumption, suggesting the necessity of an
efficient use of this input. The objectives of this work ...
Agricultura por ambiente: manejo sítio específico da população de milho
(Universidade Federal de Santa Maria, 2012-02-24)
Precision agriculture (PA) is based on site-specific interventions, according to the spatial variability of productive factors. This strategy tends to decrease the spatial variability of yield in relation to that obtained ...
Controle do escoamento superficial e das perdas de solo em sistema plantio direto na escala de lavoura
(Universidade Federal de Santa Maria, 2016-07-29)
The evidence of the formation of surface flow and associated processes such as erosion, transfer of solutes, organic matter and nutrients, are the consequences of soil management not contributing to the maintenance of soil ...