Atributos físicos e químicos de substratos compostos por biossólidos e casca de arroz carbonizada

Guerrini, Iraê Amaral; Trigueiro, R. M.

doi:10.1590/s0100-06832004000600016

Cited by 87 publications

(80 citation statements)

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“…Lima et al (2006) found an average of 1.8 g kg -1 Mg in cattle manure, which is lower than observed in our study. The average content of Mg in sewage sludge was similar to that found by Guerrini and Trigueiro (2004). The Mg concentration in the vermiculite was twice as high as in chicken manure.…”

Section: Resultssupporting

confidence: 85%

“…With half the concentration, the chicken manure is the second in average Zn content, and the values of the other materials were in a range of 6.1 (charcoal) to 101.5 (cattle manure) mg kg -1 . The average Zn concentration in sewage sludge in this study was higher than observed by Guerrini & Trigueiro (2004), but below the maximum (2800 mg kg -1 ) permitted by the Brazilian law, in the case of agricultural use of sludge (Brazil, 2006). The average Zn contents of 101.5 and 518.5 mg kg -1 for cattle manure and chicken manure, respectively, were lower than observed by , but within the range of concentrations measured by .…”

Section: Resultscontrasting

confidence: 74%

“…Charcoal, coconut fiber and sawdust contained lowest Cu levels. The average Cu content in the sewage sludge was below that observed by Guerrini & Trigueiro (2004) and also below the concentration (1500 mg kg -1 ) permitted by Brazilian law (Brazil, 2006) regulating the agricultural use of sludge. The average levels of B ranged from 4.3 (sewage sludge) to 31.0 mg kg -1 (chicken manure).…”

Section: Resultsmentioning

confidence: 56%

“…The average contents of Mn observed for cattle manure (460.2 mg kg -1 ) and chicken manure (630.8 mg kg -1 ) were higher and lower than those reported by , respectively. The average Mn content of 246.8 mg kg -1 in sewage sludge was higher than that reported by Guerrini & Trigueiro (2004). However, the average values in sludges observed elsewhere can exceed 800 mg kg -1 (Abreu Junior et al, 2005;.…”

Section: Resultsmentioning

confidence: 73%

“…The average Ca content in cattle manure was higher than verified by Severino et al (2006) and , but within the range reported by . The Ca content in sludge was 23.4 g kg -1 , which is higher than observed by Guerrini and Trigueiro (2004). However, Ca concentrations above 100 g kg -1 in sewage sludge are common (Abreu Junior et al, 2005).…”

Section: Resultsmentioning

confidence: 80%

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Chemical and physical properties of organic residues

Higashikawa

Silva²,

Bettiol

2010

Rev. Bras. Ciênc. Solo

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SUMMARYDue to human activity, large amounts of organic residue are generated daily. Therefore, an adequate use in agricultural activities requires the characterization of the main properties. The chemical and physical characterization is important when planning the use and management of organic residue. In this study, chemical and physical properties of charcoal, coffee husk, pine-bark, cattle manure, chicken manure, coconut fiber, sewage sludge, peat, and vermiculite were determined. The following properties were analyzed: N-NH 4 + , N-N0 3 -, and total concentrations of N, P, S, K, Ca, Mg, Mn, Zn, Cu, and B, as well as pH, Electrical Conductivity (EC) and bulk density. Coffee husk, sewage sludge, chicken manure and cattle manure were generally richer in nutrients. The EC values of these residues were also the highest (0.08 -40.6 dS m -1 ). Peat and sewage sludge had the highest bulky density. Sodium contents varied from 0 to 4.75 g kg -1 , with the highest levels in chicken manure, cattle manure and sewage sludge. Great care must be taken when establishing proportions of organic residues in the production of substrates with coffee husk, cattle or chicken manure or sewage sludge in the calculation of the applied fertilizer quantity in crop fertilization programs.Index terms: substrate, organic residue, soil contamination, residue disposal.( de: N, N-amônio, Nnitrato, P, S, K, Ca, Zn, Cu e B; foram, também, os

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Section: Resultssupporting

confidence: 85%

Section: Resultscontrasting

confidence: 74%

Section: Resultsmentioning

confidence: 56%

Section: Resultsmentioning

confidence: 73%

Section: Resultsmentioning

confidence: 80%

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