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| Escosteguy, Pedro Alexandre; Tissot, Bernardo da Silva; Cherubini, Rafael Mariath; Pauletto, Cristiano; Scheffer-Basso, Simone Meredith. |
| Poultry manure is used as fertilizer in natura, but little is known about whether it contaminates the soil with pathogenic organisms. The aim of this study was to assess the effects of organic, organomineral and mineral fertilizers on soil contamination by enteric pathogens, using poultry manure as the organic fertilizer. Manure was applied in field experiments at rates of 7.0 ton. ha-1 (maize crop, 2008/2009), 8.0 ton. ha-1 (wheat crop, 2009) and 14 ton. ha-1 (maize crop, 2010/2011). Organomineral fertilizer was applied at the same rates but was comprised of 50% manure and 50% mineral fertilizer. At 30 and 70 days after fertilization, the organic fertilizer and the upper 0-5 cm layer of the soil were tested for the presence of helminth eggs and larvae and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 50101005 soil contamination; Soil quality; Triticum aestivum; Zea mays.. |
| Ano: 2015 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/19387 |
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| ALMEIDA,RODRIGO E.M. DE; OLIVEIRA,SILAS M. DE; LAGO,BRUNO C.; P. JUNIOR,CLOVIS; TRIVELIN,PAULO C.O.; FAVARIN,JOSÉ L.. |
| ABSTRACT Corn grain yield, nitrogen (N) fertilizer efficiency and distribution to corn alone and three forms of corn and palisadegrass (Urochloa spp.) intercropping implantation was investigated. A field experiment with 15N labeling fertilizer was performed in randomized block design. No form of palisadegrass intercropping implantation affected corn grain yield, total N accumulation and N use efficiency (NUE), which were 8.7 t ha-1, 205 kg ha-1 and 37% respectively. The palisadegrass produced on average 1.9 t of dry mass, absorbing a maximum of 6 kg ha-1 or 5.5% of N fertilizer during corn growing. Furthermore, the palisadegrass did not affect N fertilizer distribution in soil-plant system, in which 28.2% was recovered in the soil and 40.4% in the plants... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 15N isotope; Crop-livestock integration; Nitrogen use efficiency; No-tillage; Urochloa spp.; Zea mays.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000401917 |
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| Kappes, Claudinei; Silva, Rayane Gabriel da; Ferreira, Vinícius Eduardo Nunes. |
| The aim of this study was to evaluate the agronomic performance of maize off-season with foliar application of A. brasilense and broadcast application of N rates. The research was conducted at the Experimental Station of the MT Foundation (17° 09' S, 54° 45' W and altitude of 490 m) in Itiquira, MT, in the off-season of 2013, on a clayey Rhodic Haplustox. The experimental design was in randomized blocks with treatments in a 2 x 5 factorial arrangement (with and without the application of A. brasilense x broadcast application of N rates: 0, 30, 60, 90 and 120 kg ha-1, via urea). The applications of inoculant and N were done in the V5 stage. The sowing of hybrid DOW 2B587 Hx was held on 02/22/2013. Final plant population, prolificacy, stem diameter, plant... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Adubação nitrogenada; Fixação biológica; Produtividade de grãos; Zea mays.. |
| Ano: 2017 |
URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/14550 |
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| Coelho, Antônio Eduardo; Tochetto, Cláudia; Turek, Thais Lemos; Michellon, Luiz Henrique; Fioreze, Samuel Luiz. |
| The objective of this work was to evaluate the seed inoculation with Azospirilum brasilense in corn plants under limitation of the water supply. Two assays were carried out in greenhouse conditions, using low nitrogen substrate pots. At first one, corn seeds were inoculated or not with A. brasilense and treated or not with a biostimulant (IBA+GA+KT). At the second experiment, two corn genotypes were inoculated or not with A. brasilense. In both assays, plants were submitted to limited condition of water supply at initial vegetative growth. During this period gas exchange parameters were determined at the plants. After stress period, dry matter and nitrogen content were determined in roots and above ground parts of the plants. In addition, substrate... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diazotrophic bacterium; Environmental stress; Nitrogen; Zea mays.. |
| Ano: 2017 |
URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/14004 |
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