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Registros recuperados: 25 | |
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O Prosa Rural desta semana apresenta alternativas de como proteger a lavoura de inverno. A produção de grãos no Brasil, no clima subtropical, quente e úmido, é um verdadeiro desafio para a agricultura brasileira. O clima favorece o aparecimento de doenças nos cereais de inverno, como manchas, fungos e bacterioses, que exigem do produtor e da assistência técnica todo um conhecimento das medidas de proteção de plantas: desde o monitoramento da lavoura, limitações no uso de fungicidas, até o momento adequado para as aplicações, por exemplo. No programa desta semana, você saberá sobre os estudos realizados pela Embrapa Trigo sobre o assunto e conhecerá a importância do monitoramento das lavouras de inverno como forma de reduzir danos e maximizar lucros. |
Tipo: Prosa Rural (INFOTECA-E) |
Palavras-chave: Lavoura de inverno; Grão; Assistência Técnica; Fungicida; Agricultura; Fungo; Bacteriose; Produtor; Grains; Fungicides; Agriculture. |
Ano: 2018 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1092876 |
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Wilson, William W.; Diersen, Matthew A.. |
Auctions and bidding play an important role in agricultural marketing. A common and noteworthy application of auctions and bidding is that of import tendering which is used for both price determination and the allocation of purchases among sellers. In this study we develop a model to evaluate bidding strategies and competition in Egyptian oilseeds imports. Information included the values of bids submitted by each supplier in each tender over the period 1990 to 1993. Results indicate that generally bids could be predicted for all bidders with a relatively high degree of confidence using simple relationships and accessible data. In addition, for each oil tender there appeared to be groups of bidders characterized by differences in their bid functions.... |
Tipo: Working or Discussion Paper |
Palavras-chave: Bidding; Auction; International Grain Competition; Grains; Importing; Marketing; International Relations/Trade. |
Ano: 1999 |
URL: http://purl.umn.edu/23421 |
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Vieira Filho, Javer Alves; Geraldo, Adriano; Machado, Luiz Carlos; Brito, Jerônimo Ávito Golçalvez de; Bertechini, Antônio Gilberto; Murakami, Elise Saori Floriano. |
The experiment was conducted with the objective of evaluating the effect of protease enzyme supplementation on performance parameters and quality shell of laying hens. We used 240 Isa Brown commercial laying hens with 44 weeks of age. A completely randomized split-plot design (5 periods of 21 days) with four treatments and six replications (10 hens per replication) was used. The experimental diets were formulated according to the requirements of the breed. The following parameters were evaluated: egg production, feed intake, feed conversion, average egg weight, egg loss, specific gravity, percentage and shell thickness. After collection, the data were analyzed with SISVAR Statistical Package, and the means compared by SNK test at 5% probability. It was... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Laying hen farming; Enzymes; Grains; Nutrition. |
Ano: 2015 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/22830 |
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Gray, Richard S.; Smith, Vincent H.. |
The United States and Canada share the longest common border and largest bilateral trading relationship in the world. Recent trading agreements--CUSTA, NAFTA and WTO--have enhanced trade by encouraging elimination of many remaining trade barriers. However, one cause for concern about the effectiveness of these trade agreements has been the frequency of Canadian-U.S. trade disputes over bilateral wheat and barley trade arrangements and trade flows. To some extent, these disputes have arisen because of differences in and lack of harmonization between the domestic and trade policies implemented by the two countries, although other political factors have also clearly been important causes of these disagreements. Since 1986, many dimensions of the agricultural... |
Tipo: Working or Discussion Paper |
Palavras-chave: Agricultural policy; Harmonization and convergence; Grains; Oilseeds; International Relations/Trade; Q1. |
Ano: 1997 |
URL: http://purl.umn.edu/29163 |
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Oliveira,EM; Tanure,CBGS; Castejon,FV; Castro,RMAD; Rocha,FRT; Carvalho,FB; Andrade,MA; Stringhini,JH. |
ABSTRACTAn experiment was conducted to evaluate the performance and nutrient metabolizability of broilers fed diets containing fumonisin B1 (FB1) and an esterified glucomannan (EGM). In total, 420 male broilers were distributed according to a 3 x 2 + 1 factorial arrangement, corresponding to three FB1 exposure times (seven, 21, or 35 days), two dietary glucomannan addition levels (0 or 0.1% EGM), and control diet, totaling seven treatments. The following diets were fed: 1) Control diet, 2) pre-starter diet containing FB1, 3) pre-starter diet containing FB1 and 0.1% EGM, 4) starter diet containing FB1, 5) starter diet containing FB1 and 0.1% EGM, 6) grower diet containing FB1, and 7) grower diet containing FB1 and 0.1% EGM. On d 7, broilers fed FB1... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Adsorbent; Fungi; Grains; Metabolism; Nutrition; Poultry.. |
Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000300313 |
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Silva,Luiz C. da; Lucchesi,Luiz A. C.; Koehler,Henrique S.; Campos,Milton C. C.. |
This study aimed to evaluate the extractable phosphorus Mehlich-1 in a distrophic Red-Yellow Latosol (Oxisol) which received alkaline sewage sludge (alkaline biosolid) along with 0, 0.436, 0.872 and 1.745 dag kg-1 of P from three different sources and cultivated with common bean (Phaseolus vulgaris cv. IPR Uirapuru) in greenhouse. It also aimed to quantify the phosphorus uptake by the plant, plant production and the relative agronomic effectiveness index. For the establishment of the treatment the recommended dose was 45.85 kg ha-1 of P from the treatments, except the control (0 dag kg-1 of P). This dose was calculated for 2.5 kg of this Oxisol from Contenda, Paraná State, Brazil, contained in recepients of 3 dm3 with 6 cultivated bean plants (cv. IPR... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phosphorus; Dose; Grains; Dry mass; Phaseolus vulgaris. |
Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662012001200001 |
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Mittelmann,Andréa; Miranda Filho,José Branco de; Lima,Gustavo Júlio Mello Monteiro de; Hara-Klein,Claudete; Tanaka,Ricardo Takao. |
Among the traits that may add commercial value to maize (Zea mays L.), those related to nutritional quality, specially protein and oil content, are of great interest to the feed industry. The objective of this work was studying the variability of protein and oil content, as well as yield, in a group of maize testcrosses. One hundred and twenty S1 families of the ESA23B maize population were crossed with two testers, an open-pollinated population (BR108) and an exotic line (CML269). Testcrosses were evaluated at two locations under a completely randomized block design with three replications. Ear and grain yield, protein and oil content were evaluated. The three-way interaction location x tester x progeny was significant for all traits, except for oil... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays; Breeding; Topcross; Nutritional quality; Grains. |
Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000200017 |
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FREITAS-SILVA, O.; CASTRO, I. M. de; TROBETE, F. M.; ASCHERI, J. L. R.; DIREITO, G. M.; PORTO, Y. D.. |
O presente trabalho estudou o efeito da aplicação de ozônio gasoso sobre a degradação das aflatoxinas AFB1, AFB2, AFG1 e AFG2 em milho, em três diferentes condições experimentais, de modo a se avaliar a viabilidade de um sistema-protótipo proposto para ozonização. A ozonização gasosa mostrou-se uma tecnologia não térmica eficaz para reduzir a contaminação por aflatoxinas em milho triturado. Os tratamentos com ozonização mais drásticos, ou seja, aqueles com maior concentração de ozônio, maior tempo de exposição e menor massa de grãos, apresentaram melhores resultados na redução da contaminação por aflatoxinas totais, alcançando valores próximos a 45%. Portanto, o sistema de ozonização proposto mostrou-se eficaz nas condições estudadas, podendo servir de... |
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) |
Palavras-chave: Descontaminação de micotoxinas; Aflatoxin decontamination; Ozônio; Zea Mays; Tecnologia de Alimento; Grão; Produto de Origem Vegetal; Ozone; Food technology; Vegetable products; Grains. |
Ano: 2019 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1110442 |
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COELHO,C.G.; DALVI,L.P.; OLIVEIRA,L.S.G.; OLIVEIRA,F.L.. |
ABSTRACT: Improper management of weeds is one of the causes of low bean yield, as it is very susceptible to interference due to their slow initial growth. This study aimed to evaluate the influence of dayflower on grain yield and nutrient accumulation of bean cultivars. The experiment was carried out in a screened house, in 5 L pots, in a 2 x 4 factorial scheme. Factor 1 corresponded to the presence or absence of weeds, and factor 2 bean cultivars: BRS Pontal, BRS Agreste, BRS Ametista and BRS Estilo. The experiment was arranged in a completely randomized design with five replications. The coexistence of bean and weed was maintained throughout the crop cycle. Chlorophyll content, number of pods per plant, number of grains per plant, nutrients contents (N -... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Absorption; Commelina diffusa L.; Grains; Phaseolus vulgares L.. |
Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100156 |
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Ponciano, Niraldo Jose; Souza, Paulo Marcelo de; Mata, Henrique Tome Da Costa; Detmann, Edenio. |
The objective of this work was to evaluate, by means of the exchange rate, the profitability of two products directed toward the domestic market and two export products. Other objective was to identify productivity growth compensated the decrease of prices. The geometric rates of the production, area and productivity growth were estimated. The exchange rate was estimated by the relation between the index of the inputs prices and the index of the product prices. The results show a great trend of deterioration of the exchange terms for all the analyzed products. Evidenced that these effects more was been accented for rice and maize. Such behavior associates it the fact of the rice cultures and of maize to be destined to the domestic market, its demands have... |
Tipo: Journal Article |
Palavras-chave: Terms of exchange; Grains; Inputs; Prices; Productivity; Income; Productivity Analysis. |
Ano: 2007 |
URL: http://purl.umn.edu/54598 |
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Registros recuperados: 25 | |
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