The nitrogen supply in wheat cultivation dependent on weather conditions and succession system in southern Brazil

Arenhardt, Emílio Ghisleni; Silva, Jose Antonio Gonzalez da; Gewehr, Ewerton; Oliveira, Antônio Costa de; Binelo, Manuel Osório; Valdiero, Antonio Carlos; Gzergorczick, Maria Eduarda; Lima, Andressa Raquel Cyzeski De; Silva, JosÃ© Antonio Gonzalez da

doi:10.5897/ajar2015.10038

Cited by 32 publications

(16 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Rainfall stands out as one of the main factors responsible for variations in agricultural yield. Prior knowledge of precipitation conditions may indicate management methods that ensure the success of the activity (Arf et al, 2012;Arenhardt et al, 2015). In winter cereals, however, rainfall without large volumes, which favors adequate soil moisture and well distributed throughout the crop cycle, characterizes a favorable environment for nitrogen management and greater expression of yield (Castro et al, 2012;Souza et al, 2013).…”

Section: Resultsmentioning

confidence: 99%

“…Fertilizer supply under these conditions shows reduced efficiency with consequent loss of productivity, besides increased production costs and generation of environmental contamination (Silva et al, 2015;Marolli et al, 2018). In agriculture these restrictions usually occur when the air temperature is high and/or low soil moisture due to a long period without rainfall (Arenhardt et al, 2015;Henrichsen et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Biostimulants in the Indicators of Yield and Industrial and Chemical Quality of Oat Grains

Silva

Mamann

Scremin

et al. 2020

JAS

View full text Add to dashboard Cite

The supply of glutamic acid-based biostimulants may represent an innovative technology to increase oat grain yield and quality. The objective of this study is to measure the effect of different biostimulants based on concentrations of glutamic acid and nutrients and their application on indicators of productivity and industrial and chemical quality of oat grains. The study was conducted in 2016 and 2017 in a randomized block design with four replications, considering 10 combinations of treatments for different application conditions and types of glutamic acid-based biostimulants, which were: 1. Control; 2. Zinplex (seed) + Biomol (grain filling); 3. Zinplex (seed) + Glutamin Extra (grain filling); 4. Zinplex (seed) + Biomol (thinning); 5. Glutamin Extra (1st fungicide application) + Glutamin Extra (2nd fungicide application); 6. Biomol (1st fungicide application) + Biomol (2nd fungicide application); 7. Zinplex (seed) + Vorax (grain filling); 8. Vorax (1st fungicide application) + Vorax (2nd fungicide application); 9. Biomol (thinning) + Vorax (grain filling) and 10. Biomol (thinning) + Glutamin Extra (grain filling). The foliar application of biostimulants with the presence of glutamic acid and nutrients may have positive effects on variables related to productivity and industrial and chemical quality of oat grains, however, depending on the agricultural year conditions. The application of Glutamin Extra in the 1st and 2nd fungicide application shows the best results in the vast majority of grain yield and quality variables, but the costs involving only biostimulants do not guarantee economic viability.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Biostimulants in the Indicators of Yield and Industrial and Chemical Quality of Oat Grains

Silva

Mamann

Scremin

et al. 2020

JAS

View full text Add to dashboard Cite

show abstract

“…Rainfall is the main meteorological variable affecting the yield of agricultural crops (Battisti et al, 2013). The condition of cultivation year in wheat is predominantly defined by the distribution and volume of rains during the development (Arenhardt et al, 2015). Significant differences between the main effects and interaction effects were obtained between years, hydrogel doses and N doses.…”

Section: Resultsmentioning

confidence: 99%

“…Nitrogen (N) is essential to guarantee high yield of the wheat crop (Teixeira Filho et al, 2010;Prando et al, 2013), but is easily leached in rainy years (Teixeira Filho et al, 2010; Mantai et al, 2015) or volatilized in dry years (Rojas et al, 2012;Arenhardt et al, 2015). Thus, N use efficiency by wheat is eventually compromised, decreasing the yield and increasing the losses to the environment (Prando et al, 2013.…”

Section: Introductionmentioning

confidence: 99%

“…Wheat is one of the most produced cereals in the world (Arenhardt et al, 2015;Brezolin et al, 2017). Nitrogen (N) is essential to guarantee high yield of the wheat crop (Teixeira Filho et al, 2010;Prando et al, 2013), but is easily leached in rainy years (Teixeira Filho et al, 2010; Mantai et al, 2015) or volatilized in dry years (Rojas et al, 2012;Arenhardt et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Nitrogen efficiency in wheat yield through the biopolymer hydrogel

Mamann

Silva

Scremin

et al. 2017

Rev. bras. eng. agríc. ambient.

View full text Add to dashboard Cite

A B S T R A C TNitrogen use efficiency in wheat biomass and grain yields can be favored by the biopolymer hydrogel. The objective of the study was to analyze the use of the biopolymer hydrogel applied to the seed in the optimization of fertilizer-N on wheat biomass and grain yields, under different conditions of agricultural year and succession systems of high and reduced release of residual-N. In the study, two experiments were conducted, with different farming systems, soybean/wheat and maize/wheat, one to quantify the biomass yield rate and the other to determine grain yield. The experiments were conducted in the years 2014 and 2015, in a randomized block design with four replicates in a 4 x 4 factorial scheme, corresponding to hydrogel doses (0, 30, 60 and 120 kg ha ), applied as top-dressing. It is possible to improve the fertilizer-N efficiency by wheat using the biopolymer hydrogel for the production of biomass and grains. The highest wheat yield per kilogram of N supplied is obtained with 30 and 60 kg ha -1 of hydrogel, regardless of the year and succession system.Eficiência do nitrogênio na produtividade do trigo pelo biopolímero hidrogel ) aplicadas em cobertura, respectivamente, no sistema de sucessão soja/trigo e milho/trigo. É possível melhorar a eficiência de N-fertilizante pelo trigo com o uso do biopolímero hidrogel à produção de biomassa e grãos. A maior produtividade de trigo por quilograma de nitrogênio fornecido é obtida com 30 e 60 kg ha -1 de hidrogel, independente do ano e do sistema de sucessão. R E S U M O IntroductionWheat is one of the most produced cereals in the world (Arenhardt et al., 2015;Brezolin et al., 2017). Nitrogen (N) is essential to guarantee high yield of the wheat crop (Teixeira Filho et al., 2010;Prando et al., 2013), but is easily leached in rainy years (Teixeira Filho et al., 2010; Mantai et al., 2015) or volatilized in dry years (Rojas et al., 2012;Arenhardt et al., 2015). Thus, N use efficiency by wheat is eventually compromised, decreasing the yield and increasing the losses to the environment (Prando et al., 2013. Technologies that allow to improve yield with greater sustainability are necessary, especially in the increase of N use efficiency in the agricultural processes (Pinnow et al., 2013; Mantai et al., 2015).One of the ways to improve N absorption by plants is the maintenance of soil moisture, since the N supply depends, among other factors, on moisture, aeration and temperature, which interact in the cultivation systems (Rocha et al., 2008;Silva et al., 2015). The use of the biopolymer hydrogel may represent a technology to regulate soil water availability to crops, which would favor the efficiency of absorption of nutrients and improve the yield (Azevedo et al., 2008;Mendonça et al., 2013). Hydrogels are biodegradable threedimensional polymeric networks that retain water in their structure, forming a gel, which is capable of hydrating and releasing water over time (Kaewpirom & Boonsang, 2006;Venturoli & Venturoli, 2011).The objective of the study was t...

show abstract

Compliance with Gluten‐Free Labelling Regulation in the Brazilian Food Industry

et al. 2016

View full text Add to dashboard Cite

Cereal Chem. 93(5):518-522Gluten is an important protein complex for baking products found in wheat, rye, barley, and some oat varieties. However, some people need to avoid these grains and their products because they result in glutenrelated disorders. The only treatment for these individuals is to engage in a gluten-free diet. The objective of this work was to verify if the gluten content of several commercial food products sold in Brazil complied with their labeling. The Méndez ELISA R5 sandwich method was used to analyze 437 samples, and of these, 70% were labeled as gluten-free, 26% as containing gluten, and 4% not labeled in relation to gluten. The results indicated that 89% of the products labeled as glutenfree were correctly labeled and 11% were not, which represented a risk for celiac people. † Corresponding

show abstract

The nitrogen supply in wheat cultivation dependent on weather conditions and succession system in southern Brazil

Cited by 32 publications

References 25 publications

Biostimulants in the Indicators of Yield and Industrial and Chemical Quality of Oat Grains

Biostimulants in the Indicators of Yield and Industrial and Chemical Quality of Oat Grains

Nitrogen efficiency in wheat yield through the biopolymer hydrogel

Compliance with Gluten‐Free Labelling Regulation in the Brazilian Food Industry

Contact Info

Product

Resources

About