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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 ...
Aspectos técnico, econômico e ambiental do uso de fontes orgânicas de nutrientes, associadas a sistemas de preparo do solo
(Universidade Federal de Santa Maria, 2005-06-24)
The manures have been used as organic nutrient sources in many soil and climatic conditions, and their effects on technical, economic and environmental aspects are dependent on their characteristics and it can be changed ...
Simulação da necessidade de irrigação no estado do Rio Grande do Sul para compensar perdas por deficiência hídrica de milho, soja e feijão
(Universidade Federal de Santa Maria, 2004-02-27)
The temporal and spatial variability of the rainfall amount and its distribution is usually the major cause of agricultural yield losses. These variables are responsible for the oscillations in yields of Spring and Summer ...
Qualidade física de um vertissolo e produção forrageira em campo nativo melhorado, com irrigação e pastoreio
(Universidade Federal de Santa Maria, 2005-02-28)
The predominant production system in North central Uruguay is based on the combined beef cattle and sheep cattle grazing of native grasslands. Soils include an important area of Pelluderts, with high content of expansible ...
Efeito do condicionamento fisiológico sobre o desempenho de sementes para produção de forragem hidropônica
(Universidade Federal de Santa Maria, 2004-05-07)
Seeds of high quality are necessary to produce grass in hydroponic system, nevertheless, often seeds have poor quality and are in low amount. The physiological performance has been improved by the use of pre-germination ...
Propriedade de um nitossolo vermelho após nove anos de uso de sistemas de manejo e efeito sobre culturas
(Universidade Federal de Santa Maria, 2005-03-02)
Long-term use of management systems result in alteration in physical and chemical soil properties and its intensity is related to time, soil and climate conditions. Physical
properties are more susceptible to changes by ...
Potencial do Pupinus albescens Hook. & Arn. para recuperação de solos arenizados do bioma pampa
(Universidade Federal de Santa Maria, 2007-02-28)
As the productive processes move forward on the sandy soils of the Southwest region of Rio Grande do Sul, the
arenização has been assuming relevance as factor of soil and regional ecosystem degradation. Contention measures ...
Probabilidades de ocorrência de deficiência hídrica nos solos da região central do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2005-06-03)
The detailed determination of the probabilities of occurrence of certain levels of water deficit (WD) is important for the farming planning and environmental management in the public and private administration. Such ...
Dependência entre o tamanho da unidade básica e as estimativas das dimensões da parcela experimental de batata
(Universidade Federal de Santa Maria, 2005-11-11)
A uniformity trail with potato was carried out at potato seed production area of
FEPAGRO, Julio de Castilhos city, in 2003 agricultural year. Tuber yield of 3456 hills
was evaluated with a set of basic units (BU) compound ...
Distribuição da variabilidade genética em populações naturais de baccharis trimera (less) dc. (carqueja) no sul do Brasil.
(Universidade Federal de Santa Maria, 2004-12-13)
Carqueja (Baccharis trimera) is a native plant from South America, occurs in several settings, it is highly employed in popular medicine, and has been explored under a grasping way. This study had the purpose of producing ...