Phosphorus and Zinc Interactions and Their Relationships With Other Nutrients in Maize Grown in Chelator-Buffered Nutrient Solution

Nichols, Brandt A.; Hopkins, Bryan G.; Jolley, Von D.; Webb, Brent W.; Greenwood, Bryan G.; Buck, Joshua R.

doi:10.1080/01904167.2012.631672

Cited by 34 publications

(39 citation statements)

References 23 publications

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“…A ocorrência de interação negativa entre fósforo e zinco em que os teores de fósforo na folha decrescem em função da alta dosagem de zinco via adubação, é comumente relatada na literatura (Carneiro et al, 2008;Mousavi, 2011;Nichols et al, 2012), o que se deve à inibição não competitiva da absorção desses nutrientes concordante, assim, com a afirmativa de Malavolta et al (1997), ao considerarem que o excesso de zinco faz diminuir a absorção de fósforo. Comportamento quadrático das doses de zinco também foi verificado para o teor foliar de manganês (Figura 3B), com o seu decréscimo a partir do emprego de 4,03 kg ha -1 Zn, comportamento atribuído à ocorrência de interações entre os nutrientes catiônicos em questão visto que apresentam similaridade de raio iônico e podem competir entre si pelos sítios de absorção das plantas (Moreira et al, 2003;Souza et al, 2010).…”

Section: Resultsunclassified

Fontes e doses de zinco na nutrição e produção de feijão-comum e mamona em consórcio

Cardoso

Galante

Teixeira

et al. 2013

Agraria

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RESUMOA mamona é tida, pelo governo brasileiro, como a principal oleaginosa com vista à produção de biodiesel. Contudo, isto não aconteceu devido aos seus baixos patamares de rendimento, sobretudo na região nordeste onde é cultivada comumente sob sistema consorciado com culturas anuais como feijão-comum. Produtividades satisfatórias somente serão conseguidas através do conhecimento das reais exigências nutricionais das culturas participantes do sistema consorciado, ante o que se objetivou, neste trabalho, avaliar a nutrição e as características agronômicas das culturas de feijão-comum e mamona em consórcio submetidas a diferentes fontes e doses de zinco. Empregou-se o delineamento de blocos casualizados em esquema fatorial 2 x 5 + 4, com três repetições. Os tratamentos foram compostos de duas fontes de zinco (óxido de zinco = 15% de Zn e sulfato de zinco = 20% de Zn), combinadas com cinco doses de zinco (0,0; 1,0; 2,0; 4,0 e 8,0 kgha -1 de Zn no solo) em consórcio de feijão-comum e mamona, mais os tratamentos adicionais do sistema monocultivo de feijão e mamona, usando-se a dose de 4,0 kg ha -1 das referidas fontes. Os teores foliares de fósforo, cálcio, magnésio, manganês e zinco em plantas de feijão e de mamona produzidas em sistema consorciado, foram influenciados pela adubação com zinco com o emprego do sulfato de zinco atribuído à sua maior solubilidade, comparativamente ao óxido de zinco. A fertilização com 4,1 e 4,9 kg ha -1 de zinco via solo, propiciou maiores rendimentos de grãos de feijão e mamona em consórcio. O sistema de consorciamento feijão-comum e mamona foi mais eficiente que o monocultivo para as diferentes doses de zinco adicionadas via fertilizante.Palavras-chave: adubação, associação de culturas, micronutriente, Phaseolus vulgaris L., Ricinus communis L. Sources and doses of zinc on beans and castor beans nutrition and production under intercropping ABSTRACTThe castor oil is taken by the Brazilian government as the main oilseed for biodiesel production. However, this did not happen because of their low levels of income, especially in the Northeast region, Brazil, where it is commonly grown under intercropping system with annual crops such as common bean. Satisfactory yields only be achieved with real knowledge of nutrient requirements of crops intercropping system participants. Therefore, this study aimed to assess the nutritional and agronomic traits of crops common bean and castor intercropping under different sources of zinc rates. The experimental of randomized block in 2 x 5 + 4factorial in scheme design, with three replications. The treatments consisted of two sources of zinc (zinc oxide = 15% Zn and zinc sulfate = 20% Zn) combined with five rates of zinc (0.0; 1.0; 2.0; 4.0 and 8.0 kg ha -1 Zn in soil)intercropping in common bean and castor, plus additional treatments single system common bean and castor, using a rate of 4.0 kg ha -1 of said sources. It is concluded that fertilization with zinc influenced foliar the phosphorus, calcium, magnesium, manganese content and zinc in these c...

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Section: Resultsunclassified

Fontes e doses de zinco na nutrição e produção de feijão-comum e mamona em consórcio

Cardoso

Galante

Teixeira

et al. 2013

Agraria

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“…Unlike N, soil P readily forms weakly soluble mineral compounds in the soil, and thus resulting in poor mobility and requiring plant roots to explore new regions in the soil to facilitate P uptake (Nichols et al, 2012). Screening rice genotypes using internal P utilization efficiency of rice grown in low P solution at seedling stage as screening index and subsequently testing in field trial would probably be an effective alternative to screen rice genotype with high P utilization efficiency (Li et al, 2005).…”

Section: Amanullahmentioning

confidence: 99%

Phosphorus and Zinc Interaction Influence Leaf Area Index in Fine vs. Coarse Rice (Oryza sativa L) Genotypes in Northwest Pakistan

Amanullah¹,

Inamullah²,

Shah³

et al. 2016

JPSP

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Leaf area index (LAI) is a measure of leafiness per unit ground area and denotes the extent of photosynthetic machinery is an important growth and yield-determining factor because it is a major determinant of light interception and transpiration. Phosphorus (P) and zinc (Zn) are the most important factors affecting LAI of rice (Oryza sativa L.). A field experiment was conducted to assess the impact of phosphorus (0, 40, 80, 120 kg P/ ha) and zinc levels (0, 5, 10, 15 kg Zn/ha) on LAI of rice (O. sativa L.) genotypes (fine and coarse [Fakhr-e-Malakand and Pukhraj]). The experiment was conducted on farmer field at Batkhela, Malakadnd in Northwest Pakistan during summer 2011 and 2012. When combined over the 2 years, the data revealed that the highest LAI at three different growth stages (tillering, heading, and physiological maturity [PM]) was obtained with application of the highest P level (120 kg/ha) being at par with 80 kg P/ha, while the lowest LAI was recorded when P was not applied. Similarly, the highest LAI was obtained with application of the two higher Zn levels (10 and 15 kg Zn/ha), while the lowest LAI was recorded when Zn was not applied. In the case of rice genotypes, the highest LAI was obtained from Pukhraj than other two genotypes at all growth stages. The other two rice genotypes (Fakher-e-Malakand and Basmati-385) produced statistically similar LAI at different growth stages. The higher LAI of Pukhraj was attributed to its long and wider leaves that resulted in higher mean single leaf area, leaf area per tiller, per hill, and per square meter. The LAI was the highest at heading stage than at early (tillering) and later (PM) growth stages. The increase in LAI was attributed to the increase in tillers number and leaf area/hill. The increase in LAI showed a positive impact on crop growth rate, dry matter, and yield. Application of 120 kg P+10 kg Zn/ha to rice genotype Pukhraj was more beneficial in terms of higher LAI and productivity in the study area.

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“…The high amount of P application didn't decrease the Zn level on the shoot in this study. NICHOLS et al (2012) obtained direct correlation between P and Zn concentration, confronting the commonly held belief that high P availability reduces Zn uptake in maize.…”

Section: Resultsmentioning

confidence: 99%

Effects of arbuscular mycorrhizal fungi and doses of phosphorus on corn crop

Dantas¹,

Carvalho²,

Coelho³

2014

Científica

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Phosphorus is the most limiting nutrient for crop production in Cerrado soils. The arbuscular mycorrhiza is a symbiotic association with the roots, which involves the arbuscular mycorrhizal fungi and promotes benefits to the plants, as an enhanced capacity of absorbing nutrients from the soil, mainly phosphorus. This study was performed in a greenhouse at Embrapa Cerrados, Planaltina-DF, Brazil, and aimed to evaluate the influence of arbuscular mycorrhizal fungi and phosphorus doses in the yield of dry matter and in levels of phosphorus in the shoots of corn. A completely randomized experimental design with five treatments (doses of phosphorus and inoculation) and three repetitions was used. There were significant responses to the treatments with different doses of phosphorus. The inoculated treatment didn't differ significantly from the non-inoculated treatment with the same dose of the nutrient and from the treatment with application of 100 mg kg -1 of P. The treatment with mycorrhizae showed the higher levels of phosphorus in the leaves. The results showed an interaction between P and Mg, K and Mn, being the first a synergistic interaction and the two other, antagonistic. The phosphorus fertilization and the mycorrhizal inoculation provide increments in the level of phosphorus in the shoots.

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Phosphorus and Zinc Interactions and Their Relationships With Other Nutrients in Maize Grown in Chelator-Buffered Nutrient Solution

Cited by 34 publications

References 23 publications

Fontes e doses de zinco na nutrição e produção de feijão-comum e mamona em consórcio

Fontes e doses de zinco na nutrição e produção de feijão-comum e mamona em consórcio

Phosphorus and Zinc Interaction Influence Leaf Area Index in Fine vs. Coarse Rice (Oryza sativa L) Genotypes in Northwest Pakistan

Effects of arbuscular mycorrhizal fungi and doses of phosphorus on corn crop

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