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| Registros recuperados: 43 | |
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| COELHO,MICHELLE A.; FUSCONI,ROBERTA; PINHEIRO,LILIANE; RAMOS,IONARA C.; FERREIRA,ADÃO S.. |
| ABSTRACT The addition of organic residues to agricultural soils has been used as a practical alternative to improve crop quality and health. The objective of this work was to evaluate maize physiological and nutritional responses to the application of compost and biochar combined with urea (N) and N-(n-butyl) thiophosphoric triamide (NBPT). The experiment was performed in plastic pots with 3 kg of soil under greenhouse conditions for 30 days. The compost and biochar were applied at the rate of 0.3 ton ha-1, using an amount of nutrient (nitrogen, phosphorus and potassium) demanded by crop growth. The physiological responses of maize were monitored by measuring the plant height, stalk diameter, leaf chlorophyll content, shoot dry weight and root dry weight.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Composting; Pyrolysis; Nitrogen uptake; N-(n-butyl) thiophosphoric triamide; Nutrient assimilation. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000401695 |
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| Eckhardt,Daniel Pazzini; Redin,Marciel; Jacques,Rodrigo Josemar Seminoti; Lorensini,Felipe; Santos,Marcos Leandro dos; Weiler,Douglas Adams; Antoniolli,Zaida Inês. |
| ABSTRACT: This research aimed to evaluate the mineralization of nitrogen (N) and to define the efficiency index (EI) of N after the addition of organic fertilizers based on cattle manure on the soil under laboratory conditions. A completely randomized statistical design with four replicates was used. The treatments were set as follows: T1) Soil (control); T2) Soil + vermicompost of cattle manure (CMV); T3) Soil + cattle manure and straw compost (CMS); and T4) Soil + cattle manure (CM). Experimental units were constituted by acrylic flasks with 5 x 5cm (height x diameter). Each flask was added with 135g of wet soil and 2.20, 2.45 and 2.27g of CMV, CMS and CM, respectively. Treatments were incubated at 25°C and the amount of mineral N from the soil (N-NH4+... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vermicompost; Organic fertilizer; Cattle manure; Composting. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000300472 |
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| Cestonaro,Taiana; Abreu,Paulo G. de; Abreu,Valéria M. N.; Lopes,Letícia dos S.; Coldebella,Arlei. |
| This study aimed to assess five composter types in poultry carcasses decomposition and to perform a physicochemical analysis of the compounds obtained. Composter types used were six-hole brick, wood, screen, windrow with three PVC pipes with six holes and windrow with three PVC pipes with 10 holes. Composting was followed by four periods using wood shaving like substrate with one bird carcass placed in each composter. Pile turning was performed every 10 days and temperature in each layer was measured on 1st, 7th, 14th, 19th and 29th day, at 3 p.m., as well as room temperature. Temperature during pile turning was also measured at five points per layer and carcass weighing performed to calculate decomposition percentage. Physicochemical parameters evaluated... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Composting; Organic fertilizers; Substrate. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000400002 |
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| Mees,Juliana B. R.; Gomes,Simone D.; Boas,Márcio A. Vilas; Fazolo,Ajadir; Sampaio,Sílvio C.. |
| The objective of this research was to evaluate the performance of the aquatic macrophyte Eichhornia crassipes applied in situ in a slaughter house treatment system, located in the west of the Paraná state, Brazil, regarding the nutrients removal and organic matter. Moreover, it aimed to obtain data from the production, management and composting practices of the biomass generated in the system. During 11 months of macrophytes development, physic and chemical parameters were monitored and plant density was controlled by periodical removal of excess biomass, which was weekly monitored and it is expressed in kg of aquatic plant per m² covered area. The degradation of the macrophytes removed from the treatment system was evaluated at the pilot scale in eight... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agroindustrial effluent; Nutrient removal; Water hyacinth; Composting; C:N ratio. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162009000300013 |
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| Siqueira,Félix G de; Martos,Emerson T; Silva,Evânia Geralda da; Silva,Romildo da; Dias,Eustáquio S. |
| The production of compost is one of the most important steps for the cultivation of any species of mushroom. For the Agaricus species, this step is even more complex because it depends on the performance of different microorganisms that act on the substrate, turning it into selective compost that promotes the growth of the fungus to be cultivated. Among the various factors that affect the microbial activity, the initial concentration of nitrogen is considered one of the most important. Due to the lack of conclusive studies about that, the aim of this study was to evaluate the productivity and biological efficiency of Agaricus brasiliensis in compost prepared with different initial concentrations of nitrogen, according to the composting methodology and to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Composting; Mushroom cultivation; Ammonia; Nitrogen concentration. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362011000200004 |
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| Registros recuperados: 43 | |
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