Acumulação de nitrogênio e carbono no solo pela adubação orgânica e mineral contínua na cultura do milho

Maia, Celsemy Eleutério; Cantarutti, Reinaldo Bertola

doi:10.1590/s1415-43662004000100006

Cited by 7 publications

(4 citation statements)

References 12 publications

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“…Positive effect of soil N inputs with application of crop residues also is showed in literature 30,31 , as well the positive effect of N mineral fertilizer [32][33][34] . In our study, the application of crop residues increased 87% of total N in soil, while N mineral fertilize increased 61% of total N in soil, and association of crop residue and N mineral fertilizer contributed in 90%.…”

Section: Discussionmentioning

confidence: 72%

“…Increasing of soil N with mineralization of soybean residues was presented by 14,15,42 . 30 showed that compost application of beans and soybean residues and manure increased 44 and 27% of total organic nitrogen in soil layer 0.0-0.1 and 0.1-0.2 m, respectively compared to soil without N application. In our study, the highest decrease of N in remaining residue corroborated the N addition in soil by mineralization of soybean with a correlation of 99% (Pearson correlation).…”

Section: Discussionmentioning

confidence: 99%

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How Does N Mineral Fertilizer Influence the Crop Residue N Credit?

Almeida¹,

Silva²,

Wendling³

2020

Nitrogen

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In no-tillage systems, there is an accumulation of crop residues (CR), which plays an essential role in the availability of soil-N. A study was set up to provide information regarding the N credit and the influence of N mineral fertilizer. There was the addition of a similar rate of residue (10 Mg ha−1; sugarcane, soybean, and brachiaria) and N mineral fertilizer (urea; 120 kg N ha−1) in loam soil. After the stabilization of biological activity (73 days), soil and remaining residues were collected, and C and N monitored. The results showed that the N credit was positive with the application of soybean, sugarcane, and brachiaria. There was a positive balance of the soybean N credit in soil with a reduction from 2.49 to 0.90 g kg−1 of N in remaining residue, and a direct increase of 90% of soil-N. There is no need of N fertilizer to potentialize the soybean N credit, but it is required to potentialize N credit of brachiaria and sugarcane. The urea demonstrated to be an excellent enhancer of brachiaria N credit, but it was not adequate for sugarcane residues. Based on our result, the accumulation and incorporation of CR can be considered as N credit with a positive contribution in soil-N.

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Section: Discussionmentioning

confidence: 72%

Section: Discussionmentioning

confidence: 99%

How Does N Mineral Fertilizer Influence the Crop Residue N Credit?

Almeida¹,

Silva²,

Wendling³

2020

Nitrogen

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“…The plant biomass increased the amount of nutrients in the soil, which resulted in a corn yield increase from 4.2 t ha −1 in (soil fertilized with cattle manure) to 7.7 t ha −1 (soils with macrophyte). The continuous use of organic fertilizer increased corn productivity compared to chemical fer-tilizer, as reported by Maia and Cantarutti (2004).…”

Section: Ammentioning

confidence: 87%

Use of Eichhornia crassipes dry matter as organic substrate for germination and initial growth of corn

Anjos

Boria-Fernandez

Peixoto-Henares

2018

Ecosist. Recur. Agropec.

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The objective was to evaluate the potential use of the dry matter of the aquatic macrophyte (Eichhornia crassipes) as a substrate for germination and initial growth of corn (Zea mays L.). The experimental design was completely randomized with four treatments and ve replicates. The treatments consisted of testing substrates with dierent levels of E. crassipes dry matter and agricultural soil mixtures, with 100% E. crassipes dry matter, 50% E. crassipes dry matter and 50% agricultural soil, 25% E. crassipes dry matter and 75% agricultural soil, and 100% commercial agricultural substrate. Average stem height and diameter, and shoot and root fresh and dry mass were compared by one-way ANOVA and Tukey's test (p < 0.05). The results showed that E. crassipes dry matter could be used as a substrate for the germination and initial growth of corn, although the commercial agriculture substrate alone has resulted in higher initial corn growth

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“…Já onde houve aplicação de N em cobertura a taxa de incremento na produtividade foi de 14,76 kg, observando assim que a adubação nitrogenada contribui menos para o aumento da produtividade quando há interação entre adubação orgânica e mineral, efeito este também observado por Maia e Cantarutti, (2004). Silva et al (2007) afirmam que o uso contínuo da adubação organomineral na cultura do milho, provoca aumentos significativos por vários anos na produção de grãos.…”

Section: F V G L N Em Coberturaunclassified

Adubação orgânica na linha de semeadura no desenvolvimento e produtividade do milho

et al. 2011

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ResumoO uso combinado de fertilizantes químicos e materiais orgânicos têm sido recomendados como manejo alternativo, possibilitando a manutenção de altas produtividades com estabilidade de produção. Este trabalho teve como objetivo avaliar a influência de diferentes doses de esterco bovino aplicados na linha de semeadura, com e sem aplicação de nitrogênio em cobertura, no desenvolvimento e produtividade do milho. O experimento foi instalado no Campus experimental da UFT em Gurupi -TO, no dia seis de março de 2009. O delineamento experimental foi em blocos ao acaso em esquema fatorial 7x2+1, utilizando-se sete doses de esterco (0,0; 10,0; 20,0; 30,0; 40,0; 50,0 e 60,0 t ha -1 ) e um tratamento químico testemunha e como segundo fator duas doses de nitrogênio em cobertura. Foram realizadas avaliações semanais de altura de plantas dos 15 aos 57 dias após a emergência. Foram avaliadas altura de plantas final, massa verde e produtividade de grãos. As maiores doses de esterco promovem aumentos significativos nas características avaliadas. O nitrogênio em cobertura promoveu aumentos nas taxas de crescimento de plantas, na produção de massa verde e altura final de plantas, mesmo com adição de adubação orgânica. A aplicação de 50 t ha -1 de esterco sem aplicação de cobertura resultou em produtividade equivalente à adubação química, enquanto com aplicação de N em cobertura a dose de esterco equivalente foi 45,4 t ha -1 . Quando não se aplicou adubação nitrogenada em cobertura, a adubação química produziu massa verde e grãos equivalente as maiores doses de esterco, porém na aplicação de N em cobertura as maiores doses de esterco proporcionaram produtividades superiores a adubação química. AbstractThe combined use of chemical fertilizers and organic materials have been recommended as alternative management, enabling the maintenance of high yields and stability. This study aimed to evaluate the influence of levels of manure applied in the row, with and without nitrogen topdressing application, in maize growth and yield. The experiment was carried out in Gurupi -TO, on March 6, 2009. The experimental design was randomized blocks in factorial scheme 7x2+1, where were used seven levels of Recebido para publicação 13

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Acumulação de nitrogênio e carbono no solo pela adubação orgânica e mineral contínua na cultura do milho

Cited by 7 publications

References 12 publications

How Does N Mineral Fertilizer Influence the Crop Residue N Credit?

How Does N Mineral Fertilizer Influence the Crop Residue N Credit?

Use of Eichhornia crassipes dry matter as organic substrate for germination and initial growth of corn

Adubação orgânica na linha de semeadura no desenvolvimento e produtividade do milho

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