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Itens para a visualização no momento 11-20 of 31
Macroinvertebrados bentônicos em lavoura de arroz irrigado sob efeito de fungicidas e inseticidas
(Universidade Federal de Santa Maria, 2016-02-29)
The irrigated rice crop has economic and social importance for the state of Rio Grande do Sul. It is considered an environment rich in biological diversity, it is home for a range of animal communities, especially ...
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 ...
Herbicidas imidazolinonas: fitotoxicidade em arroz tolerante, azevém na entressafra e efeito do resíduo em soja
(Universidade Federal de Santa Maria, 2017-09-22)
The Clearfield® system of rice was developed as a control alternative of weeds in this crop, mainly weedy rice. Currently there are several rice varieties tolerant to herbicides of imidazolinones chemical group. The responses ...
Efeito do manejo integrado da brusone sobre componentes quantitativos e qualitativos do arroz irrigado
(Universidade Federal de Santa Maria, 2018-03-06)
Blast is a major disease in flooded rice due to its high potential to damage the crop. Blast control requires the use of integrated practices, such as cultural management, genetic and chemical methods. The main goal of ...
Virulência de isolados de Pyricularia oryzae cav. do arroz em poaceas
(Universidade Federal de Santa Maria, 2019-02-27)
Rice is one of the most important cereals grown in Rio Grande do Sul and, being the largest Brazilian producer, has economic and social importance for the State. The blast, caused by the fungus Pyricularia oryzae, is among ...
Emissão de gases de efeito estufa, características produtivas e morfológicas de cultivares de arroz sob manejos de irrigação
(Universidade Federal de Santa Maria, 2019-03-01)
The cultivation of irrigated rice is an important source of greenhouse gases emission. Among the main
greenhouse gases are the area of rice are methane (CH4) and nitrous oxide (N2O), which vary depending
on crop management ...
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, ...
Utilização do sistema John Deere - Surface Water PRO e CR - Campeiro 7 para obtenção de dados Altimétricos para o manejo do arroz irrigado (Oryza Sativa)
(Universidade Federal de Santa Maria, 2014-01-24)
Precision agriculture, have a determinant role in the management of agriculture, has a direct effect in the reduction of production costs as the environmental impacts from the management of localized farming. The conservation ...
Produtividade de arroz irrigado em função do número de operações mecanizadas de nivelamento de solo
(Universidade Federal de Santa Maria, 2016-03-11)
Rice is produced in all Brazilian states , and most of the national production is concentrated in
the states of Rio Grande do Sul and Santa Catarina. In these states dominate the conventional
cultivation system , ...
Previsão de safra de arroz e introdução de um submodelo de brusone no modelo SimulArroz
(Universidade Federal de Santa Maria, 2020-05-25)
The objectives of this thesis were (i) to adapt a methodology for rice yield forecast in Rio Grande do Sul – Brazil; (ii). to use hourly hydro-thermal time (HTT) to assess interannual and regional weather variability for ...