Sustainable optimization of nitrogen uses in oat at sowing and top-dressing stages

Reginatto, Douglas Cézar; Silva, José Antônio Gonzalez da; Carbonera, Roberto; Bianchi, Cleusa Adriane Menegassi; Libardoni, Felipe; Kraisig, Adriana Roselia; Carvalho, Ivan Ricardo; Rosa, Juliana Aozane Da; Peter, Cibele Luisa; Basso, Natiane Carolina Ferrari; Berlezi, Júlio Daronco; Porazzi, Felipe Uhde

doi:10.21475/ajcs.21.15.01.2333

Cited by 8 publications

(4 citation statements)

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“…The nitrogen fractionation has been recommended for providing greater efficiency in the assimilation of nitrogen, especially when the weather conditions are not suitable for the application (Sangoi et al, 2007;Mantai et al, 2016). Studies indicate that the supply of fractionated nitrogen can reduce its losses using partial doses at suitable times for fertilization, especially when the environmental conditions for single dose fertilization in topdressing are not favorable (Brezolin et al, 2016;Reginatto et al, 2021). Costa et al (2017) observed a greater increase in biomass yield in wheat due to nitrogen fractionation in the phenological stage V 3 /V 6 .…”

Section: Resultsmentioning

confidence: 99%

Research Article The supply of nitrogen fertilizer in wheat to the highest environmental quality with satisfactory yield

Trautmann¹,

Silva²,

Rosa³

et al. 2021

Genet. Mol. Res.

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The management of nitrogen in wheat based on biological and environmental indicators can ensure productivity with a reduction in environmental impact. The objective of the study was to develop a more sustainable management of nitrogen use in wheat, considering the dose as a fraction of the total supply based on an estimate of the maximum technical and economic efficiency, and expected grain yield, in systems of succession of high and reduced release of N-residual, during acceptable and unfavorable crop years. The study was conducted from 2012 to 2018, in Augusto Pestana, RS, Brazil. Two experiments were conducted in each agricultural year and in each rotation system (soybean/wheat and corn/wheat), one to quantify the biomass yield and the other to determine grain yield. The experimental design was a randomized block with four repetitions in a 5 x 3 factorial, for doses of N-fertilizer (0, 30, 60, 90, 120 kg ha -1 ) and ways of supplying the nutrient [full condition (100%) at the phenological stage V 3 (third expanded leaf); fractionated (70%/30%) at phenological stage V 3 /V 6 (third and sixth expanded leaf) and fractionated (70%/30%) at phenological stage V 3 /R 1 (third expanded leaf and ear differentiation)], in the ©FUNPEC-RP www.funpecrp.com.br Genetics and Molecular Research 20 (3): gmr18903 A.B.P. Trautmann et al. 2soybean/wheat and corn/wheat succession systems with high and reduced N-residual release, respectively. More efficient use of nitrogen was obtained based on wheat grain productivity when applied at the full dose at the third expanded leaf stage. The supply of the maximum dose of nitrogen with an expectation of 3 t ha -1 ensures satisfactory productivity with reduced nutrient losses to the environment, especially in unfavorable years for cultivation, regardless of the succession system.

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Section: Resultsmentioning

confidence: 99%

Research Article The supply of nitrogen fertilizer in wheat to the highest environmental quality with satisfactory yield

Trautmann¹,

Silva²,

Rosa³

et al. 2021

Genet. Mol. Res.

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“…The agronomic potential is related to the genetic characteristics of the genotypes and their correct positioning in the growing environments. This maximizes the efficiency of resource use by the genotypes, resulting in higher productivity and grain quality (Reginatto et al., 2021).…”

Section: Introductionmentioning

confidence: 99%

Decomposition of phenotypic variation of white oats by meteorological and geographic covariables

Schmidt¹,

Carvalho²,

Silva³

et al. 2023

Agronomy Journal

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White oat (Avena sativa L.) is a cold season grass, with a very important role, both in animal and human food, due to the chemical composition of its grains, which have, among other beneficial components, fiber soluble food products, beta‐glucans. Therefore, the demand for grains of the crop is maximized and it is important to increase grain production. This can be achieved through the adequate positioning of the genotypes in the growing environments to maximize the agronomic performance of the crop. Thus, the objective of this work was to decompose meteorological and geographic variables in the positioning of white oat genotypes. The study took place considering 39 genotypes of white oats in 21 environments (in 13 years), in six municipalities of Rio Grande do Sul, two locations in the state of Santa Catarina, ten in Paraná and three municipalities in the state of São Paulo. The average grain yield (kg ha−1) of the genotypes in each environment was used to determine the adaptability and stability of the genotypes through the application of the Genotype and Genotypes by Environments Interaction (GGE biplot) biometric method and the reaction norm. The reaction norm pointed out that the genotypes UPFPS Farroupilha, UPFA Gaudéria and URS Guará demonstrated general adaptability to all environments, while FAEM 006 and URS Charrua expressed stability, high grain yield and higher than average genetic value. The GGE biplot graphically demonstrated that the genotypes URS Monarca and IPR Artemis demonstrated the highest grain yield and high stability in the environments Eldorado do Sul ‐ RS (E7) and Pelotas ‐ RS. Identifying genotypes with superior agronomic performance in specific environments minimizes the effects of genotype x environment interaction. These white oat genotypes can be used as sources of alleles for the development of new genotypes.This article is protected by copyright. All rights reserved

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“…Phosphorus (P) is one of the most important nutrients for plant growth and survival. It is essential for cellular bioenergetics and metabolic pathways within the plant body [2,3]. The primary function of mineral fertilizers is to increase crop yields, but the biggest impediment to realising known crop potential is the low use of fertilizers, notably P and N [4].…”

Section: Introductionmentioning

confidence: 99%

“…The effects of various nitrogen fertilization levels (0, 60, 120, and 180 kg/ ha N) on the agronomic performance of six wheat (Triticum aestivum L.) cultivars were investigated by Benin et al [8], the result indicated that in the cultivars tested, there was genetic diversity in response to nitrogen fertilization. Higher nitrogen fertilizer levels were linked to better yield component performance and a more suited water regime resulted with the greatest yield gains [3,9]. Tahir et al [10] studied 12 bread wheat cultivars released for a heat-stressed environment on yield performance for two seasons at four nitrogen levels (0 (N 0 ), 43 (N 43 ), 86 (N 86 ), and 129 (N 129 ) kg/ha).…”

Section: Introductionmentioning

confidence: 99%

Effect of Nitrogen and Phosphorus Fertilizer Doses on Agro Morphological Parameters of Wheat Varieties in Vertisol Region in India

Sharma¹,

Elanchezhian

Biswas

et al. 2022

IJPSS

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Wheat is the most important food grain, with more than a third of the world's population eating it as a staple diet for the optimum use of different nutrients. A field experiment was carried out at ICAR-IISS Bhopal to identify different wheat varieties that provide the highest yield under nutrient stress conditions. In this experiment, we studied the different morphological parameters in nine wheat varieties, i.e., plant height, plant dry weight, biological yield, and grain yield. With three replications, the experiment was set up in a split-plot design. There were 36 treatments in total, including three nitrogen levels and three P levels with nine genotypes, in each replication. In each replication, all of the treatments were split separately. T1 was the control treatment, and T2 was the optimum dose treatment. T3 was 50% nitrogen with a full phosphorus dose, and T4 was 50% phosphorus with 100% nitrogen doses. In sub-optimal doses of N and P (T3 and T4), T3 produced a higher biomass yield than T4, averaging all the selected nine varieties of wheat, whereas T4 had a higher grain yield than T3. The study's current findings, which showed that higher nitrogen fertilizer doses enhanced leaf area, plant dry weight, maximum biomass, and grain production, were consistent with this. Because nitrogen affects photosynthesis, the amount of photo assimilates the plant produces, the partitioning of dry matter, and organ development, it may have an impact on seed output along with phosphorus.

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Sustainable optimization of nitrogen uses in oat at sowing and top-dressing stages

Cited by 8 publications

References 5 publications

Research Article The supply of nitrogen fertilizer in wheat to the highest environmental quality with satisfactory yield

Research Article The supply of nitrogen fertilizer in wheat to the highest environmental quality with satisfactory yield

Decomposition of phenotypic variation of white oats by meteorological and geographic covariables

Effect of Nitrogen and Phosphorus Fertilizer Doses on Agro Morphological Parameters of Wheat Varieties in Vertisol Region in India

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