Volatilização de amônia proveniente de ureia com zeólita natural

Werneck, C. G.; Breda, F.; Zonta, Everaldo; Lima, Eduardo; Polidoro, J. C.; Balieiro, F. de C.; Bernardi, A. C. de C.

doi:10.1590/s0100-204x2012000300020

Cited by 22 publications

(13 citation statements)

References 7 publications

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“…The urea sources associated both with zeolites and with urease inhibitor have proven efficiency in the literature regarding the reduction of nitrogen losses by volatilization when compared to the use of traditional urea (Pereira et al, 2009;Scivittaro et al, 2010;Werneck et al, 2012;Rech et al, 2017). In this way, the plant can absorb more nutrients, contributing to greater grain weight in these treatments.…”

Section: Resultsmentioning

confidence: 99%

“…Werneck et al (2012) found that the association of zeolites with urea decreased the losses by volatilization by 20%, in addition to increasing the nitrogen uptake by the plants. Bernardi et al (2010) found satisfactory results with the use of ureaassociated zeolites in the oat crop, evidenced by the increased agronomic efficiency of nitrogen.…”

Section: Introductionmentioning

confidence: 97%

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Nitrogen fertilization in super-early cycle common bean using new sources of urea

Braz¹,

Ferreira²,

Silveira³

et al. 2018

Científica

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The efficiency of new fertilizers as a nitrogen source in super-early cycle common bean cultivars still needs to be better known. The objective was to quantify the effect of new sources and time of application of nitrogen on yield and yield components of a super-early cycle bean cultivar. The experiment was conducted in the city of Rio Verde, state of Goias, Brazil, using the experimental design of randomized blocks, in a 3x3+1 factorial scheme, with four replications. The first factor was constituted by nitrogen (N) sources: traditional urea, zeolite-associated urea, and urea with urease inhibitor, using the dose of 80 kg ha -1 N. The second factor was application stages: V2, V3, and V4, that is, when 50% of the plants had the first pair of unifoliolate leaves, the first trifoliolate leaf, and the third trifoliolate leaf fully expanded, respectively. Moreover, an additional treatment was used, without N application (control). The cultivar used was BRS FC104, of super-early cycle, from 60 to 65 days. The following were measured: relative chlorophyll index (RCI), plant height, first pod insertion height, number of pods per plant, number of grains per pod, mass of 100 grains and yield. There was no significant difference between sources and application stages regarding the number of pods per plant, number of grains per pod, plant height and first pod insertion height. The highest yields were obtained with the use of zeolite-associated urea, and the best application stage was V4. The use of urea with urease inhibitor did not provide an increase in grain yield compared to the control treatment.Additional keywords: application stage; Phaseolus vulgaris; urease inhibitor; zeolites. ResumoA eficiência de novos adubos como fonte de nitrogênio em cultivar de ciclo superprecoce, no feijoeiro comum, ainda necessita ser mais bem conhecida. O objetivo foi quantificar o efeito de novas fontes e época de aplicação de nitrogênio na produtividade e nos componentes de produtividade de cultivar de feijoeiro de ciclo superprecoce. O experimento foi conduzido no município de Rio Verde-GO, utilizando o delineamento experimental de blocos casualizados, em arranjo fatorial 3x3+1, com quatro repetições. O primeiro fator foi constituído por fontes de nitrogênio (N): ureia tradicional, ureia associada a zeólitas e ureia com inibidor da urease, utilizando a dose de 80 kg ha -1 de N. O segundo fator foram estádios de aplicação: V2, V3 e V4, ou seja, quando 50% das plantas apresentaram o primeiro par de folhas unifolioladas, a primeira folha trifoliolada e a terceira folha trifoliolada totalmente expandida, respectivamente. Além disso, foi utilizado um tratamento adicional sem aplicação de N (testemunha). A cultivar utilizada foi a BRS FC104, de ciclo superprecoce, de 60 a 65 dias. Foram medidos o índice relativo de clorofila (índice SPAD), altura de planta e de inserção da primeira vagem, número de vagens por planta e grãos por vagem, massa de 100 grãos e produtividade. Não houve diferença significativa entre fontes e estádios de ap...

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

Nitrogen fertilization in super-early cycle common bean using new sources of urea

Braz¹,

Ferreira²,

Silveira³

et al. 2018

Científica

View full text Add to dashboard Cite

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“…And more recently Campana et al [44] carried out a greenhouse pot experiment and a field trial with Tanzania Clinoptilolite is the most known and used zeolite specie for retaining ammonium cation [31]. Werneck et al [45] achieved reduction of losses by ammonia volatilization when urea was applied with clinoptilolite. The natural zeolites recovering or fully in the urea granule decrease on average the losses of NH 3 -N volatilization by 20%, and also increased the amount of the N absorbed by plants of sorghum.…”

Section: Results Of Field and Laboratory Studiesmentioning

confidence: 99%

Enhancing Nutrient Use Efficiency Using Zeolites Minerals—A Review

Bernardi¹,

Polidoro²,

Monte³

et al. 2016

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On tropical soils, liming and balanced nutrient supply are essential to ensure high crop yield and quality. An adequate agronomic nutrient management should be a balanced nutrition and fertilizers are the key factor on supplying nutrients. Urea is the most commonly used fertilizer-N source, despite potential losses by NH 3 volatilization. Thus, new fertilizers technologies are needed to support the increasing demand and avoid the low N use efficiency (NUE). The reduction of NH 3 -N volatilization can be achieved by the use of natural aluminosilicates with nitrogenous fertilizer materials. This review consolidates the current status on the subject and the experience with the application of aluminosilicates as a slow release plant-nutrient fertilizer. Volatilization losses of nitrogenous fertilizers on the soil surface could be reduced with addition of natural aluminosilicates. Clay minerals (zeolites) are widely used in many countries to reduce NH 3 volatilization from amide N fertilizers, such as urea, besides several organic forms of nitrogenous sources. The reduction in ammonia losses by volatilization and the increased efficiency of N utilization and slow release nature of urea-zeolite mixtures when urea is used together with aluminosilicates was demonstrated in laboratory, greenhouse and field experiments with different crops and environments. These results indicate that aluminosilicates minerals used with urea mineral fertilizer can enhance the efficiency of this source by improving the nitrogen use through the control of retention of ammonium ion, contributing to increasd N uptake and crop yields.

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“…Urea is the fertilizer that has had more problems with the topdress soil due to N losses through volatilization of NH 3 (Martha Jr. et al, 2004, Duarte et al, 2007, Werneck et al, 2012Nascimento et al, 2013). Nevertheless, this source is considered one of the most important due to its relative low cost, high water solubility and good absorption of the products of its hydrolysis by plants.…”

Section: Introductionmentioning

confidence: 99%

Urease inhibitor (NBPT) and efficiency of single or split application of urea in wheat crop

et al. 2014

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RESUMOInibidor de urease (NBPT) e a eficiência da ureia aplicada em dose única ou parcelada na cultura do trigo O NBPT (N-(n-butil) tiofosfórico triamida) é uma substância inibidora da urease, que se vem apresentando como das mais promissoras para a maximização do uso do nitrogênio da ureia em sistemas agrícolas. O objetivo deste estudo foi avaliar o desempenho produtivo do trigo irrigado, submetido à fertilização com ureia ou ureia+NBPT aplicadas em dose única ou parcelada. O experimento foi conduzido, de junho a outubro de 2006, em Viçosa-MG, Brasil. Seguiu-se o esquema fatorial 2×2, em que a ureia ou ureia+NBPT foram combinadas com duas formas de aplicação: dose total na semeadura (60kg ha -1 ) ou parcelada (20kg ha -1 na semeadura + 40kg ha -1 , em cobertura, no perfilhamento). O delineamento experimental foi o de blocos ao acaso com dez repetições. Conclui-se que o parcelamento da fertilização nitrogenada não promove incremento de produtividade do trigo, sob as condições de cultivo empregadas; o uso de inibidor de urease aumenta a produtividade da cultura do trigo, quando a ureia é aplicada, em cobertura, durante o perfilhamento, mas, seu uso não promove aumento da produtividade quando a ureia é aplicada no sulco, durante a semeadura. Palavras-chave:Triticum aestivum L., nitrogênio, volatilização de amônia. Received: 20/09/2012; Approved:20/02/2014 Urease inhibitor (NBPT) and efficiency of single or split application of urea in wheat crop 1 NBPT (N-(n-butyl) thiophosphoric triamide), a urease inhibitor, has been reported as one of the most promising compounds to maximize urea nitrogen use in agricultural systems. The objective of this study was to evaluate the performance of irrigated wheat fertilized with urea or urea + NBPT as single or split application. The experiment was conducted from June to October 2006 in Viçosa, MG, Brazil. The experimental design followed a 2×2 factorial scheme, in which urea or urea + NBPT were combined with two modes of application: full dose at sowing (60kg ha -1 ) or split (20kg ha -1 at sowing + 40kg ha -1 as topdressing at tillering), in randomized blocks with ten replications. The split application of nitrogen fertilization does not improve the yield wheat under used conditions. The use of urease inhibitor improves the grain yield of wheat crop when urea is applied in topdressing at tillering, but its use does not promote difference when urea is applied in the furrow at planting.

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Volatilização de amônia proveniente de ureia com zeólita natural

Cited by 22 publications

References 7 publications

Nitrogen fertilization in super-early cycle common bean using new sources of urea

Nitrogen fertilization in super-early cycle common bean using new sources of urea

Enhancing Nutrient Use Efficiency Using Zeolites Minerals—A Review

Urease inhibitor (NBPT) and efficiency of single or split application of urea in wheat crop

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