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Biochar association with phosphate fertilizer and its influence on phosphorus use efficiency by maize Ciência e Agrotecnologia
Santos,Sara Ramos dos; Lustosa Filho,José Ferreira; Vergütz,Leonardus; Melo,Leônidas Carrijo Azevedo.
ABSTRACT The use of fertilizers with some degree of protection of the phosphate ions can reduce soil adsorption and increase the absorption by plants, increasing the efficiency of phosphorus (P) fertilization. This study aimed to evaluate the performance of a phosphate fertilizer associated with biochar in granules in a P-fixing soil in a greenhouse experiment. Biochars were produced from two sources of biomass: sugarcane bagasse (SB) and wood sawdust (WS), which were pyrolysed at two temperatures (350 °C and 700 °C). After chemical and physical characterization, the biochar samples were granulated with triple superphosphate (TSP) in a 3:1 ratio (TSP: biochar). The agronomic evaluation of the fertilizers was carried out by two successive maize crops (Zea...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Organic residues; Adsorption; Pyrolysis; Tropical soils..
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542019000100202
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Effect of swine residue rates on corn, common bean, soybean and wheat yield Rev. Bras. Ciênc. Solo
Sartor,Laércio Ricardo; Assmann,Alceu Luiz; Assmann,Tangriani Simioni; Bigolin,Paulo Egidio; Miyazawa,Mário; Carvalho,Paulo Cesar de Faccio.
Swine residue (SR) applied as nutrient source of crops such as corn, bean, soybean and wheat, besides representing an environmental-friendly way of disposing of organic waste resulting from swine production, may significantly increase grain yields, replacing mineral fertilizer. The objective was to evaluate the effect of SR rates on corn, common bean, soybean and wheat yields from 2002 to 2007, in comparison with mineral fertilizer. The experiment was carried out at the Instituto Agronômico do Paraná - IAPAR, Pato Branco, PR and consisted of increasing SR rates (0, 15, 30, 45, and 60 m³ ha-1) and one treatment with mineral fertilizer (NPK 4-30-10), using 250 kg ha-1 for bean and 300 kg ha-1 for corn, soybean and wheat. Also, in the treatment with mineral...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fertilizer; Micronutrient; Foliar nitrogen; Organic residues; Foliar phosphorous.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832012000200035
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Evaluation of poultry litter traditional composting process BABT
Sanchuki,Carlos Eduardo; Soccol,Carlos Ricardo; Carvalho,Júlio Cesar de; Soccol,Vanete Thomaz; Nascimento,Camila do; Woiciechowski,Adenise Lorenci.
The objective of this work was to study the poultry litter composting and evaluate the physico-chemical and microbiological transformations as a time-function. At the end of composting, an increase of humification matter, a decrease of microbial diversity and the elimination of pathogens were observed. Results showed that poultry litter was liable of composting, without any nutritional complementation or inoculation and the process occurred similarly to other kind of organic residues.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Poultry litter; Composting; Organic residues; Thermophilic phase.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000500024
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Heavy metals and yield of cowpea cultivated under composted tannery sludge amendment Agronomy
Gonçalves, Iuna Carmo Ribeiro; Araújo, Ademir Sérgio Ferreira; Nunes, Luis Alfredo Pinheiro; Bezerra, Antônio Aécio Carvalho; Melo, Wanderley José de.
The study aimed to evaluate the phytoavailability of heavy metals (Cr, Cd, Ni and Pb) concentrations in leaves and grains, and yield of cowpea (Vigna unguiculata L) grown in soil amended with composted tannery sludge (CTS) for two consecutive years. The experiments were carried out in 2009 and 2010 in soil amended with CTS at 0, 5, 10, 20, and 40 Mg ha-1. The CTS amendment rates applied were above 10 Mg ha-1, increased Cr concentrations in cowpea leaves. There were not increases in the heavy metals concentrations in cowpea grains after two years. In 2009, the application of CTS amendment did not promote increase in plant yield. However, in 2010, CTS amendment at 10 and 20 Mg ha-1 increased cowpea yield. The amendment of composted tannery sludge linearly...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agronomia Vigna unguiculata; Organic residues; Trace elements Ciencia do Solo.
Ano: 2014 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/18094
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Spacings between plants with chicken manure in Roselle crop - doi: 10.4025/actasciagron.v33i4.6933 Agronomy
Ramos, Diovany Doffinger; Universidade Federal da Grande Dourados; Vieira, Maria do Carmo; Universidade Federal da Grande Dourados; Zárate, Néstor Antonio Heredia; Universidade Federal da Grande Dourados; Yamamoto, Natanael Takeo; Universidade Federal da Grande Dourados; Carnevali, Thiago Oliveira; Universidade Federal da Grande Dourados; Souza, Natália Hilgert; Universidade Federal da Grande Dourados.
The purpose of this work was to analyze the effects of plant spacing within rows by means of applying or not applying chicken manure to the soil cover in the growth and yields of roselle biomass. The treatments consisted of five spacings between plants (0.30, 0.35, 0.40, 0.45 and 0.50 m) and the application or non application of chicken manure to the soil cover in a dose of 10 ton. ha-1, arranged in randomized blocks of 5 x 2 with four replicates. The maximum plant height (282.92 cm) was achieved at 200 days after the transplant (DAT), with 0.35 m between plants and without the application of chicken manure. The leaf area was significantly influenced by the interaction of the spacings between plants and the application of chicken manure, presenting a...
Tipo: Pesquisa de campo Palavras-chave: Ciências agrárias; Fitotecnia Hibiscus sabdariffa; Plant arrangement; Organic residues manejo e tratos culturais Hibiscus sabdariffa; Plant arrangement; Organic residues.
Ano: 2011 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/6933
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Zinc, copper and manganese availability in soils treated with alkaline sewage sludge from Paraná state (Brazil) Ciência e Agrotecnologia
Dalpisol,Maristela; Serrat,Beatriz Monte; Motta,Antonio Carlos Vargas; Poggere,Giovana Clarice; Bittencourt,Simone; Barbosa,Julierme Zimmer.
ABSTRACT In Paraná, most of the sludge generated in sewage treatment plants is subjected to the prolonged alkaline stabilization process. Although it is known that the alkaline sewage sludge contains micronutrients such as Zn, Cu and Mn, little is known about the availability of these elements in soils treated with this type of sewage sludge. Thus, the objective of the study was to evaluate the influence of alkaline sewage sludge from Paraná on Zn, Cu and Mn availability in soils. Twenty sewage treatment plants were selected throughout Paraná, where alkaline sewage sludge and the most representative agricultural soil of the each region were collected. Each soil was incubated for 60 days with alkaline sewage sludge rates (0, 10, 20, 40, and 80 Mg ha-1) from...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Acid soils; Organic residues; Recycling; Micronutrients..
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542017000100081
Registros recuperados: 6
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