Produtividade e componentes de produção da soja adubada com diferentes doses de fósforo, potássio e zinco

Júnior, Affonso Celso Gonçalves; Nacke, Herbert; Marengoni, Nilton Garcia; Carvalho, E. A. de; Coelho, Gustavo Ferreira

doi:10.1590/s1413-70542010000300019

Cited by 23 publications

(15 citation statements)

References 7 publications

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“…The highest protein yields, in both periods, occurred at K doses above the value recommended by the soil analysis (120 kg ha -1 ). These results are consistent with those obtained by Pedroso Neto & Rezende (2005), Gonçalves Júnior et al (2010) and Petter et al (2014), who observed higher yields when K 2 O was applied above the dose recommended by the soil analysis, regardless of the mode of application.…”

Section: Resultssupporting

confidence: 92%

Potassium fertilization and sowing seasons on protein yield in soybean cultivars

Lima

Pelúzio

Mandarino

et al. 2017

Rev. bras. eng. agríc. ambient.

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The present study was conducted in order to determine the effects of potassium (K) fertilizer doses on the protein yield of different soybean cultivars, sown in two seasons, in the agricultural year 2013/14 (12/05/13 and 01/23/14), in Palmas-TO, Brazil. The experimental design, in each sowing season, was randomized blocks with 60 treatments and three replicates. The treatments were arranged in a 10 × 6 factorial scheme, represented by ten cultivars (BRS 325RR, M 9144RR, BRS 33871RR, TMG 1288RR, BRS 333RR, P 98Y70RR, TMG 1180RR, BRS 9090RR, M 8766RR and BRS 8990RR) and six doses of K fertilizer (0, 40, 80, 120, 160 and 200 kg ha-1 K2O). The late sowing decreased the protein yield. K fertilization increased the protein yield in soybean cultivars. The BRS 9090RR, BRS 33871RR and BRS 333RR cultivars, at high and low K doses, were the most promising for the protein yield, and their cultivation is strategic from the economic and environmental point of view.

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Section: Resultssupporting

confidence: 92%

Potassium fertilization and sowing seasons on protein yield in soybean cultivars

Lima

Pelúzio

Mandarino

et al. 2017

Rev. bras. eng. agríc. ambient.

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“…In soybean, the adequate plant nutrition is essential for enhance the pod set, which requires adequate availability of nutrients and assimilates in soybean plants [22]. These results are consistent with other studies, which it was observed a positive and high correlation between organic and mineral fertilizer use on number of pods per plants [21] [26].…”

Section: Resultssupporting

confidence: 90%

“…The best yield obtained through poultry litter use might be due to higher concentration of nutrients in this input, providing higher residual effect on soybean crop. Once soybean plants are highly responsive to nutrient supply [22], mainly in dystrophic tropical soils and in agro ecosystems which have high levels of productivity, given the high nutrient demand for biomass production [23] [24].…”

Section: Resultsmentioning

confidence: 99%

Residual Effects of the Organic Amendments Poultry Litter, Farmyard Manure and Biochar on Soybean Crop

Passos¹,

Rezende²,

Carvalho³

et al. 2014

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The use of organic wastes, as an alternative to inorganic fertilizer, can be an important strategy for Brazilian and tropical agriculture. Despite the importance, few field studies have been done for evaluating organic amendments on soybean crops in Brazil. The study aimed to evaluate the residual effects of the organic amendments poultry litter, farmyard manure and biochar combined with mineral fertilizer on some agronomic attributes of a soybean crop. A field experiment was carried out in a split-split-plot scheme, with three replicates in a randomized block experimental design. The organic sources (

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“…De acordo com Rezende et al (2009), a soja, sendo uma cultura expressiva em áreas cultivadas, necessita aplicação racional de fertilizantes, neste sentido, Gonçalves Júnior et al (2010), em estudo com a cultura da soja, evidenciaram que a aplicação de K 2 O (120 kg ha -1 ) aumentou a produção de soja até a quantia de 3,8 Mg ha -1 .…”

Section: Tratamentos Teor De K Teor De Ca Teor De S Produção De Grãosunclassified

“…Por outro lado, Gonçalves Júnior et al (2010) verificaram incremento na produtividade de grãos de soja em função da aplicação de potássio, com o uso da dose de 120 kg ha -1 de K 2 O. Lana et al (2002) observaram efeitos positivos nos aspectos fitotécnicos da soja quando aplicado 60 kg ha -1 de K 2 O em cobertura.…”

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Gessagem na cultura da soja no sistema de plantio direto com e sem adubação potássica.

et al. 2013

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Resumo -O gesso agrícola pode ser utilizado como fonte de enxofre, desta forma, melhorando a nutrição e promovendo ganhos na produtividade da cultura da soja em sistema de plantio direto. Objetivou-se com este trabalho avaliar os efeitos do enxofre (S) aplicados na forma de gesso agrícola na cultura da soja em sistema de plantio direto com e sem adubação potássica. O experimento foi conduzido no município de Guairá-SP em solo da classe LATOSSOLO VERMELHO Eutrófico. O delineamento experimental utilizado foi o de blocos ao acaso, em esquema fatorial 2 x 5, com quatro repetições. Os tratamentos foram obtidos pela combinação de dois níveis de K (0 e 60 kg ha -1 de K 2 O), fonte cloreto de potássio; e cinco doses de enxofre (0, 30, 60, 90 e 120 kg ha -1 de S), fonte gesso agrícola. Foram avaliados os teores foliares de potássio, cálcio e enxofre, além da produção de grãos e o teor de óleo presente nos grãos. O enxofre aplicado no solo melhora o estado nutricional da cultura da soja aumentando os teores de potássio, cálcio e enxofre, sem influenciar a produtividade de grãos, independente da adubação potássica. A aplicação de enxofre no solo aumenta o teor de óleo nos grãos da soja com ou sem adubação potássica.Palavras-chave -Enxofre. Nutrição de plantas. Sistema conservacionista. Abstract -The gypsum can be used as a sulfur source, thereby improving nutrition and promoting gains in yield of soybeans in no-tillage system. The objective of this study was to evaluate the effects of sulfur applied as gypsum in the soybean culture under the no-tillage system with and without potassium fertilization. The experiment was conducted in the city of Guaíra-SP in an OXISOL. The experimental design used was randomized blocks in factorial scheme 2 x 5 with four replications. The treatments were obtained by combining two levels of K (0 and 60 kg ha -1 K 2 O), applied as potassium chloride, and five doses of sulfur (0, 30, 60, 90 and 120 kg ha -1 S) applied in the form of gypsum. Foliar potassium, calcium and sulfur, in addition to grain yield and oil content in the grains were evaluated. It was observed that the application of sulfur in the soil improved the nutritional status of soybean in potassium, calcium and sulfur, without affecting grain yield, independent of potassium fertilization. The presence of sulfur in the soil increased the oil content in soybean grain with or without potassium fertilization.

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Produtividade e componentes de produção da soja adubada com diferentes doses de fósforo, potássio e zinco

Cited by 23 publications

References 7 publications

Potassium fertilization and sowing seasons on protein yield in soybean cultivars

Potassium fertilization and sowing seasons on protein yield in soybean cultivars

Residual Effects of the Organic Amendments Poultry Litter, Farmyard Manure and Biochar on Soybean Crop

Gessagem na cultura da soja no sistema de plantio direto com e sem adubação potássica.

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