Fontes, doses e modo de aplicação de nitrogênio em feijoeiro no sistema plantio direto

Binotti, Flávio Ferreira da Silva; Arf, Orivaldo; Sá, Marco Eustáquio de; Buzetti, Salatiér; Alvarez, Angela Cristina Camarim; Kamimura, Karina Marie

doi:10.1590/s0006-87052009000200022

Cited by 27 publications

(29 citation statements)

References 11 publications

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“…These results are similar to multiple studies that have demonstrated the positive effect of N on 100 grain weight (Rapassi et al, 2003;Silva et al, 2004;Alvarez et al, 2005;Teixeira et al, 2005;Binotti et al, 2009). However, Bassan et al (2001) observed higher values in the inoculated treatments in relation to the non-inoculated ones and attributed the result to the non-existence of efficient native strains.…”

Section: Resultssupporting

confidence: 92%

“…However, an increase in net returns, which should be the ultimate goal of rural producers, is not always linked to technology or a process that enables an increase in yield, as noted by Binotti et al (2009). These authors found that application rates of ammonium sulfate that led to the highest bean yields did not result in higher values in net return, due to the high costs of N fertilizers.…”

Section: Resultsmentioning

confidence: 99%

“…Due to large variations in the price of N fertilizers and the different forms of supplying N, the use of financial analysis in bean research studies is becoming increasingly common (Binotti et al, 2009;Pelegrin et al, 2009;Binotti et al, 2010). However, an increase in net returns, which should be the ultimate goal of rural producers, is not always linked to technology or a process that enables an increase in yield, as noted by Binotti et al (2009).…”

Section: Resultsmentioning

confidence: 99%

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New Native Rhizobia Strains for Inoculation of Common Bean in the Brazilian Savanna

Mercante

Otsubo

Brito

2017

Rev. Bras. Ciênc. Solo

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Maximization of biological nitrogen fixation in the common bean (Phaseolus vulgaris L.) crop depends on the genetic characteristics related to the plant, the symbiotic efficiency of rhizobia, and environmental factors. The objective of this study was to evaluate the performance of rhizobia selected beforehand from Cerrado (Brazilian tropical savanna) soils in Mato Grosso do Sul. The experiments were conducted in 2007 in the municipalities of Aquidauana, Anaurilândia, Campo Grande, and Dourados, all located in the state of Mato Grosso do Sul. All procedures established followed the current recommendations of the Brazilian Ministry of Agriculture (Ministério de Agricultura, Pecuária e Abastecimento -MAPA), in accordance with the "official protocol for assessing the feasibility and agronomic efficiency of strains, and inoculant technologies linked to the process of biological nitrogen fixation in legumes". The program for selection of rhizobia for inoculation in bean plants resulted in identification of different strains with high symbiotic efficiency, competitiveness, and genetic stability, based on the Embrapa Agropecuária Oeste collection of multifunctional microorganism cultures. In previous studies, 630 isolates of Rhizobium were evaluated. They were obtained from nodules of leucaena (380) or dry beans (250) from 87 locations, including 34 municipalities in Mato Grosso do Sul. Three of them stood out from the others: CPAO 12.5 L2, CPAO 17.5 L2, and CPAO 56.4 L2. Inoculation of these strains in bean plants demonstrated economic viability and high potential for obtaining a more effective inoculant suitable for trading purposes.

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Section: Resultssupporting

confidence: 92%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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New Native Rhizobia Strains for Inoculation of Common Bean in the Brazilian Savanna

Mercante

Otsubo

Brito

2017

Rev. Bras. Ciênc. Solo

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“…This corroborates Binotti et al (2007), where a 62% higher productivity was obtained with the use of N, with increase in the total N in leaves and grains found an increase in productivity of about 100 kg ha -1 when the application of N was released in different moments. In turn, Binotti et al (2009) found no difference in productivity between provision of N in a single moment, at sowing, or dividing fertilization in different moments, and still, nitrogen content in the leaf was higher when dividing fertilization.…”

Section: Introductionmentioning

confidence: 70%

Subdivision of Nitrogen Fertilization in Irrigated Bean Culture in the Middle-North of Mato Grosso, Brazil

Cavalli¹,

Lange²,

Buchelt³

et al. 2016

NATIVA

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This study aimed to evaluate the effect of subdividing nitrogen fertilization on irrigated beans into two moments. The study was developed in Vera, MT, Brazil, from August to November 2012, under central pivot in direct sowing system. The experimental design consisted in randomized blocks with 10 treatments and four replications. Treatments consisted in dividing nitrogen application in two moments (sowing and coverage) with the final dose of 120 kg ha -1 except for the control treatment which received only 30 kg ha -1 at sowing. The following characteristics were evaluated: plant dry weight at flowering and at harvest, plant height and insertion of the first pod, nitrogen content in leaf and in grain, chlorophyll analysis (nitrogen sufficiency index and SPAD), nitrogen export, number of grains per pod and pods per plant, weight of one hundred grains and productivity. Pearson correlation was carried out for all factors. There was a significant difference between treatments only for productivity and nitrogen export, and the best results were observed in treatments that received fertilization equally divided between sowing and coverage. Production components that correlated with productivity were weight of one hundred grains and number of pods per plant.Keywords: Phaseolus vulgaris, winter cultivation, direct sowing system.Parcelamento da adubação nitrogenada na cultura do feijoeiro irrigado no Médio Norte do Mato Grosso RESUMO: O presente estudo objetivou avaliar a influência do parcelamento da adubação nitrogenada em duas épocas no feijoeiro irrigado. O estudo foi desenvolvido em Vera, MT, Brasil, no período de agosto a novembro de 2012, sob pivô central em sistema de semeadura direta. O delineamento experimental utilizado foi o de blocos ao acaso, com 10 tratamentos e quatro repetições. Os tratamentos consistiram na divisão da aplicação de nitrogênio em duas épocas (semeadura e cobertura) sendo a dose final de 120 kg ha -1 exceto em um tratamento controle que recebeu apenas 30 kg ha -1 na semeadura. Foram avaliadas as seguintes características: massa seca de plantas no florescimento e na colheita, altura de plantas e inserção da primeira vagem, teor de nitrogênio na folha e no grão, análise de clorofila (índice de suficiência de nitrogênio e SPAD), exportação de nitrogênio, números de grãos por vagem e vagens por planta, massa de cem grãos e produtividade, realizando-se correlação de Pearson para todos os fatores. Em relação aos tratamentos houve diferença significativa, apenas para a produtividade e exportação de Nitrogênio, sendo observado os melhores resultados nos tratamentos que receberam adubação dividida de forma igual na semeadura e em cobertura. Os componentes de produção que apresentaram correlação com a produtividade foram a massa de cem grãos e o número de vagens por planta. Palavras-chave:Phaseolus vulgaris, cultivo de inverno, sistema de semeadura direta.Recebido em fevereiro/2016; Aceito em julho/2016.

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“…Estes resultados corroboram os de Cardoso (2011) que não obteve diferença significativa no número de vagens por planta, no nú-mero de grãos por vagem e na massa de 100 grãos, em razão da aplicação de ureia, SA, nitrato de cálcio, NA e Ajifer, em cobertura, no feijoeiro. Binotti et al (2009) e Arf et al (2011 também não observaram efeito significativo de fontes nitrogenadas no número de grãos por vagem, provavelmente, conforme Andrade et al (1998), porque esta é uma caracterís-tica varietal, pouco influenciada pelo ambiente.…”

Section: Tratamentosunclassified

Productivity of irrigated beans due to sources of stabilized nitrogen fertilizer and controlled release

et al. 2015

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New nitrogen fertilizers are available in the market actually, however, does not have results on the efficiency of the Cerrado conditions. With that objective of this study was to evaluate the effect of urea including stabilized and controlled release urea on yield of irrigated common beans (Phaseolus vulgaris L) in no-tillage system. The experiment was conducted in the winter crop, at Embrapa Arroz e Feijão, in Santo Antônio de Goiás, State of Goiás, Brazil. The experimental design was randomized blocks, with five replicates. Treatments consisted of five N sources (urea, urea + NBPT, urea + polymer, ammonium sulphate, and ammonium nitrate) and a control (without N) being applied 20 kg ha-1 of N at sowing and 80 kg ha-1 onf N in topdressing. We evaluated the chlorophyll content in leaves of common beans, the leaf N content and dry mass weight (MSPA) in the flowering of common beans, the number of pods per plant, number of grains per pod, mass of 100 grains, grain yield and final stand of the common beans. The sources of nitrogen fertilizer did not influence, leaf N content, the mass of MSPA and the relative chlorophyll index of common beans. The use of polymerized urea and urea with urease inhibitor, did not produce increases in the number of grains per pod, number of pods per plant, mass of 100 grains and common beans yield compared to traditional sources of N, urea, ammonium sulfate and ammonium nitrate.

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Fontes, doses e modo de aplicação de nitrogênio em feijoeiro no sistema plantio direto

Cited by 27 publications

References 11 publications

New Native Rhizobia Strains for Inoculation of Common Bean in the Brazilian Savanna

New Native Rhizobia Strains for Inoculation of Common Bean in the Brazilian Savanna

Subdivision of Nitrogen Fertilization in Irrigated Bean Culture in the Middle-North of Mato Grosso, Brazil

Productivity of irrigated beans due to sources of stabilized nitrogen fertilizer and controlled release

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