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Doses de nitrogênio, silicatos e fungicidas em cultivar de arroz irrigado sensível à brusone
(Universidade Federal de Santa Maria, 2016-02-29)
Diseases are limiting factors for the expression of the high yield potential of rice cultivars in
the state of Rio Grande do Sul. Blast (Pyricularia oryzae) is considered the main disease,
causing damage to yield and milling ...
Épocas de semeadura, genótipos e programas de controle químico no manejo integrado da brusone na cultura do arroz irrigado
(Universidade Federal de Santa Maria, 2015-02-27)
The blast is the main disease of flooded rice. The integrated management of this disease is based on the adoption of cultural, genetic and chemical strategies of control. The objective of this work was to evaluate the ...
Previsão de safra de arroz no estado do Rio Grande do Sul através de modelagem numérica
(Universidade Federal de Santa Maria, 2015-02-19)
The objective of this study was to define a methodology for monitoring a flooded rice crop forecast for Rio Grande do Sul, and to evaluate the effect of the flood time on growth, development and rice productivity. Two ...
Impacto de agroquímicos usados na lavoura de arroz irrigado sobre a qualidade da água de irrigação e na comunidade zooplanctônica
(Universidade Federal de Santa Maria, 2010-02-26)
Agrochemicals are intensely used on rice (Orysa sativa L.) paddy culture, and depending on their environmental persistence and toxicity they may contaminate water bodies and affect non-target organisms. Both herbicides and ...
Época de semeadura de arroz irrigado: rendimento de grãos, controle de arroz-vermelho, eficiência no uso da água e estresse oxidativo
(Universidade Federal de Santa Maria, 2013-02-26)
Irrigated rice is highly influenced by weather, as it is by air temperature and solar radiation.
Thus, the study aimed to evaluate the effect of sowing dates on grain yield and in water use,
as well as in red rice, main ...
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 ...
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, ...
Variação nas metodologias de análise de germinação e vigor em sementes de arroz e soja
(Universidade Federal de Santa Maria, 2015-07-24)
The objective of this study was to identify variation in the results of germination and vigor in rice seeds and soybeans due to the different methodologies used in the test driving. Rice cultivars seeds were analyzed Guri ...
Manejo da palha e produção de feno de azevém: ciclagem de nutrientes e rendimento de grãos de arroz irrigado em sucessão
(Universidade Federal de Santa Maria, 2012-07-24)
The deployment of a culture successor as ryegrass (Lolium multiflorum Lam) to
irrigated rice in lowland areas could contribute not only to nutrient cycling, but also add to
income rice farmer. However, one needs to examine ...
Caracterização da qualidade e técnicas de detecção de bactérias em sementes de arroz
(Universidade Federal de Santa Maria, 2011-02-25)
Taking into account the importance of rice, both in social and economic relevance that the pathogens are in the process of crop development objectives of this study was to characterize the physical, physiological and health ...