Groenekennis

Informatie voor professionals in voedsel en groen

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    Groenekennis - Informatie voor professionals in voedsel en groen

    Groenekennis bevat artikelen uit vaktijdschriften, rapporten, video’s, presentaties, posters en websites op het gebied van landbouw, visserij, groene ruimte en voeding. Groenekennis wordt dagelijks bijgewerkt en bevat ongeveer 500.000 bronnen.

    Groenekennis is de globale view over diverse deelbestanden. Groenekennis is gevuld met alle informatie uit Groen Kennisnet, de Hydrotheek, Tuinpad, IB archief, ARTIK, bioKennis, Kennisbank Plantaardige bronnen, Kennisbank Zeldzame landbouwhuisdieren en afgesloten documentatiebestanden zoals Land Bodem Water en Consumenten- en huishoudstudies.

    Groen Kennisnet is een zeer belangrijk onderdeel van Groenekennis. De doelstelling van Groen Kennisnet is kennis delen op het gebied van Voedsel en Groen te bevorderen en te faciliteren voor een breed publiek.

    Bronnen in Groenekennis kunnen direct opgevraagd worden via een geavanceerde zoekmachine met een 'google-achtige' interface. Met filters kan ingezoomd worden op diverse aspecten, zoals Trefwoord, Collectie, Jaar en Auteur. Bovendien biedt Groenekennis gebruikers de mogelijkheid om via de E-mail geattendeerd te worden op aanvullingen in specifieke vakgebieden.
    De Tijdschriftenlijst biedt een overzicht van tijdschriften waaruit de artikelen voor Groenekennis worden geselecteerd. Door te klikken op een titel krijgt u alle artikelen uit dat tijdschrift in de Groenekennis database getoond.
    Zoeken op kaart biedt een geografische ingang op de beschikbare publicaties over de binnen dit bestand onderscheiden gebieden.

    Groenekennis is onderdeel van het bibliotheeksysteem van WUR. Praktijkgerichte publicaties en rapporten van WUR komen daardoor automatisch beschikbaar. Daarnaast wordt de database doorlopend gevuld met voor het groen onderwijs bruikbare bronnen en artikelen, video’s en websites. Het percentage online is de laatste jaren gegroeid tot tweederde van de totale aanwas per jaar. Dit percentage groeit nog steeds.

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Organic vegetable production in the U.S.: certified growers and their practices \ American journal of alternative agriculture [Artikel]
Fernandez - Cornejo, J. \ 1998
In a survey of the US Dept of Agriculture in 1994, socioeconomic and production characteristics (f.i. age, education, experience, farm size, marketing channels) of a sample of certified organic farmers from 14 states were compared with conventional v ...
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Reduced chemical input cropping systems in the Southeastern United States: 3. Economic analysis \ American journal of alternative agriculture [Artikel]
King, L.D. \ Hoag, D.L. \ 1998
Evaluation of the profitability of several cropping systems during a 10-year period of an experiment comparing rotations and levels of purchased inputs. Continuous corn or sorghum, corn/wheat-soybean (2-year), and corn/wheat-soybean/corn/clover hay ( ...
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Growth of apple trees, nitrate mobility and pest populations following a corn versus fescue crop rotation \ American journal of alternative agriculture [Artikel]
Biggs, A.R. \ 1997
A comparison of the growth and establishment of four apple cultivars following two crop rotation systems. The conventional system consisted of a standard corn rotation accompanied by application of fertilizer and nematicide. In the alternative system ...
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Growth of corn roots under low-input and conventional farming systems \ American journal of alternative agriculture [Artikel]
Pallant, E. \ 1997
Two low-input farming systems and a conventional system were compared on their effects on root length density of corn in a silt loam soil in Pennsylvania. The two low-input systems used either animal manure or plowdown legumes as a nutrient source an ...
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Alternative production systems' effects on the K - factor of the Revised Universal Soil Loss Equation \ American journal of alternative agriculture [Artikel]
Fleming, K.L. \ 1997
The soil erodibility factor (K) is currently considered a constant for all soils in the same type, regardless of production practice. Pairs of alternatively and conventionally farmed fields on three loamy soil types were compared on the impact of the ...
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International Conference on Agricultural Production and Nutrition: abstracts and closing address \ American journal of alternative agriculture [Artikel]
1997
Abstracts of an international conference (March 1997, Boston, Massachusetts) on the ways that the nutritional value and quality of foods are affected by how they are produced. Quality encompasses not only biological and chemical characteristics, but ...
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Profile of organic dairy farming in Ontario \ American journal of alternative agriculture [Artikel]
Sholubi, Y.O. \ Stonehouse, D.P. \ Clark, E.A. \ 1997
Preliminary results of an ongoing study which documents the production and management strategies used on organic dairy farms in western Ontario, Canada. Farm size, profitability, cropping systems and crop rotations, weed control, soil and fertility m ...
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Organic versus conventional grain production in the mid-Atlantic: an economic and farming system overview \ American journal of alternative agriculture [Artikel]
Hanson, J.C. \ Lichtenberg, E. \ Peters, S.E. \ 1997
A farming systems trial has been conducted in Pennsylvania since 1981 to compare the profitability of organic and conventional cash grain production. The organic rotation currently exists of hairy vetch/corn, rye/soybean, and wheat; the conventional ...
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Sustainable agriculture in the Corn Belt: production-side progress and demand-side constraints \ American journal of alternative agriculture [Artikel]
Lighthall, D.R. \ 1996
Based on interviews with farmers a study was made of the forces that either impede or encourage low-input agriculture in three Corn Belt counties in north central Iowa. The region's commercial farmers appear split between family farmers who wish to a ...
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Inoculative release of anecic earthworms in a California orchard \ American journal of alternative agriculture [Artikel]
Werner, M. \ 1996
Comparison of the abundance and biomass of resident earthworm species, i.e the endogenic (subsurface-feeding) species Aporrectodea caliginosa and Microscolex dubius, under organic and conventional apple orchard management on a conversion study site i ...
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Evaluating the sustainability of alternative farming systems: a case study \ American journal of alternative agriculture [Artikel]
Ikerd, J. \ Devino, G. \ Traiyongwanich, S. \ 1996
Two scenarios were developed for farmland currently enrolled in the Conservation Reserve Program in Putnam County, Missouri: a conventional one and an environmentally sound one. The relative sustainability was assessed using three performance criteri ...
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Fertility management in dryland conservation cropping systems of the Pacific Northwest \ American journal of alternative agriculture [Artikel]
Rasmussen, P.E. \ 1996
Comparison of the effects of conventional tillage and of conservation tillage on the soil fertility relations in wheat cultivation in the Pacific Northwest of the US. Soil organic matter and water, crop growth, nutrient accumulation in soil, nutrient ...
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Combining alternative and conventional systems for environmental gains \ American journal of alternative agriculture [Artikel]
Painter, K.M. \ 1995
Two conventional cropping systems (winter wheat/drye peas and winter wheat/spring barley/drye peas) in Washington were compared with four alternative systems regarding profitability and environmental impacts (pesticide and nitrate leaching; soil eros ...
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The relative sustainability of alternative, conventional, and reduced-till farming systems \ American journal of alternative agriculture [Artikel]
Smolik, J.D. \ Dobbs, T.L. \ Rickerl, D.H. \ 1995
The agronomic, economic and ecological performance of 3 farming systems was compared in a 7-year period in norteastern South Dakota. The sustainability was evaluated regarding soil erosion, pollution potential, whole-farm productivity, energy use, en ...
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Soil quality and profitability of biodynamic and conventional farming systems: a review \ American journal of alternative agriculture [Artikel]
Reganold, J.A. \ 1995
Summary of data from studies comparing biodynamic and conventional farming systems in Europe, Australia, New Zealand, the United States and the Canary Islands. Two studies included organic management treatment with and without preparations. Biodynami ...
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An overwintering cover crop increases inoculum of VAM fungi in agricultural soil \ American journal of alternative agriculture [Artikel]
Galvez, L. \ 1995
Results of a low-input reduced tillage trial in Pennsylvania to determine how an overwintering cover crop of hairy vetch affects inoculum levels of vesicular-arbuscular mycorrhizal fungi in the soil. Tillage treatments were: moldboard plow, chisel-di ...
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Economic analysis of an areawide program for biological control of the alfalfa weevil \ American journal of alternative agriculture [Artikel]
White, J.M. \ 1995
Cost-benefit analysis of a national biological control program for the alfalfa weevil (Hypera postica) in the US. Parasitic wasps were released on a large scale during the 1980s by USDA/APHIS. Costs of insect control before and after parasite release ...
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Trap cropping to manage the red sunflower seed weevil in oilseed sunflower \ American journal of alternative agriculture [Artikel]
Brewer, G.J. \ Schmidt, G. \ 1995
In reduced-pesticide trials in North and South Dakota and Minnesota, early maturing sunflower was planted in the margins around commercial fields of oilseed sunflower to serve as a trap crop for the red sunflower seed weevil (Smicronyx fulvus). Trap ...
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Vaestgoetmodellen: Sweden's sustainable alternative for swine production \ American journal of alternative agriculture [Artikel]
Honeyman, M.S. \ 1995
Description of a system of pig production in Sweden that relies on straw, the animals' natural behaviour, group housing dynamics, and keen husbandry skills. The system is specific to producing feeder or weaner pigs of 25 to 30 kg for feeding in more ...
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Reduced chemical input cropping systems in the southeastern United States. 2. Effects of moderate rates of N fertilizer and herbicides, tillage, and delayed cover crop plow-down on crop yields \ American journal of alternative agriculture [Artikel]
King, L.D. \ 1994
In a long-term experiment from 1985 through 1992, reduced chemical input cropping systems were compared with current management practices to determine the agronomic feasability of substituting legumes and mechanical weed control for fertilizer N and ...
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