|
|
|
| Registros recuperados: 11 | |
|
|
| Santos,Cleberton C.; Bernardes,Rodrigo da S.; Goelzer,Ademir; Scalon,Silvana de P. Q.; Vieira,Maria do C.. |
| ABSTRACT Information on the physiological responses of native plants from the Brazilian Cerrado regarding the use of chicken manure and luminosities are important for their silvicultural management. Thus, aimed to evaluate the effect of chicken manure and luminous availability on the photosynthetic metabolism of Alibertia edulis (Rich) A. Rich. The experiment was carried out in pots, testing five doses of chicken manure – CM (0.00, 2.08, 4.16, 6.24 and 8.32 g kg-1) incorporated at Dystroferric Red Latosol, and two luminous environmental (full sun and 50% shaded). The higher CO2 assimilation rate, stomatal conductance and carboxylation efficiency of Rubisco occurred in seedlings grown in full sun. The seedlings showed higher photochemical indicators in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Marmelo-do-cerrado; Chlorophyll-a fluorescence; Physiological adjustments; Organic residue; Shaded. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000400420 |
| |
|
| |
|
| |
|
| |
|
|
| Schmitt,Djalma Eugênio; Gatiboni,Luciano Colpo; Heidemann,Joice Crescêncio; Dall’Orsoletta,Daniel João; Boitt,Gustavo; Brunetto,Gustavo. |
| Abstract: The objective of this work was to evaluate changes in phosphorus fractions in a Humic Cambisol cultivated with vineyards, after 62 years of additional fertilization with poultry litter. Soil samples were collected from two vineyards (V1 and V2) and a forested area adjacent to them. A total of 1,365 and 910 kg ha-1 P were applied to V1 and V2, respectively, throughout the past 62 years. Samples were collected at 0-10, 10-20, 20-30, and 30-40-cm soil depths for the analysis of soil physicochemical properties. The addition of poultry litter to the soil of the vineyards increased the contents of inorganic P (Pi) in all fractions, except in the residual fraction (residual-P), mainly at the 0-10-cm soil depth, in comparison with the forested area. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vitis labrusca; Chemical fractionation of P; Grapevine; Organic phosphorus; Organic residue. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000103805 |
| |
|
|
| Higashikawa,Fábio Satoshi; Silva,Carlos Alberto; Bettiol,Wagner. |
| Due 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-NH4+, 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.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Substrate; Organic residue; Soil contamination; Residue disposal. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000500026 |
| |
|
|
| Ferreira,Enderson Petrônio de Brito; Fageriae,Nand Kumar; Didonet,Agostinho Dirceu. |
| There are large areas of Oxisols in South America, including Brazil, with low fertility and acidity. To improve crop yields on these Oxisols, liming and fertilization is an essential practice. However, besides the high cost of fertilizers, chemical fertilizers cannot be used in organic production systems, except insoluble sources. Ash is one of the alternative source of supplying macro and micronutrients. A field experiment was conducted, in a completely randomized block design in a factorial arrangement (three sources of ash x four rates) resulting on 12 treatments, to evaluate the effect of source and rate of ash application on soil chemical properties. The treatments consisted of three sources (bagasse, bagasse+PJ07-A and bagasse+PJ07-RA) of sugarcane... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Base saturation; Organic residue; Alternative fertilizer. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902012000200004 |
| |
|
|
| Vieira, Maria do Carmo; UFGD; Zárate, Néstor Antonio Heredia; UFGD; Sanches, Maria Aparecida dos Santos; UFGD; Bendasso, Michelli Cristine Nunes Facholi; UFGD. |
| O trabalho teve por objetivo avaliar a produção e as características morfológicas dos capítulos florais da camomila ‘Mandirituba’ em função do uso de doses de nitrogênio (3, 18, 30, 42 e 57 kg ha-1), na forma de sulfato de amônio, e de cama-de-frango semidecomposta (1.000, 6.000, 10.000, 14.000 e 19.000 kg ha-1). Os tratamentos foram determinados utilizando-se a matriz experimental Plan Puebla III, resultando nas combinações de N e de cama-de-frango, respectivamente: 18/6.000, 42/6.000, 18/14.000, 42/14.000, 30/10.000, 3/6.000, 57/14.000, 18/1.000 e 42/19.000 kg ha-1. O delineamento experimental utilizado foi de blocos casualizados, com nove tratamentos e quatro repetições. Avaliou-se a altura de plantas e, nos capítulos florais, foram avaliados número,... |
|
Palavras-chave: 5.01.03.04-0 Produção de Mudas Chamomilla recutita (L.) Rauschert; Resíduo orgânico; Adubação nitrogenada. Chamomilla recutita (L.) Rauschert; Organic residue; Nitrogen fertilization. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/6632 |
| |
|
|
| Zárate, Néstor Antonio Heredia; Faculdade de Ciências Agrárias, Universidade Federal da Grande Dourados, Dourados; Matte, Leandro Cecílio; Estudante Agronomia, Bolsista PIBIC/CNPq/UFGD, Universidade Federal da Grande Dourados, Dourados; Vieira, Maria do Carmo; Faculdade de Ciências Agrárias, Universidade Federal da Grande Dourados, Dourados; Graciano, João Dimas; Facudlade de Ciências Agrárias, Universidade Federal da Grande Dourados, Dourados; Heid, Diego Menani; Estudante Agronomia, Bolsista PIBIC/CNPq/UFGD, Universidade Federal da Grande Dourados, Dourados; Helmich, Marcelo. |
| Foi estudada a cebolinha Todo Ano, cultivada em solo sem e com 10 t ha-1 de cama-de-frango semidecomposta aplicada em cobertura e com zero, uma e duas amontoas, com duas épocas de colheita. Os tratamentos foram arranjados como fatorial 2 x 3, no delineamento experimental de blocos casualizados, com cinco repetições. As plantas foram colhidas aos 64 dias após o plantio e aos 40 dias após o corte anterior (104 dias após o plantio). A maior (38,1 cm) e a menor (27,2 cm) altura das plantas foram obtidas no tratamento com e sem cama-de-frango em cobertura e uma amontoa, respectivamente. O maior diâmetro de coleto dos perfilhos foi de 5,92 mm aos 64 dias após o plantio, no tratamento com cama-de-frango e sem amontoa e o menor foi de 4,56 mm aos 104 dias após o... |
|
Palavras-chave: 5.01.03.01-6 Allium fistulosum; Resíduo orgânico; Trato cultural; Renda bruta Manejo e tratos culturais Allium fistulosum; Organic residue; Culture treatment; Gross income. |
| Ano: 2010 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/4379 |
| |
|
|
| Salazar S,Francisco; Rosas U,Marianela. |
| Currently in Chile, there is a lack of tools to determine the real-time nutrient contribution of slurries. This study aims to evaluate three quick tests for their accuracy in estimating the total contents of N (TN), P (TP), K (TK), and ammonium-N (N-NH4+) in dairy slurries. The quick tests included the Agros Nova Meter, Quantofix N Volumeter, and a hydrometer. While the Agros and Quantofix meters directly measure the ammonium-N content; the hydrometer indirectly estimates the total content of N, P, and K based on linear relationships with the slurry DM. Samples (73) were collected from dairy farms along Southern Chile (39° to 44° S and 71 to 73° W). Analyses were carried out on laboratory conditions using conventional techniques as well as using each of... |
| Tipo: Journal article |
Palavras-chave: Slurry; Organic residue; Chemical analysis; Nutrients. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000300021 |
| |
|
|
| Silva,Raquel de Oliveira; Scorza Júnior,Rômulo Penna; Bonfá,Maricy Raquel Lindenbah; Campanari,Maria Fernanda Zaneli; Mendes,Ieda de Carvalho. |
| ABSTRACT: Organic residues from sugarcane crop and processing (vinasse, boiler ash, cake filter, and straw) are commonly applied or left on the soil to enhance its fertility. However, they can influence pesticide degradation and sorption. The objective of this study was to assess the effect of adding these organic residues on the degradation and sorption of fipronil and atrazine in two soils of the State of Mato Grosso do Sul, MS, Brazil. The degradation experiment was carried out with laboratory-incubated (40 days; 28°C; 70% field capacity) soils (0-10cm). The batch equilibration method was used to determine sorption. Fipronil (half-life values of 15-105 days) showed to be more persistent than atrazine (7-17 days). Vinasse application to the soil favored... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Organic residue; Degradation and sorption.. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000701172 |
| |
| Registros recuperados: 11 | |
|
|
|
