2002
DOI: 10.1590/s1519-566x2002000300014
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Influência da Adubação Fosfatada - Potássica na Ocorrência de Pragas na Cultura da Soja

Abstract: -This study was developed to determine the effect of phosphate-potassic fertilization on the occurrence of soybean insect pests. Plots were arranged in a randomized complete block design in a 4 by 4 factorial experiment (four phosphate levels and four potassic levels) with three replications. The levels of phosphorus and potassic tested were, respectively: 0, 80, 120 and 160 kg/ ha of P 2 O 5 and 0, 40, 60 and 80 kg/ha of K 2 O. The insect population survey was carried out on a weekly-basis starting from the V… Show more

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Cited by 6 publications
(6 citation statements)
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“…Lagartas desfolhadoras em soja, Pseudoplusia includens (Walker) (Lepidoptera: Noctuidae), podem ser favorecidas por excesso de nitrogênio (Wier & Boethel, 1995) e Anticarsia gemmatalis Huebner (Lepidoptera: Noctuidae) por cálcio (Lourenção et al, 1984). Enquanto fósforo e potássio apresentaram efeito não significativo sobre A. gemmatalis (Cardoso et al, 2002).…”
Section: Efeito Da Adubação Sobre Lagartas Desfolhadorasunclassified
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“…Lagartas desfolhadoras em soja, Pseudoplusia includens (Walker) (Lepidoptera: Noctuidae), podem ser favorecidas por excesso de nitrogênio (Wier & Boethel, 1995) e Anticarsia gemmatalis Huebner (Lepidoptera: Noctuidae) por cálcio (Lourenção et al, 1984). Enquanto fósforo e potássio apresentaram efeito não significativo sobre A. gemmatalis (Cardoso et al, 2002).…”
Section: Efeito Da Adubação Sobre Lagartas Desfolhadorasunclassified
“…Os besouros desfolhadores do gênero Diabrotica (Coleoptera: Chrysomelidae) popularmente conhecidos como vaquinhas possuem danos minimizados em níveis adequados de potássio em feijoeiro (AJudarte et al, 1997), batata (Azeredo et al, 2002), e em soja (Cardoso et al, 2002). Os danos deste inseto também pode ser reduzidos com uso de diferentes fontes de silício (silicato de cálcio, pó-de rocha e terra de diatomáceas), em batata (Gomes et al, 2009;Assis et al, 2011).…”
Section: Efeito Da Adubação Sobre Besouros Desfolhadores E Larva Alfineteunclassified
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“…K is also responsible for stomatal opening and closing, which creates suitable conditions for the photosynthetic process and the gas exchanges (Marschner, 1995). K is still related to higher biotic and abiotic stress tolerance, such as Piezodorus guildinii (Cardoso et al, 2002), Cercospora kikuchii, Phomopsis sp. and Diaporthe phaseolorum f. sp.…”
Section: Introductionmentioning
confidence: 99%
“…When supplied in an unbalanced way, nitrogen and potassium can favor the occurrence of pests in a number of crops (CHAU & HEONG, 2005). In the strawberry crop, these nutrients can alter the population dynamics of harmful mites (CARDOSO et al, 2002); this is the case especially with nitrogen, which may increase the two-spotted spider mite fecundity (DAUGHERTY, 2011). v.93, n.2, p. 149 -160, 2018 Information about the appropriate management of nutrients for the strawberry crop and its response to fertilization are needed in order to understand the relationship between plant nutrition and the population dynamics of pests such as the two-spotted spider mite (RIBEIRO et al, 2012).…”
Section: Introductionmentioning
confidence: 99%