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Disponibilidade de nitrogênio no solo e produtividade de arroz irrigado sob fracionamentos da adubação nitrogenada
(Universidade Federal de Santa Maria, 2018-07-31)
In the irrigated rice crop, nitrogen is required during almost its entire cycle, being recommended the fractionation of the nitrogen fertilization at the beginning of the tillering and at the beginning of the reproductive ...
Capim capivara: tratamentos pré-germinativos, superação da dormência de sementes e sensibilidade a herbicidas
(Universidade Federal de Santa Maria, 2011-02-25)
The West Indian Marsh Grass is a native grass to tropical areas of Central and South America, which grows in wetlands, supporting intermittent periods of flooding. Their forms of propagation by fragments of rhizomes, rooting ...
Caracterização populacional de melolonthidae do bioma Pampa e estrutura genética de Diloboderus abderus (sturm, 1826)
(Universidade Federal de Santa Maria, 2017-11-16)
The natural grassland areas of the Pampa biome have been replaced by croplands for crop production, which can have impacts on the white grubs community. White grubs are known as the larval stage of Coleoptera from the ...
Bioecologia e nível de dano econômico de Liogenys fusca Blanchard, 1850 (Coleoptera: Melolonthidae) no Rio Grande do Sul
(Universidade Federal de Santa Maria, 2012-02-29)
The white grub Liogenys fusca is an important pest of soil Midwest Region of Brazil,
his injuries have been recorded in crops such as corn, soybeans and oats. The objective of
this study was to study the bioecological ...
Danos de Helicoverpa armigera (Lepidoptera: noctuidae) na fase reprodutiva da soja
(Universidade Federal de Santa Maria, 2016-02-26)
ABSTRACT 1 - Economic injury level (EIL) studies using insects are essential to support pest management decisions. The objectives of this study were to characterize and quantify the damage of H. armigera on soybean ...
Capacidade de coleta de três métodos de amostragem e tamanho de amostra para lagartas e percevejos em soja
(Universidade Federal de Santa Maria, 2012-02-16)
This study aimed to compare the caterpillar and stinkbug collection capability of
sampling methods and to determine the sample size (number of sampling points) to estimate
the number of caterpillars and stinkbugs collected ...
Caracterização da variabilidade genética de Bombus morio do Rio Grande do Sul baseada no mtDNA (COI)
(Universidade Federal de Santa Maria, 2019-02-28)
Bees, insects belonging to the order Hymenoptera, are considered the most important and specialized group of pollinators. Within this group we can highlight bees of the genus Bombus, popularly known as bumblebee. Bombus ...
Danos do percevejo-barriga-verde dichelops melacanthus (dallas, 1851) (hemiptera: pentatomidae) na cultura do milho
(Universidade Federal de Santa Maria, 2011-02-25)
The research objective was to evaluate the damage caused by D. melacanthus in the initial phase of the maize crop. Two field trials were conducted in Rondonópolis, Mato
Grosso, and two greenhouse trials occurred in Santa ...
Influência da cobertura de solo sobre a flutuação populacional de Meloidogyne javanica
(Universidade Federal de Santa Maria, 2016-08-08)
The Meloidogyne spp. has a vast number of considered species of great agronomical importance. These species provoke high damages in diverse cultures and regions, and are of difficult to keep in control, therefore, majority ...
Manejo nitrogenado e fitossanitário no patossistema soja - Phakopsora pachyrhizi
(Universidade Federal de Santa Maria, 2014-02-21)
This study aimed to evaluate the performace of soybean cultivar subjected to nitrogen and plant management , depending on the supply of nitrogen and fungicide protection programs for disease. To this end an experiment was ...