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Registros recuperados: 14
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Análise da estrutura da produção de pimenta-do-reino no Estado do Pará - 1977/78. Infoteca-e
HOMMA, A. K. O.; MIRANDA FILHO, L..
bitstream/item/57877/1/CPATU-ComTec20.pdf
Tipo: Comunicado Técnico (INFOTECA-E) Palavras-chave: Pimenta-do-reino; Cultivo; Tomé-Açu; Região Guajarina; Região do Salgado; Região Bragantina; Pará; Black papper; Production; Economy; Crop; Cultivation.; Acara; Economia; Piper Nigrum; Produção.; Amazonia..
Ano: 1979 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/385144
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Conservation tillage and controlled traffic AgEcon
The following review is an financial assessment of an Australian Centre for International Agricultural Research (ACIAR) conservation tillage and controlled traffic research project which was conducted in China (for the conservation tillage component) and Australia (for the controlled traffic component) during the period 1993–1996, inclusive. The project—No. 9209—was implemented by staff from the Beijing Agricultural and Engineering University and the Shanxi Agricultural Machinery Bureau (in China) and the University of Queensland (in Australia). The overall aim of the joint project was to develop and evaluate conservation and zone (controlled traffic) tillage techniques for sustainable dryland grain production in China and Australia. Australian dryland...
Tipo: Book Palavras-chave: Conservation tillage; Controlled traffic; Conservation agriculture; China; Australia; Grain production; Dryland; Crop; Soil conservation; Crop Production/Industries; Farm Management; International Development.
Ano: 1998 URL: http://purl.umn.edu/47502
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Cost Efficiency and Scope Economies of Crop and Livestock Farms in Missouri AgEcon
Wu, Shunxiang; Prato, Anthony A..
This study investigates productive efficiency for a sample of Missouri crop-only (specialized) and integrated crop-livestock (diversified) farms using a cost frontier approach. Results suggest that significant cost inefficiency exists among sample farms. Lower cost efficiency in both types of farms was attributed to improper scale of operations and mis-allocation of inputs. On average, diversified farms were as technically and scale efficient as specialized farms. Lower allocative efficiency diluted gains in technical efficiency and resulted in greater cost inefficiency for diversified farms than for specialized farms. Technical efficiency was independent of farm size, whereas allocative, scale, and scope efficiencies were not.
Tipo: Journal Article Palavras-chave: Cost efficiency; Crop; Livestock; Missouri farms; Scope economies; Agricultural and Food Policy; Crop Production/Industries; Industrial Organization; Livestock Production/Industries; Production Economics; Q12; R32.
Ano: 2006 URL: http://purl.umn.edu/43906
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Defasagem entre as produtividades real e potencial do algodoeiro herbáceo: limitações morfológicas, fisiológicas e ambientais. Infoteca-e
BELTRÃO, N. E. de M.; AZEVEDO, D. M. P. de.
Fatores limitantes relacionados com a morfologia, a organografia e arquiteture do algodoeiro herbaceo; fatores limitantes relacionados com -a fisiologia e a bioquimica da planta do algodoeiro herbaceo; fatores limitantes relacionados com as condicoes do ambiente; consideracoes holoticas envolvendo fatores da planta e do ambiente.
Tipo: Livro técnico (INFOTECA-E) Palavras-chave: Herbaceo; Taxas de Crescimento; Cultura; Fotorrespiracao; Trofofilos; Dossel; Balanco; Assimilado; Limitacao incontrolavel; Desenvolvimento; Brasil; Paraiba; Annual cotton; Production; Growth rate; Reespiration; Assimilation; Crop; Levll; Not controllable; Limitation; Growth; Deelopment.; Algodão; Bioquímica; Crescimento; Fotossíntese; Fisiologia Vegetal; Gossypium Hirsutum; Metabolismo; Respiração.; Produção; Biochemistry; Canopy; Leaves; Physiology.; Photosynthesis; Photorespiration; Metabolism.
Ano: 1993 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/264934
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DIFFERENTIAL TOLERANCE OF PUMPKIN SPECIES TO BENTAZON, METRIBUZIN, TRIFLURALIN, AND OXYFLUORFEN Planta Daninha
NOSRATTI,I.; MAHDAVI-RAD,S.; HEIDARI,H.; SAEIDI,M..
ABSTRACT Response of pumpkin species including Cucurbita pepo convar. Pepo, Cucurbita moschata Duch, Cucurbita pepo, Cucurbita maxima, and Lagenaria vulgaris to bentazon, trifluralin, metribuzin, and oxyfluorfen was evaluated in Outdoor pot experiments in 2014 and 2015. Different postemergence doses (bentazon and oxyfluorfen) and preplant incorporated (metribuzin and trifluralin) herbicides were evaluted on pumpkin species at various growth stages. Results showed that the sensitivity of pumpkins species to applied herbicide varied greatly among tested species. On overall, dry weights of Cucurbita spp. were reduced by 12.50%, 48.60%, 23%, and 73.13% when pumpkin was treated with trifluralin, metribuzin, bentazon and oxyfluorfen, respectively. Pumpkin crops...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Broadleaf weeds; Crop; Dominant weeds; Sensitivity.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100264
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Dynamic Econometric Models of Manitoba Crop Production and Hypothetical Production Impacts for CAIS AgEcon
Coyle, Barry T.; Wei, Ran; Rude, James.
This study analyzes the impact of the Canadian Agriculture Income Stabilization (CAIS)program. The study begins with a specification of dynamic crop production that decomposes static short run crop acreage allocation decisions and dynamic crop yield affects. The modelling framework accommodates risk aversion, price uncertainty, and applies recent aggregation theory to aggregate weather data. Using this framework an analytical model of the impacts of CAIS on crop production is developed. Hypothetical impacts of are simulated using an aggregate Manitoba data set. The results show that CAIS has a substantial impact on the shadow prices of both inputs and outputs. These shadow price effects resulted in a 4 percent increase in long run wheat and barley yields...
Tipo: Working or Discussion Paper Palavras-chave: Canada; CAIS; Risk; Crop; Production; Agricultural and Food Policy; International Relations/Trade; Production Economics; Risk and Uncertainty.
Ano: 2008 URL: http://purl.umn.edu/46630
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Effect of acidified drinking water on the recovery of Salmonella enteritidis from broiler crops Rev. Bras. Ciênc. Avic.
Avila,LAF de; Nascimento,VP do; Canal,CW; Salle,CTP; Moraes,HL de S.
Crop is a known source of Salmonella contamination during broiler carcass processing. The effect of drinking water acidification by lactic acid or citric acid or a combination of those with cupric sulfate and d-limonene in the reduction of Salmonella Enteritidis (SE) recovered from the crop of broilers was evaluated. Treatments were administered during 8 hours of preslaughter fasting period (Experiments I and II) and during the last 32 hours of preslaughter (Experiment III). It was observed that acidification reduced water intake when treatments began at preslaughter feed withdrawal, and affected the possible reducing effect of these acids on SE recovering (Experiments I and II). Water intake during preslaughter feed withdrawal was not affected when...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Broilers; Citric acid; Crop; Cupric sulphate; D-Limonene; Lactic acid; Organic acids; Pre-slaughter feed withdrawal; Salmonella enteritidis.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2003000300005
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Investigation of low cost solar collector for drying vegetables in rural areas CIGR Journal
Eke, Akachukwu Ben.
Despite the numerous solar dryers reported by researchers in Nigeria, farmers in Zaria Nigeria continue to dry tomato by traditional open sun drying method, the inherent problems associated with this method notwithstanding.  Therefore this research is aimed at investigating suitable solar collector material that is available, affordable and can easily be worked on by rural farmers.  Metal, wood, cement and mud which are commonly available local materials were used to fabricate four types of solar dryers and the dryers were mounted truly facing south.  Sliced tomato samples were used for performance test of the dryers.  Moisture content of the samples, dryer temperature, wind speed, relative humidity and solar radiation were monitored at 2 hours intervals. ...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural and Bio-Resources Engineering Solar; Energy; Collector; Crop; Drying; Drying efficiencies..
Ano: 2014 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/1964
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Modificacoes no sistema de cultivo do algodoeiro herbaceo no nordeste brasileiro, visando a convivencia com o bicudo. Infoteca-e
BELTRAO, N. E. de M.; VIEIRA, D. J.; AZEVEDO, D. M. P. de; NOBREGA, L. B. da.
bitstream/item/33371/1/MODIFICAOES-NO-SISTEMA.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) Palavras-chave: Herbaceo; Cultivo; Consorciacao; Controle ecologico; Configuracao; Gosssypium hirsutum; Brasil; Paraiba; Boaventura; Pernambuco; Annual cotton; Crop; Pest; Boll weevil; Fiber; Quality; Ecology control; Cost; Production; Row; Patterns.; Algodão; Anthonomus Grandis; Bicudo; Custo de Produção; Fibra; Plantio; Praga; Qualidade; Surubim.; Sousa; Intercropping..
Ano: 1992 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/262894
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Nutrição mineral e adubação da cultura do melão. Infoteca-e
FARIA, C. M. B. de.
Trata de sintetizar e divulgar o que existe disponível na literatura sobre a adubação da cultura do melão. Desta forma, são abordados aspectos relacionados com solo, nutrição mineral, níveis, formas e épocas de aplicação de nutrientes.
Tipo: Circular Técnica (INFOTECA-E) Palavras-chave: Nutrição mineral; Cultivo; Mineral nutrition; Crop; Melon.; Melão; Adubação; Cucumis Melo.; Fertilizer application; Melons..
Ano: 1990 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/131988
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PHOTOSYNTHETIC PERFORMANCE AND LEAF WATER POTENTIAL OF GULUPA (Passiflora edulis Sims, PASSIFLORACEAE) IN THE REPRODUCTIVE PHASE IN THREE LOCATIONS IN THE COLOMBIAN ANDES Acta biol.Colomb.
PEREZ MARTINEZ,Laura Victoria; MELGAREJO,Luz Marina.
Gulupa, Passiflora edulis Sims (Passifloraceae), is an important fruit due to its organoleptic and nutritional characteristics and its demand in the international market; however, very few studies have been conducted for studying its Ecophysiology. Until now, this crop has spread throughout the country through empirical knowledge without data that indicate the zones that are more suitable for its cultivation. For this reason, gas exchange, chlorophyll fluorescence (photosystem II operating efficiency and maximum quantum efficiency of photosystem II photochemistry) and leaf water potential were measured in three different locations of Cundinamarca department (Chia [2610 m a.s.l., 14 °C], Granada [2230 m a.s.l., 15 °C] and Tena [2090 m a.s.l., 17 °C]), whose...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chlorophyll fluorescence; Crop; Horticulture; Passion fruit; Photosynthesis; Plant physiology; Water.
Ano: 2015 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2015000100019
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Potential limitations for potato yields in raised soil field systems near Lake Titicaca Scientia Agricola
Lozada,Diego Sánchez de; Baveye,Philippe; Lucey,Robert F.; Mamani,Ricardo; Fernandez,Walter.
During the last two decades, various non-governmental organizations have strongly encouraged Bolivian farmers in the Altiplano region near Lake Titicaca to resume the ancestral agricultural practice of constructing raised fields. In addition to improved drainage and possibilities this practice affords for sub-irrigation, advocated benefits of this system traditionally include frost mitigation and high crop yields. Until recently, reliable data to assess the extent of these benefits were unfortunately lacking. In this context, field experiments on raised fields were designed and carried out at two locations in the Bolivian Altiplano to obtain reliable potato yield and temperature data. Observed yields ranged from 2.73 to 10.80 t ha-1 at the first site,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Raised fields; Productivity; Frost mitigation; Crop.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000500005
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Recomendações da Comissão Centro Brasileira de Pesquisa de Trigo para o ano de 1988. Infoteca-e
REUNIÃO DA COMISSÃO CENTRO BRASILEIRA DE PESQUISA DE TRIGO, 4., 1987, São Paulo..
Planejamento da lavoura; Limites geográficos; Limites de altitude; Recomendações de cultivares; Época de plantio; Práticas culturais; Recomendações de calagem e adubação para trigo; Controle químico de doenças; Controle químico de pragas.
Tipo: Recomendação Técnica (INFOTECA-E) Palavras-chave: Cultivo; Congresso; Brasil; Crop; Congress.; Brazil; Wheat..
Ano: 1988 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/818045
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Soybean yield estimation by an agrometeorological model in a GIS Scientia Agricola
Berka,Luciana Miura Sugawara; Rudorff,Bernardo Friedrich Theodor; Shimabukuro,Yosio Edemir.
Agrometeorological models interfaced with the Geographic Information System - GIS are an alternative to simulate and quantify the effect of weather spatial and temporal variability on crop yield. The objective of this work was to adapt and interface an agrometeorological model with a GIS to estimate soybean [Glycine max (L.) Merr.] yield. Yield estimates were generated for 144 municipalities in the State of Paraná, Brazil, responsible for 90% of the soybean production in the State, from 1996/1997 to 2000/2001. The model uses agronomical parameters and meteorological data to calculate maximum yield which will be penalized under drought stress. Comparative analyses between the yield estimated by the model and that reported by the Paraná State Department of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Geographic information system; Municipalities; Weather; Crop.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000300003
Registros recuperados: 14
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