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| Oliveira,Lillian Matias de; Marchesan,Enio; David,Ricardo de; Werle,Isabel Schlegel; Aramburu,Bruno Behenck; Donato,Gabriel; Silva,Anelise Lencina da; Costa,Ivan Francisco Dressler da. |
| Abstract: The objective of this work was to evaluate the effects of fertilization with nitrogen topdressing and silicates, as well as of the use of fungicides, on the occurrence of rice blast on panicles, milling yield, and whole grains, vitreous grains, and chalky kernels in a flood-irrigated rice cultivar sensitive to the disease. Two experiments were conducted in a randomized complete block design, in a 4×4×2 factorial arrangement, with four replicates: in experiment 1, four doses of nitrogen × four doses of calcium and magnesium silicate on soil × with and without fungicides; and, in experiment 2, four doses of nitrogen × four doses of potassium silicate applied on leaves x with and without fungicides. At the doses above 60 kg ha-1 nitrogen without... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oryza sativa; Pyricularia oryzae; Grain yield; Whole grains. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000102505 |
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| Wandscheer,Alana Cristina Dorneles; Marchesan,Enio; Silva,Marília Ferreira da; Aramburu,Bruno Behenck; David,Ricardo de; Trivisiol,Vinicius Severo; Silva,Anelise Lencina da. |
| ABSTRACT: The intensive use of plant protection products in rice paddy fields ( Oryza sativa L.) has caused concern about the environmental impact on communities of non-target organisms that are natural inhabitants in these agroecosystems. The purpose of this review is to analyze the data currently available in the literature about some important fungicides and insecticides (such as trifloxystrobin, tebuconazole, tricyclazole, lambda-cyhalothrin, and thiamethoxam), which are currently used to control pests and diseases in rice paddy fields, as well as their effects on the community of non-target aquatic organisms. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Plant protection products; Benthic insects; Oryza sativa L.; Lowlands. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000100153 |
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