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Registros recuperados: 3.482
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A guide to the assessment of heavy metal contamination in estuaries using biological indicators. Occasional Publication of the Marine Biological Association 4 Marine & Ocean Science
Bryan, G.W.; Langston, W.J.; Hummerstone, L.G.; Burt, G.R..
Tipo: Other Palavras-chave: GE Environmental Sciences.
Ano: 1985 URL: http://sabella.mba.ac.uk/271/
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A influência das florestas no manejo de bacias hidrográficas: anais. Infoteca-e
SEMINÁRIO SOBRE ATUALIDADES E PERSPECTIVAS FLORESTAIS, 11., 1984, Curitiba..
bitstream/item/62176/1/CNPF-DOCUMENTOS-16-EMPRESA-BRASILEIRA-DE-PESQUISA-AGROPECUARIA-EMBRAPA-CDD-551-48.pdf
Tipo: Documentos (INFOTECA-E) Palavras-chave: Balanço Hídrico; Bacia Hidrográfica; Conservação; Ecologia; Erosão; Floresta; Manancial; Manejo; Proteção Florestal; Solo..
Ano: 1985 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/298089
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A influência de dois tipos de consórcios de fruteiras na incidência de broca do tronco (Cratosomus sp) na graviola (Annona muricata L.) (*) Acta Amazonica
Ferreira Filho,Wlademar C.; Flores,Wanders Β. Chaves; Clement,Charles R.; Benson,Woodruff W..
O objetivo principal deste trabalho foi estudar a incidência e intensidade de ataque da praga "Broca do tronco" (Cratosomus sp.) na graviola (Annona muricataL.) em um sistema de dois tipos de consórcio de fruteiras. 0 estudo foi realizado na área do projeto "Sistema de Produção Comerciado de Fruteiras", instalado em /977 e se encontra localizado na E.E.S.T. do INPA, Km 41 da BR - 774 no Município de Manaus, foram utiliza das 6 espécies de fruteiras: graviola (Annona muricataL.), côco (Cocos nucíferaL.), pupunha (Bactris gasipaesH.B.K.), caju (Anacardium ocidentaleL.) birlbá (Rollinia mu cosa (Jacq.) Baill e o mapati (Pouroma cecropiazfoliaMart.). Os sistemas comerciados empregados são: Consórcio simples constituído pelas 6 espécies de fruteiras com 16...
Tipo: Info:eu-repo/semantics/article
Ano: 1985 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671985000100003
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A infra-estrutura de pesquisa e educação para a agricultura. Infoteca-e
SCHUH, G. E.; ALVES, E. R. de A..
bitstream/item/158380/1/Infra-estrutura-de-pesquisa.pdf
Tipo: Documentos (INFOTECA-E) Palavras-chave: Agricultura; Agronomia; Ensino Superior; Educação; Extensão Rural; Pesquisa Agrícola..
Ano: 1985 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1067925
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A inovação induzida e os limites a modernização na agricultura brasileira. Infoteca-e
PASTORE, A. C.; ALVES, E. R. de A.; RIZZIERI, J. A. B..
A agricultura brasileira vem sustentando taxas anuais de crescimento do produto superiores a 5% ao ano ao longo das duas últimas décadas. Esse ritmo de crescimento tem se mantido bastante estável no tempo, sendo mesmo superior as taxas verificadas na maioria dos demais países.
Tipo: Documentos (INFOTECA-E) Palavras-chave: Brasil; Agricultura; Desenvolvimento Agrícola; Modernização.
Ano: 1985 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/959586
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A MARKOV CHAIN ANALYSIS OF STRUCTURAL CHANGES IN THE TEXAS HIGH PLAINS COTTON GINNING INDUSTRY AgEcon
Ethridge, Don E.; Roy, Sujit K.; Myers, David W..
Markov chain analysis of changes in the number and size of cotton gin firms in West Texas was conducted assuming stationary and non-stationary transition probabilities. Projections of industry structure were made to 1999 with stationary probability assumptions and six sets of assumed conditions for labor and energy costs and technological change in the non-stationary transition model. Results indicate a continued decline in number of firms, but labor, energy, and technology conditions alter the configuration of the structural changes.
Tipo: Journal Article Palavras-chave: Crop Production/Industries.
Ano: 1985 URL: http://purl.umn.edu/29968
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A MATHEMATICAL PROGRAMMING MODEL FOR VEGETABLE ROTATIONS AgEcon
Musser, Wesley N.; Alexander, Vickie J.; Tew, Bernard V.; Smittle, Doyle A..
Rotations have historically been used to alleviate pest problems in crop production. This paper considers methods of modeling rotations in linear programming models for Southeastern vegetable production. In such models, entering each possible crop rotation as a separate activity can be burdensome because of the large numbers of possible rotational alternatives. Conventional methodology for double crop rotations reduces the number of activities but must be adapted to accommodate triple crop rotational requirements in vegetable production. This paper demonstrates these methods both for a simple example and an empirical problem with numerous rotation alternatives. While the methods presented in this paper may have computational disadvantages compared to...
Tipo: Journal Article Palavras-chave: Crop Production/Industries.
Ano: 1985 URL: http://purl.umn.edu/29375
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A meandering intermediate front North-West off Cape Verde Islands IRD
Hagen, Eberhard.
Tipo: Text Palavras-chave: COURANT SUPERFICIEL; TOURBILLON; UPWELLING; EAU CENTRALE; FRONT INTERMEDIAIRE; COURANT DES CANARIES.
Ano: 1985 URL: http://www.documentation.ird.fr/hor/fdi:23100
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A Microcomputer Based Planning and Budgeting System for Agricultural Research Programs AgEcon
Goodman, Daniel C.; Stilwell, Thomas C.; Smith, P. Jordan.
This paper presents a prototype model for a microcomputer generated integrated planning, budgeting, reporting, and management information system suitable for agricultural research organizations in developing countries.
Tipo: Report Palavras-chave: Food security; Food policy; Microcomputers; Research and Development/Tech Change/Emerging Technologies; Downloads November 2008-June 2009: 4; Q18.
Ano: 1985 URL: http://purl.umn.edu/54751
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A microplot method for recovery of entire plant root systems and their associated endoparasitic and semi-endoparasitic nematodes IRD
Caswell, E.P.; Nelsen, C.E.; Thomason, I.J..
Tipo: Text Palavras-chave: NEMATODE PHYTOPARASITE; RACINE; CULTURE IN VITRO; ETUDE EXPERIMENTALE.
Ano: 1985 URL: http://www.documentation.ird.fr/hor/fdi:21802
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A model for the relationship between catch and soak time in baited fish traps IRD
Sundberg, Per.
Tipo: Text Palavras-chave: MODELE; PIEGE; POISSON; CAPTURE; ANALYSE STATISTIQUE; TEMPS D'IMMERSION.
Ano: 1985 URL: http://www.documentation.ird.fr/hor/fdi:23097
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A MODEL OF OPTIMAL PUBLIC INVESTMENT IN U.S. AGRICULTURAL RESEARCH AgEcon
Fox, Glenn.
This paper examines three claims of inefficient allocation of public expenditure in publicly funded agricultural research in the United States. It has been argued by analysts of research policy that: 1. The overall level of public investment in agricultural research is less than what would be socially optimal. 2. The present composition of public research investment is excessively myopic in that too little basic research is performed relative to the level of applied research. 3. The allocation of research resources among commodities is inconsistent with economic efficiency. A nonlinear optimal growth model of the U.S. economy was employed to test these propositions. Strong support was found for the claim that the overall level of investment has been...
Tipo: Working or Discussion Paper Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 1985 URL: http://purl.umn.edu/13360
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A mosca das frutas e seu controle. Infoteca-e
SORIA, S. de J..
bitstream/CNPUV/524/1/cot003.pdf
Tipo: Comunicado Técnico (INFOTECA-E) Palavras-chave: Mosca-das-frutas; Ciclo evolutivo; Controle.; Entomologia; Planta Hospedeira..
Ano: 1985 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/534777
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A MULTIVARIATE ANALYSIS OF FACTORS INFLUENCING FARM MACHINERY PURCHASE DECISIONS AgEcon
Johnson, Thomas G.; Brown, William J.; O'Grady, Kevin.
This paper presents a model of the farm management process. The model suggests that certain socioeconomic characteristics of farm managers will influence their decision-making process. Several characteristics are hypothesized an tested using multivariate techniques (multivariate analysis of variance, range tests, and multiple comparisons). The analysis indicates that the soil zone, value of machinery inventory, operator's age, and operator's education influence the importance placed on each of 20 factors. On the basis of the analysis it was concluded that such a model of the farm management process can contribute to an understanding of farm management decisions. In addition, it was concluded that farm managers, farm machinery dealers, and extension...
Tipo: Journal Article Palavras-chave: Farm Management.
Ano: 1985 URL: http://purl.umn.edu/32321
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A new arietellid copepod (Crustacea): Pilarella longicornis, gen. n., sp. n., from the brazilian continental shelf Zoologia
Alvarez,Maria Paloma Jimenez.
Pilarella longicornis gen. n., sp. n. (Copepoda-Arietellidae) collected over the bottom of the Brazilian continental shelf is described and its taxonomic position is discussed.
Tipo: Info:eu-repo/semantics/article
Ano: 1985 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751985000400005
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A new cyclopid from groundwater of south Italy: Diacyclops bicuspidatus lucanus n.ssp. (Crustacea: Copepoda) Naturalis
Pesce, Giuseppe L.; Galassi, Diana P..
Diacyclops bicuspidatus lucanus n.ssp. is described from the phreatic freshwater network of Lucania (South Italy). Among the members of the “bicuspidatus” complex, the new subspecies is closely related to D. bicuspidatus odessanus (Schmankevitch, 1875) by the structure and the armature of the antennula of the female. From this subspecies, as well as from the others in the same group, D. bicuspidatus lucanus n.ssp. differs mainly by the remarkably elongated caudal rami and the unusual length ratio between innermost and outermost furcal setae.
Tipo: Article / Letter to the editor
Ano: 1985 URL: http://www.repository.naturalis.nl/record/505336
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A new Deroceras species from North_Western spain (Gastropoda: Pulmonata: Agriolimacidae) Naturalis
Winter, A.J. de.
Deroceras ercinae spec. nov. is described from the Cantabrian Mountains, Spain. The characters used to define the subgenera of Deroceras are discussed. It is demonstrated that the present subdivision of this genus into subgenera is not based on synapomorphic characters.
Tipo: Article / Letter to the editor Palavras-chave: Deroceras; Spain; Subgenera; 42.73.
Ano: 1985 URL: http://www.repository.naturalis.nl/record/318266
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A new genus and two new species of subterranean amphipod crustaceans (Hadziidae) from the Bahamas and Turks and Caicos Islands Naturalis
Holsinger, John R.; Yager, Jill.
Bahadzia, new genus, and two new species of amphipod crustaceans are described from anchialine caves in the Bahamas and Turks and Caicos Islands. One of the species is recorded from three caves on Grand Bahama Island and one cave on Great Abaco Island, whereas the other species is recorded from two caves on the island of Providenciales. The new genus is apparently more closely related to Metaniphargus and Saliweckelia than other hadziid genera in the peri-Caribbean region, but it also shares some important characters with Mayaweckelia.
Tipo: Article / Letter to the editor
Ano: 1985 URL: http://www.repository.naturalis.nl/record/504520
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A new genus of Toads (Amphibia: Anura: Bufonidae) from the Pacific Slopes of the Andes in Northern Ecuador and Southern Colombia, with the description of two new species Naturalis
Hoogmoed, M.S..
The genus Andinophryne, characterized by the presence of an omosternum, an externally visible tympanum, elongate parotoids and extensively webbed hands and feet is described from the Pacific versant of the Andes in northwestern Ecuador and southwestern Colombia. Two new species, Andinophryne colomai and A. olallai are described from Ecuador. The recently described Bufo atelopoides Lynch & Ruiz-Carranza is transferred to the new genus. Some comparisons with other atelopodid Bufonidae (Atelopus, Dendrophryniscus, Melanophryniscus, Oreophrynella, Osornophryne, Rhamphophryne) are made and some very tentative remarks on their relationships are ventilated.
Tipo: Article / Letter to the editor Palavras-chave: Andes; Neotropics; 42.82.
Ano: 1985 URL: http://www.repository.naturalis.nl/record/318357
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A new morphological character of superior claspers to differentiate GLOSSINA PALLIDIPES Austen from GLOSSINA LONGIPALPIS Wiedemann (DIPTERA : GLOSSINIDAE) IRD
Challier, Albert; Lambrecht, F.L..
Tipo: Text Palavras-chave: TAXONOMIE; CLE DE DETERMINATION; MALE; GENITALIA.
Ano: 1985 URL: http://www.documentation.ird.fr/hor/fdi:24586
Registros recuperados: 3.482
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