Volatilização de amônia proveniente de fertilizantes minerais mistos contendo ureia

Gurgel, Gabriela Cemirames de Sousa; Ferrari, Anderson Claiton; Fontana, Ademir; Polidoro, J. C.; Coelho, Leonardo de Andrade Martins; Zonta, Everaldo

doi:10.1590/s0100-204x2016000900069

Cited by 7 publications

(5 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This was probably due to the high temperature and precipitation during this period (Inmet, 2016;Castro et al, 2018). In a study addressing the volatilization of ammonia in mixed mineral fertilizers, Gurgel et al (2016) found similar results. This underscores the importance of adequate castor cake management to reduce N losses by volatilization.…”

Section: Resultsmentioning

confidence: 76%

Ammonia Volatilization from Soil-Applied Organic Fertilizers

Rocha

Araújo

Santos

et al. 2019

Rev. Bras. Ciênc. Solo

View full text Add to dashboard Cite

A reliable quantification of nitrogen (N) losses by ammonia (NH 3) volatilization can contribute to identifying optimized strategies of fertilizer management. The objective of this study was to quantify ammonia volatilization from several organic N sources incorporated into or applied onto the soil surface. Two cultivation areas, under snap bean and corn, were evaluated at Embrapa Agrobiology, Seropédica, Rio de Janeiro (RJ). Both experiments used a randomized complete block design in split-plots, with four replications. The main plots consisted of four organic fertilizers (castor bean cake, bokashi, legume fertilizers, cattle manure), at rates of 200 kg ha-1 N, and a control treatment (without fertilization), and the subplots corresponded to the management forms (incorporated or surface-applied) of the fertilizers. In the first experiment, snap bean cv. Novirex was grown in winter/spring and in the second, corn cv. Catingueiro in summer/autumn. In each subplot, static semi-open NH 3 collectors were installed. We conclude that surface-applied castor cake was the organic fertilizer with highest N loss by NH 3 volatilization. A comparison of the management systems (incorporated or surface-applied) showed that volatilization from organic fertilizers incorporated into the soil was significantly lower, with a reduction of 80 % for castor cake, of 78 % for bokashi and 67 % for legume fertilizer. Nitrogen loss through ammonia volatilization varied, from rates of 3 to 25 % in winter/spring and from 2 to 38 % in summer/autumn, according to the organic fertilizer applied. The period required to recover 95 % of the N lost by NH 3-N volatilization was between 13 to 18 days for castor cake; 14 to 43 days for bokashi; 17 to 49 days for legume fertilizer and more than 43 days for cattle manure.

show abstract

Section: Resultsmentioning

confidence: 76%

Ammonia Volatilization from Soil-Applied Organic Fertilizers

Rocha

Araújo

Santos

et al. 2019

Rev. Bras. Ciênc. Solo

View full text Add to dashboard Cite

show abstract

“…Nitrogen losses due to ammonia volatilization were 31.5% lower in well-hydrated Haplic Planosols than in comparatively drier soils (Scivittaro et al, 2010). Maintaining soil moisture at 50% field capacity promoted fertilizer incorporation within the first days after application (Gurgel et al, 2016).…”

Section: Resultsmentioning

confidence: 99%

Use of urease inhibitors to reduce ammonia volatilization in Amazonian soils

Barberena

Espindula

Araújo

et al. 2019

Pesq. agropec. bras.

View full text Add to dashboard Cite

The objective of this work was to evaluate urease inhibitors for the reduction of ammonia volatilization in Amazonian soils. The work was carried out on a clayey yellow Oxisol, a clayey red Oxisol, and on a light silty Ultisol. Each experiment was conducted in split plots, using standard urea, urea + a benzimidazole-type urease inhibitor (BZI1), urea + a benzoylthiourea-type urease inhibitor (RTB68), urea + N-(n-butyl) triamide thiophosphate (NBPT), or a fertilizer-free control. Volatilized ammonia was collected at 48, 96, 144, 192, 240, 288, 336, and 384 hours after fertilization. Ammonia volatilization reached a maximum at 144 hours in the urea, urea + benzimidazole, and urea + benzoylthiourea treatments. A peak level was reached at 192 and 288 hours in the urea + N-(n-butyl) triamide thiophosphate treatment. In yellow Oxisols, benzimidazole and benzoylthiourea reduced the ammonia losses by 22 and 10%, respectively, in soils without urease inhibitors. However, neither of these agents significantly reduced ammonia volatilization at the rate determined for standard urea in red Oxisols or Ultisols. N-(n-butyl) triamide thiophosphate is the most efficient urease inhibitor for the soils of southwestern Amazonia.

show abstract

“…In order to conciliate the volatilization rate, we used semi-open chambers to capture the ammonia, as previously described by Gurgel et al (2016) (Figure 2). In a nutshell, the chamber are basically glass-made cylindrical containers with 68 cm 2 of basal area, a hermetically lid and capacity for 1.5 L, with two holes opened on opposite sides, 5 cm below the lid, for placing two glass tubes, one for air inlet and the other for the air outlet.…”

Section: Analysis and Volatilization Of Ammoniamentioning

confidence: 99%

Volatilization of ammonia from conventional sources of nitrogen and compacted urea under controlled conditions

Souza

Lemos

Leal

et al. 2020

Agraria

View full text Add to dashboard Cite

Urea is the most used nitrogen fertilizer in tropical agriculture, but when applied to the soil surface, it can promote nitrogen (N) losses by volatilization of ammonia (NH3). The present study aimed to evaluate, under controlled laboratory conditions, the N-NH 3 losses from conventional N sources and compacted urea . Fertilizers were applied on the surface of a eutrophic Red Latosol of clayey texture (Oxisol), previously moistened to 60% of its maximum water-retention capacity. Conduction of the experiment was in a completely randomized design with six replicates . The treatments were four N sources in doses equivalent to 100 kg ha -1 of N (urea, urea + N-(N-butyl) thiophosphoric triamide (NBPT), ammonium nitrate and urea compacted with additives and polymers), and the additional control groups (soil with no fertilizer and empty chamber). We evaluated the N-NH 3 losses by volatilization for a period of 20 days with the aid of hermetically sealed chambers. The results demonstrated the importance of using compacted urea for reducing nitrogen losses via volatilization. These results suggest that choosing the N source can reduce its volatilization and thus improve the harnessing of N from the nitrogen fertilization, when performed with a urea basis.

show abstract

Volatilização de amônia proveniente de fertilizantes minerais mistos contendo ureia

Cited by 7 publications

References 15 publications

Ammonia Volatilization from Soil-Applied Organic Fertilizers

Ammonia Volatilization from Soil-Applied Organic Fertilizers

Use of urease inhibitors to reduce ammonia volatilization in Amazonian soils

Volatilization of ammonia from conventional sources of nitrogen and compacted urea under controlled conditions

Contact Info

Product

Resources

About