Consulta: subjectFacets:"Plant residues"
Registros recuperados: 8
Data/hora: 09/06/2024 06:19:56

Cover crops in the production of green and sweet corn
Provedor de dados: 75
Autores: Silveira,Bruna de S; Torres,José Luiz R; Orioli Júnior,Valdeci; Favaro,João Henrique de S; Costa,Luciene L; Charlo,Hamilton César de O.
ABSTRACT Intensive conventional tillage cultivation of both green and sweet corn can contribute to soil degradation when compared to no-till systems. This study aimed to assess the agronomic characteristics and physicochemical quality of green and sweet corn grains grown under succession planting using different cover crops. Two experiments were conducted, one with green corn and the other sweet corn, using a randomized block design consisting of seven treatments: brachiaria (B); Pearl millet (PM); showy crotalaria (SC); SC+B; PM+B; PM+SC and PM+SC+B, with four repetitions. The fresh (FW) and dry weight (DW) of the cover crops and decomposition of their residue were assessed, in addition to the agronomic performance and bromatological quality of green and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays; Specialty corn; Plant residues; Productivity; Physicochemical characteristics.
Ano: 2021
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362021000100094

Recomendações para o uso de composto orgânico adicionado de vinhaça em cultivo de cana-de-açúcar.
Provedor de dados: 14
Autores: GOMES, T. C. de A.; MELO, P. L. A. de; SANTOS, T. A.; PEREIRA, K. T. de O.; COSTA JUNIOR, J. C. da; SANTOS, T. C. dos; ARAUJO, J. L. P.
bitstream/item/215509/1/COT229.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Cana de Açúcar; Vinhaça; Resíduo Orgânico; Bagaço; Álcool; Resíduo Industrial; Cane sugar; Plant residues.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124499

Microbial biomass and soil fauna during the decomposition of cover crops in no-tillage system
Provedor de dados: 90
Autores: Gatiboni,Luciano Colpo; Coimbra,Jefferson Luis Meirelles; Denardin,Rosiane Berenice Nicoloso; Prado Wildner,Leandro do.
The decomposition of plant residues is a biological process mediated by soil fauna, but few studies have been done evaluating its dynamics in time during the process of disappearance of straw. This study was carried out in Chapecó, in southern Brazil, with the objective of monitoring modifications in soil fauna populations and the C content in the soil microbial biomass (C SMB) during the decomposition of winter cover crop residues in a no-till system. The following treatments were tested: 1) Black oat straw (Avena strigosa Schreb.); 2) Rye straw (Secale cereale L.); 3) Common vetch straw (Vicia sativa L.). The cover crops were grown until full flowering and then cut mechanically with a rolling stalk chopper. The soil fauna and C content in soil microbial...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Microbial carbon; Straw decomposition; Soil microorganisms; Plant residues.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832011000400008

Water-soluble nutrients in aerial plant parts of peanut and white oat as affected by lime and gypsum application
Provedor de dados: 90
Autores: Marques,Rúbia Renata; Crusciol,Carlos Alexandre Costa; Castro,Gustavo Spadotti Amaral; Perim,Lucas.
Lime and gypsum influence nutrient availability and uptake, as well as the content of organic acids in the aerial plant parts. These changes, quantified by plant analysis of soluble nutrients, may potentiate the effect of soil amendment, ensuring the sustainability of the no-tillage system. In this sense the effect of lime and gypsum surface application on the content of water-soluble nutrients in peanut and oat residues was evaluated. The experiment was conducted on an Oxisol in Botucatu (SP) in the growing seasons 2004/2005 and 2005/2006. It was arranged in a randomized block design in split plots with four replications, where lime rates represented the plots and presence or absence of gypsum application the subplots. Peanut was grown in summer and white...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plant residues; Acidity; Nutrient mobility.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832011000200020

Chemical attributes and microbial activity of soil cultivated with cassava under different cover crops
Provedor de dados: 91
Autores: Araújo,Fernando S.; Barroso,Josué R.; Freitas,Lucas de O.; Teodoro,Mauro S.; Souza,Zigomar M. de; Torres,Jose L. R.
ABSTRACT Conservationist systems of crop management increases the amount of substrate, alters fertility and increases soil biological activity. The objective of this study was to evaluate the influence of soil management systems on the chemical attributes and microbial activity of soil under cassava crop. The experiment was set as completely randomized design in a factorial scheme of 2 x 3 x 2, being two systems of cultivation (minimum with only mown; minimum with mown and incorporation), three types of soil coverage (fallow; Crotalaria juncea L.; Canavalia ensiformis L.) and two soil depths (0-0.10 and 0.10-0.20 m), with four repetitions. The production of dry mass from cover crops, the soil chemical attributes and the soil microbial activity were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crotalaria juncea; Canavalia ensiformis; Manihot esculenta; Soil microbial biomass; Plant residues.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000800614

Carbon, nitrogen and natural abundance of δ13C e δ15N of light-fraction organic matter under no-tillage and crop-livestock integration systems - doi: 10.4025/actasciagron.v34i4.15061
Provedor de dados: 1
Autores: Loss, Arcângelo; Universidade Federal Rural do Rio de Janeiro; Pereira, Marcos Gervasio; Universidade Federal Rural do Rio de Janeiro; Perin, Adriano; Instituto Federal de Educação Ciência e Tecnologia Goiano; Beutler, Sidinei Julio; Universidade Federal Rural do Rio de Janeiro; Anjos, Lúcia Helena Cunha dos; Universidade Federal Rural do Rio de Janeiro.
This study aimed to quantify the light organic matter mass (LOM) in water, free light fraction (FLF) of soil organic matter (SOM) and carbon (C), nitrogen (N) contents and natural abundance of δ13C e δ15N contained in the mass of LOM, C and N in the FLF in land use systems in the Cerrado region of Goiás State, Brazil. Were evaluated a crop-livestock integration system - CLIS (corn+brachiaria/bean/cotton/soybean) and no-tillage system - NTS (sunflower/millet/soybean/corn). The vegetal coverage of natural Cerrado, adjacent to NTS and CLIS, was considered as the original soil condition. Soil samples were collected at depths of 0.0-5.0 and 5.0-10.0 cm in full random experimental design. The CLIS showed the greatest mass and levels of C-LOM (5-10 cm), and too...
Palavras-chave: Cerrado; Brachiaria; Plant residues; Isotopic composition; Physical indicators Cerrado; Brachiaria; Plant residues; Isotopic composition; Physical indicators.
Ano: 2012
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/15061

Effect of castor cake and elephant grass composting on edaphic fauna
Provedor de dados: 65
Autores: Scoriza,Rafael Nogueira; Bianchi,Miriam de Oliveira; Correia,Maria Elizabeth Fernandes; Leal,Marco Antonio de Almeida.
ABSTRACT: Elephant grass and castor cake when combined can make a promising organic fertilizer. However, castor cake contains potentially toxic chemicals, such as ricin and ricinine. To test potential effects of these chemicals, compost piles of elephant grass ( Pennisetum purpureum Schum.) with castor cake were prepared with different C:N ratios (T1 = 40, T2 = 30, T3 = 20; T4 = 30 [control, elephant grass + crotalaria]) to evaluate colonization by edaphic fauna and any suppressive effects of castor cake. Soil organisms were collected with Berlese-Tullgren funnels. There were temporal differences between the treatments, and the epigeous fauna was mainly represented by members of the Acari and Entomobryomorpha. Elapsed time is the major factor in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Organic compound; Plant residues; Soil fauna.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001001750

Decomposition and nutrient release of leguminous green manure species in the Jaguaribe-Apodi region, Ceará, Brazil
Provedor de dados: 65
Autores: Pereira,Natanael Santiago; Soares,Ismail; Miranda,Fábio Rodrigues de.
ABSTRACT: The use of leguminous green manure can be an alternative for the region agricultural systems due to its ability to incorporate significant amounts of nutrients into the soil through decomposition and nutrient release from biomass. This study aimed to evaluate the decomposition rates and nutrient release of six leguminous green manure species ( Crotalaria juncea , Canavalia ensiformes , Cajanus cajan , Crotalaria spectabilis ,  Dolichos lablab and Mucuna deeringiana ) in an area of the Jaguaribe-Apodi agricultural region, Brazil. Experiment was carried out under field conditions in a randomized block design with five replications. Decomposition and nutrient release from leguminous biomass were monitored by sampling at 30, 60, 90, 120, 150 and 180...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mineralization; Nutrient cycling; Plant residues.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000600970