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Itens para a visualização no momento 11-20 of 83
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 ...
Emissão de óxido nitroso e metano em área de cultivo com arroz irrigado com diferentes manejos da palha pós-colheita
(Universidade Federal de Santa Maria, 2013-02-15)
Post-harvest rice straw managements can alter CH4 and N2O emissions and global
warming potential (GWP) in lowland areas cultivated with rice. In order to test this
hypothesis, the present study was planned to quantify ...
Simulação do crescimento, desenvolvimento e produtividade de arroz no Rio Grande do Sul com o modelo simularroz
(Universidade Federal de Santa Maria, 2013-12-19)
The SimulArroz is an ecophysiological dynamic processes-based model for simulating the growth, development and grain yield of rice. In order to have scientific credibility, a simulation model has to be tested and exposed ...
Fluxo de emergência e controle químico de arroz-vermelho em soja RR™ cultivada em solo hidromórfico
(Universidade Federal de Santa Maria, 2013-03)
It is believed that the productive potential of irrigated rice production is of 10,000 kg ha-1. However, the productivity achieved today is still below the expected. This is mainly due to unsatisfactory control of weeds, ...
Quociente respiratório: inovação tecnológica para o armazenamento de maçãs em atmosfera controlada dinâmica
(Universidade Federal de Santa Maria, 2013-11-06)
The conventional controlled atmosphere storage resulted in a significant improvement in the
apples quality maintenance during the last decades, however, in this storage system further
losses occur. Therefore, recently a ...
Saberes e práticas tradicionais: uma análise do modo de apropriação da natureza pelos pecuaristas familiares da Serra do Sudeste/RS
(Universidade Federal de Santa Maria, 2013-09-04)
This study addresses the issue of the mode of appropriation of nature, from the ethnoecological
approach in the context of family farming. Aiming to analyze, especially the
corpus (knowledge) and praxis (practice productive) ...
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 ...