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Deficiência de ferro em grápia: efeito da adubação fosfatada e potássica
(Universidade Federal de Santa Maria, 2005-04-28)
Previous studies done with grápia (Apuleia leiocarpa (Vog.) Macbride) showed that the increase in the P fertilization induced visual symptoms of Fe-deficiency in the younger leaves. At cellular level, potassium may contribute ...
Influência da radiação solar e da temperatura do ar na produção de pepino em estufa plástica
(Universidade Federal de Santa Maria, 2004-07-15)
It was studied the influence of the variables global solar radiation and air temperature about the production of cucumber. It was used data of yield was studied was used data of production of each harvest along the ...
Influência da população de plantas, doses de nitrogênio e controle de doenças na produção e qualidade de grãos e sementes de arroz irrigado
(Universidade Federal de Santa Maria, 2005-04-26)
The objective of this study was to evaluate the effect of plant densities, nitrogen levels and foliar diseases control on grain yield and seed quality of irrigated rice. An experiment was conducted in Santa Maria RS ...
Modelagem do desenvolvimento da batata (solanum tuberosum l.) à campo
(Universidade Federal de Santa Maria, 2005-01-14)
Potato (Solanum tuberosum L.), Solanaceae, native of Cordilheira dos Andes, South America, is the fourth food crop worldwide, being only overcome by wheat, rice and corn. Potato production in Brazil is concentrated in the ...
Residual da mistura formulada dos herbicidas imazethapyr e imazapic em áreas de arroz sob diferentes manejos de solo
(Universidade Federal de Santa Maria, 2008-04-03)
Red rice (Oryza spp.) is one of the main limiting factors of rice yield (O. sativa L.) in the world and particularly in the Rio Grande do Sul (RS) state Brazil. The Clearfield®
technology is a viable and efficient tool for ...
Freqüência de irrigação no cultivo hidropônico da alface
(Universidade Federal de Santa Maria, 2008-02-21)
The objective of the work was to verify the influence of four intervals between the irrigations on the production of lettuce in hydroponics system and the retention of nutrient solution, besides more determining the best ...
Águas acumuladas em açudes e barragens na região de Santa Maria e flutuações em seus atributos físico químicos
(Universidade Federal de Santa Maria, 2005-09-30)
The quality of superficial waters of reservoirs depends on the form of ground
use occupation on the catchments area. As the recharge is superficial emanation the
enrichment of the water with plants nutrients is consequence ...
Substâncias húmicas em solos de diferentes feições geomorfológicas no rebordo do planalto do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2008-12-16)
In spite of the great importance of the soil organic matter for the sustainability of the
natural systems and of agricultural production, its study remains incipient in the area
of the Edge of the Rio Grande do Sul Plateau, ...
Erosividade, coeficiente de chuva, padrões e período de retorno das chuvas de Quaraí e Rio Grande, RS
(Universidade Federal de Santa Maria, 2005-10-11)
The rainfall specifics characteristics vary from one region to another. The knowledge of the rainfall potential to cause erosion is necessary to plan agricultural and civil engineering
activities. For Quarai and Rio Grande ...
Avaliação da cor e comportamento espectral de algumas classes de solos do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2005-02-23)
The soil color is a characteristic easily determined, through the visual comparison with the Munsell Charts and is related to the presence of iron oxide and organic matter in the soil. The obtention of the color trough ...