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Ammonia volatilization from surface application of organic residues and urea on Marandu palisadegrass R. Bras. Zootec.
Vanin,Álisson; Menezes,June Faria Scherrer; Benites,Vinicius de Melo; Simon,Gustavo André.
The objective of this study was to measure ammonia volatilization from surface application of pig slurry, poultry litter, urea and no fertilization. An experiment was conducted in a randomized block design, in plots repeated over time, with four treatments and four replications. The fertilizers tested were: mineral fertilizer (70 kg ha-1 N, 100 kg ha-1 P2O5 and 30 kg ha-1 of K2O, as urea, triple superphosphate and potassium chloride, respectively), pig slurry (200 m³ ha-1 applied in November 2008 and 200 m³ ha-1 applied in April 2009) and poultry litter (10 t ha-1 applied in November 2008 and 10 t ha-1 applied in April 2009). Five evaluations were performed with 24-hour intervals. Foams were used with glycerin and sulfuric acid, internally fixed in PET...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brachiaria brizantha; Losses; Nitrogen; Pig slurry; Poultry litter.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000400010
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Clay Mineralogy of Subtropical Soils under Long-Term Organic Fertilization in No-Tillage Systems Rev. Bras. Ciênc. Solo
Pedron,Fabrício de Araújo; Lourenzi,Cledimar Rogério; Ceretta,Carlos Aberto; Lorensi,Juliana; Cancian,Adriana.
ABSTRACT: Organic fertilization effect on physical-chemical properties in no-tillage systems in tropical soils has been widely investigated, but little is known about the effects of this practice on the mineralogy of the clay fraction. This study aimed to evaluate the clay-fraction mineralogy of two subtropical soils, fertilized with organic residues in long-term no-tillage systems. An Alfisol fertilized with 0, 40, and 80 m3 ha-1 yr-1 pig slurry was evaluated for eight years, and an Oxisol with 0, 8, and 16 Mg ha-1 of wood shavings with pig slurry, for six years. Soil samples from the layers 0.00-0.04, 0.04-0.08, and 0.16-0.20 m were collected and subjected to chemical extractions with DCB and oxalate, X-ray diffractometry, and thermal analysis. No...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil management; Soil minerals; Pig slurry.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832018000100413
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Do enzyme inhibitors dicyandiamide and NBPT influence the microbial immobilization of phosphorus in Humic Cambisol? AGRIAMBI
Dall’Orsoletta,Daniel J.; Gatiboni,Luciano C.; Schmitt,Djalma E.; Arruda,Bruna; Heidemann,Joice C..
ABSTRACT The application of nitrogen fertilizers, both organic and mineral, can cause nitrate losses by leaching. To minimize this effect, enzyme inhibitors are used. However, the effects on microbial biomass, which is the most sensitive and dynamic compartment of nutrients in the soil, as well as its effect on nutrients such as phosphorus (P) are unknown. This study aimed to evaluate the influence of the enzyme inhibitor (EI) on soil microbial phosphorus (Pm) when mineral fertilizer (NPK) or liquid swine manure (LSM) was applied in corn cultivation. The experiment was installed in a Humic Cambisol in Lages – SC, Brazil (27° 47’ 08” S; 50° 18’ 09” W) in the 2012/2013 season. The treatments consisted of: i) NPK; ii) NPK + EI; iii) LSM; iv) LSM + EI, applied...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil microbial biomass; Pig slurry; Nitrification inhibitor.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018001100788
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Microbiological and chemical attributes of a Hapludalf soil with swine manure fertilization PAB
Couto,Rafael da Rosa; Comin,Jucinei José; Soares,Cláudio Roberto Fonsêca Sousa; Belli Filho,Paulo; Benedet,Lucas; Moraes,Marcel Pires de; Brunetto,Gustavo; Beber,Caetano Luiz.
The objective of this work was to evaluate the microbiological and chemical attributes of a soil with a seven‑year history of urea and swine manure application. In the period from October 2008 to October 2009, soil samples were collected in the 0-10 cm layer and were subjected to the treatments: control, without application of urea or manure; and with the application of urea, pig slurry, and deep pig litter in two doses, in order to supply one or two times the recommended N doses for the maize (Zea mays)/black oat (Avena strigosa) crop succession. The carbon of the microbial biomass (MB‑C) and the basal respiration (C‑CO2) were analyzed, and the metabolic (qCO2) and microbial quotient (qmic) were calculated with the obtained data. Organic matter, pH in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Environmental quality; No‑tillage; Pig slurry; Soil quality; Swine production.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013000700010
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SWINE WASTEWATER: IMPACTS ON SOIL, PLANT, AND LEACHATE REA
Rosa,Danielle M.; Sampaio,Silvio C.; Pereira,Pâmela A. M.; Mauli,Márcia M.; Reis,Ralpho R. Dos.
ABSTRACT: The use of animal-origin residues as a nutrient source without prior and proper investigations on their positive and negative impacts can affect the quality of agricultural soils and the environment into which they are inserted. In this sense, the aim of this study was to assess the impact of swine wastewater and mineral fertilization application on soil, soybean crop, and leachate characteristics. The experiment was developed in drainage lysimeters under field conditions. The following doses of swine wastewater were applied: 0, 100, 200, and 300 m3 ha−1, both with and without mineral fertilization. Swine wastewater application contributed to increasing soil nutrients; however, a special attention should be paid to Cu+ and Zn+ accumulation, which...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Pig slurry; Soil fertility; Leachate; Water reuse.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000500928
Registros recuperados: 5
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