Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Strokenteelt klaar voor de praktijk : aardappel drie tot tien dagen later branden
Apeldoorn, D.F. van; Rossing, W.A.H. ; Oomen, Gerard - \ 2017
Ekoland (2017)5. - ISSN 0926-9142 - p. 10 - 11.
strokenteelt - aardappelen - akkerbouw - phytophthora - zomertarwe - teeltsystemen - landbouw - biologische landbouw - teelt - strip cropping - potatoes - arable farming - spring wheat - cropping systems - agriculture - organic farming - cultivation
Na de eerste verkenningen met het telen in stroken zijn onderzoeken naar de effecten ervan verder uitgebreid. Inmiddels zijn er meerdere strokenproeven verdeeld over vier locaties – Droevendaal, ERF, De Graanrepubliek en NZ27 – en zijn de verwachte voordelen van dit teeltsysteem bevestigd. Afhankelijk van de inrichting van het bedrijf en aansluitende mechanisatie lijkt strokenteelt klaar voor de praktijk.
Duurzame beheersing van phytophthora : Resistentiemanagement blijft noodzakelijk
Pacilly, F.C.A. - \ 2017
Ekoland (2017)5. - ISSN 0926-9142 - p. 22 - 23.
aardappelen - resistentie van variëteiten - gewasbescherming - phytophthora - akkerbouw - teelt - biologische landbouw - potatoes - varietal resistance - plant protection - arable farming - cultivation - organic farming
De Wageningse promovenda Francine Pacilly doet onderzoek naar phytophthorabeheersing. Ze ontwikkelt een computermodel waarmee je kan onderzoeken wat het effect is van bepaalde maatregelen. Afgelopen winter is het model getest met hulp van biologische en gangbare aardappeltelers. In dit artikel meer achtergronden over het model en de ervaringen uit de workshops met de telers.
Is there life after hype for Jatropha? Exploring growth and yield in Indonesia
Tjeuw, Juliana - \ 2017
University. Promotor(en): Ken Giller; Meine van Noordwijk, co-promotor(en): Maja Slingerland. - Wageningen : Wageningen University - ISBN 9789463431927 - 223
fuel crops - jatropha curcas - crop yield - new crops - feasibility studies - indonesia - cultural methods - cultivation - disincentives - biobased economy - cropping systems - intercropping - brandstofgewassen - gewasopbrengst - nieuwe cultuurgewassen - haalbaarheidsstudies - indonesië - cultuurmethoden - teelt - belemmeringen - teeltsystemen - tussenteelt

Jatropha curcas L. is a biofuel crop that has not lived up to expectations due to a combination of hype and disappointment and biophysical factors. This PhD thesis is based on the plant production component of the JARAK programme which aimed to bridge the gap between truth and fiction. This study reviewed the jatropha hype and disappointment and further investigated the hypothesis that jatropha growth and yield are limited by biophysical factors of plant characteristics, cropping systems, and management. My review of the hype and disappointment shows that despite the high expectations fuelled by market pull and technology push, and numerous actors, the commercial potential for jatropha is limited by policy and governance, economics, social, technology, logistical, and environmental. A study of the biophysical components confirms that no current varieties suited to different cropping systems and locations are available. Jatropha aboveground biomass is partitioned predominantly into a structure of stem, branches, and twigs. The below to aboveground biomass ratio was 0.5 and fruit which was found only on productive twigs accounted for the smallest portion of biomass measured. Seed yields were disappointingly small (109 kg ha-1) and were largest in monoculture, followed by intercropping and hedgerows in that order, although yields were influenced by age and management of pruning and fertiliser. Seed yield across the three cropping systems can be predicted using plant height and the number of productive twig/branch, although the number of inflorescence clusters per productive twig may be important. Intercropping between jatropha and maize (Zea mays L.) resulted in competition for resources both belowground and aboveground that reduced maize yields. Shoot pruning was effective in managing aboveground competition, while root pruning and root barriers effectively managed competition belowground. Leaf prunings provided a limited, but positive fertility effect on maize yield comparable to 21 kg N ha-1. Jatropha - maize intercropping has potential for long-term productivity provided management practices such as fertiliser, pruning, and planting density can be developed to minimise competition and enhance complementarity. Based on my review of the jatropha hype and disappointment and my biophysical research results, the planting of jatropha by smallholders, or as a plantation crop cannot be recommended. Once the issues I highlight have been resolved and market confidence restored, jatropha may finally become a commercial source of biodiesel able to provide improved socio-economic and environmental benefits.

Grasklaverteelt motor voor samenwerking en klimaatadaptatie : 'climatecafe' evalueert samenwerking akkerbouw- en veeteeltbedrijven
Wit, Jan de; Adelhart Toorop, R.L. de - \ 2016
Ekoland (2016)12. - ISSN 0926-9142 - p. 20 - 21.
klimaatadaptatie - klimaatverandering - samenwerking - grasklaver - teelt - biologische landbouw - gewassen - gewasbescherming - akkerbouw - veehouderij - climate adaptation - climatic change - cooperation - grass-clover swards - cultivation - organic farming - crops - plant protection - arable farming - livestock farming
Het wordt natter en warmer in Nederland voorspelt het KNMI. Is de biologische boer bezig met deze verandering? Dat valt wel mee. Er wordt gewerkt aan een goede bodemkwaliteit en structuur. Dat draagt bij aan het aanpassingsvermogen aan een veranderend klimaat (‘adaptatie’). Grasklaver als rustgewas helpt de akkerbouwer daarbij, zo blijkt ook uit modelberekeningen.
Methodology for estimating emissions from agriculture in the Netherlands. : Calculations of CH4, NH3, N2O, NOx, PM10, PM2.5 and CO2 with the National Emission Model for Agriculture (NEMA)
Vonk, J. ; Bannink, A. ; Bruggen, C. van; Groenestein, C.M. ; Huijsmans, J.F.M. ; Kolk, J.W.H. van der; Luesink, H.H. ; Oude Voshaar, S.V. ; Sluis, S.M. ; Velthof, G.L. - \ 2016
Wageningen : Statutory Research Tasks Unit for Nature & the Environment (WOt-technical report 53) - 164 p.
air pollutants, greenhouse gases, livestock, crops, animal housing, manure storage, manure application, inorganic fertilizer, enteric fermentation, manure management, agricultural soils, liming, NIR, CRF, IIR, NFR - landbouw - gewassen - landbouwgronden - vee - huisvesting, dieren - dierlijke meststoffen - rundveemest - mestverwerking - begrazing - broeikasgassen - luchtverontreinigende stoffen - emissie - ammoniakemissie - kooldioxide - methaan - anorganische meststoffen - fermentatie - bekalking - nederland - compost - rioolslib - teelt - oogstresten - rijp worden - agriculture - crops - agricultural soils - livestock - animal housing - animal manures - cattle manure - manure treatment - grazing - greenhouse gases - air pollutants - emission - ammonia emission - carbon dioxide - methane - inorganic fertilizers - fermentation - liming - netherlands - composts - sewage sludge - cultivation - crop residues - ripening
The National Emission Model for Agriculture (NEMA) is used to calculate emissions to air from agricultural activities in the Netherlands on a national scale. Emissions of ammonia (NH3) and other N-compounds (NOx and N2O) from animal housing, manure storage, manure application and grazing are assessed using a Total Ammoniacal Nitrogen (TAN) flow model. Furthermore, emissions from application of inorganic N-fertilizer, compost and sewage sludge, cultivation of organic soils, crop residues, and ripening of crops are calculated. NEMA is also used to estimate emissions of methane (CH4) from enteric fermentation and manure management, particulate matter (PM) from manure management and agricultural soils, and carbon dioxide
(CO2) from liming. Emissions are calculated in accordance with international guidance criteria and reported in an annual Informative Inventory Report (IIR; for air pollutants) and National Inventory Report (NIR; for greenhouse gases). This methodology report describes the outline and backgrounds of the emission
calculations with NEMA
Purifying manure effluents with duckweed
Timmerman, M. ; Hoving, I.E. - \ 2016
Wageningen UR Livestock Research (Livestock Research rapport 942) - 27 p.
animal manures - effluents - lemna - aquatic weeds - feeds - nutrients - ingredients - animal feeding - animal nutrition - waste water - biogas - biomass production - cultivation - biobased economy - dierlijke meststoffen - afvoerwater - schadelijke waterplanten - voer - voedingsstoffen - ingrediënten - diervoedering - diervoeding - afvalwater - biomassa productie - teelt
The objective of this study was to perform a short literature survey to provide information about purifying manure effluents with duckweed with regard to varieties, cultivation, harvesting methods, utilization and valorisation of duckweed. The results of the study show that duckweed can be used to recuperate nutrients from manure effluents and that the concerning duckweed can be utilized as a source of feed, energy and ingredients
Handboek snijmaïs
Schooten, H.A. van; Philipsen, A.P. ; Groten, J.A.M. - \ 2015
Wageningen UR Livestock Research (Handboek / Wageningen UR Livestock Research 27) - 199 p.
voederkwaliteit - maïs - voedergewassen - maïskuilvoer - zea mays - rassen (planten) - rassenlijsten - teeltsystemen - teelt - plantenvoeding - bemesting - rentabiliteit - melkveehouderij - akkerbouw - forage quality - maize - fodder crops - maize silage - varieties - descriptive list of varieties - cropping systems - cultivation - plant nutrition - fertilizer application - profitability - dairy farming - arable farming
Na gras is snijmaïs het belangrijkste gewas voor de melkveehouderij. Dit handboek beschrijft de actuele stand van zaken over teelt, oogst, voeding en economie van snijmaïs.
Greenport Nedervanille
Noort, F.R. van - \ 2015
Wageningen UR Glastuinbouw
glastuinbouw - specerijplanten - vanilla planifolia - biologische productie - teelt - greenhouse horticulture - spice plants - biological production - cultivation
NederVanille is een project waarin telers, onderzoekers en een afnemer bezig zijn met het ontwikkelen van Vanilleteelt in kassen. Met medewerking van Wageningen UR Glastuinbouw, en Innovatiemotor Greenport Aalsmeer.
In search of compact pot plants without chemicals : control possible by manipulating DIF and DROP
Heuvelink, E. ; Kierkels, T. - \ 2015
In Greenhouses : the international magazine for greenhouse growers 4 (2015)1. - ISSN 2215-0633 - p. 40 - 41.
glastuinbouw - potplanten - teelt - cultuurmethoden - cultivars - plantenontwikkeling - groeivertraging - groeiremmers - plantengroeiregulatoren - temperatuur - lichtregiem - greenhouse horticulture - pot plants - cultivation - cultural methods - plant development - growth retardation - growth inhibitors - plant growth regulators - temperature - light regime
Alternatives to growth inhibitors for pot plants are welcome. Scientific research points to cultivation practises that can inhibit growth. These offer possibilities where breeding fails to provide a solution.
Smart Seafood
Ketelaars, J.J.M.H. ; Tacken, W. - \ 2014
zout water - voedselproductie - nieuwe producten - zoutwaterlandbouw - landbouw - nieuwe voedingsmiddelen - alternatieve landbouw - teelt - saline water - food production - new products - saline agriculture - agriculture - novel foods - alternative farming - cultivation
Met de slogan ‘Land in Zee’ profileert de provincie Zeeland zich als de plek waar de zee altijd en overal dichtbij is. Die nabijheid nodigt uit om te profiteren van de unieke mogelijkheden van zoutwater voor recreatie en natuur, maar ook voor de productie van voedsel. Met het programma Smart Seafood wil de provincie slim gebruik van zoutwater en zilte omstandigheden binnendijks bevorderen. Dat kan door kennis en kennisontwikkeling te verbinden met ondernemerschap. Waar liggen de kansen voor nieuwe producten uit een zout of zilt milieu?
Extensive literature search on cropping practices of host plants of some harmful organisms listed in Annex II A II of Directive 2000/29/EC
Derkx, M.P.M. ; Brouwer, J.H.D. ; Breda, P.J.M. van; Heijerman-Peppelman, G. ; Heijne, B. ; Hop, M.E.C.M. ; Wubben, C.F.M. - \ 2014
Parma, It. : EFSA (EFSA supporting publication 2014:EN-600) - 118
fruitgewassen - vruchtbomen - hopbellen - teeltsystemen - teelt - gewasbescherming - plantenvermeerdering - landen van de europese unie - literatuuroverzichten - fruit crops - fruit trees - hops - cropping systems - cultivation - plant protection - propagation - european union countries - literature reviews
The European Commission is currently seeking advice from EFSA (Mandate M-2012-0272) to assess for Arabis mosaic virus, Raspberry ringspot virus, Strawberry latent ringspot virus, Tomato black ring virus, Strawberry mild yellow edge virus, Strawberry crinkle virus, Daktulosphaira vitifoliae, Eutetranychus orientalis, Parasaissetia nigra, Clavibacter michiganensis spp. michiganensis, Xanthomonas campestris pv. vesicatoria, Didymella ligulicola and Phytophthora fragariae the risk to plant health for the EU territory and to evaluate the effectiveness of risk reduction options in reducing the level of risk. In addition, the Panel is requested to provide an opinion on the effectiveness of the present EU requirements against these organisms laid down in Council Directive 2000/29/EC. As a consequence EFSA needs insight in the cropping practices of Citrus spp., Fragaria x ananassa, Ribes spp., Rubus spp., Vaccinium spp., Humulus lupulus, Vitis vinifera, Prunus armeniaca, P. avium, P. cerasus, P. domestica and P. persica, which are host plants for these pests. An extensive and systematic literature search was done in which scientific and grey/technical literature was retrieved from the 28 EU Member States, Iceland and Norway. All references were stored in EndNote libraries, separately for scientific literature and grey/technical literature. For each reference information is provided on the source/search strategy, the crop, the country, the topic (cropping practice, propagation, protection or irrigation (only for Citrus)) and protected cultivation vs. field production. Yields of references depended on the crop and on the country. Over 27,000 references were provided to EFSA. This allows EFSA to quickly find information on crop production, both indoors and outdoors, of all crops that were studied in this extensive literature search. The data can be used by EFSA for the present mandate, but are also an excellent basis for other current and future mandates.
Moestuin op mars lijkt haalbaar
Kleis, R. ; Wamelink, G.W.W. - \ 2014
Resource: weekblad voor Wageningen UR 8 (2014)10. - ISSN 1874-3625 - p. 9 - 9.
landbouwplantenteelt - buitenaardse bodemtypen - bodem-plant relaties - teelt - experimenten - crop husbandry - soil types (extraterrestrial) - soil plant relationships - cultivation - experiments
Ruimtepioniers die hun eigen groenten willen kweken, kunnen waarschijnlijk beter op Mars terecht dan op de maan. Tuinkers kiemt, bloeit en vormt zaad op Marsgrond. Maanbodem is niet zuur genoeg voor plantengroei.
Improving the shallot and hot pepper cultivation system in the coastal plain of Northern Java
Putter, H. de; Witono, A. - \ 2013
Wageningen : Wageningen UR (vegIMPACT report 1) - 18
sjalotten - peper - teelt - groenteteelt - indonesië - handel - boerenmarkten - marketing - rentabiliteit - inkomen - jaarrondproductie - aanbod - shallots - pepper - cultivation - vegetable growing - indonesia - trade - farmers' markets - profitability - income - all-year-round production - supply
This report aims to improve cultivation and to enhance farmers' income in the Brebes region of Northern Java. First, a brief description of vegetable cultivation in the Brebes region is given. Also profits of vegetable cultivation are discussed and bottlenecks in the current cultivation system. In shallot and hot pepper cultivation a main constraint is the alternating change in land use. With rice cultivation the land is levelled and flooded and with vegetable cultivation raised beds are made. As a result problems are present with soil fertility, hence high fertilizer rates are applied and poor crop growth is present. Another constraint is the small field size per farm, where only at a few days a year harvest takes place. As a result individual farmers are not able to supply year round large quantities and therefore are unable to make arrangements with traders. In case farmers can organize themselves as a group they can produce year round a good quantity making it interesting for traders to make arrangements with this farmers’ group. Based on the conclusions it is proposed to start up activities to address the following topics: - Permanent vegetable crop cultivation system. - Year round supply of product and direct linking to a market.
Bemestingsadvies stamslabonen industrieteelt : tussenrapportage proefjaar 2012
Evenhuis, A. ; Verstegen, H.A.G. ; Wilms, J.A.M. ; Topper, C.G. - \ 2013
Lelystad : Praktijkonderzoek Plant & Omgeving, Business Unit AGV - 16
bonen - phaseolus vulgaris - industriële gewassen - vollegrondsteelt - groenteteelt - cultuurmethoden - teelt - bemesting - schimmelziekten - gewasbescherming - plantenziekteverwekkende schimmels - botrytis cinerea - sclerotinia - maximum opbrengst - opbrengst - nederland - beans - industrial crops - outdoor cropping - vegetable growing - cultural methods - cultivation - fertilizer application - fungal diseases - plant protection - plant pathogenic fungi - maximum yield - outturn - netherlands
Vaststellen van optimale bemesting en gewasbescherming tegen Sclerotina en Botrytis voor de teelt van een sterk en gezond bonengewas op zand en klei met een maximale kwalitatieve en kwantitatieve opbrengst. Veldproeven uitgevoerd op de Proefboerderijen te Vredepeel en Lelystad van het PPO-agv.
Cultivation and diseases of Proteaceae: Leucadendron, Leucospermum and Protea
Crous, P.W. ; Denman, S. ; Taylor, J.E. ; Swart, L. ; Bezuidenhout, C.M. ; Hoffman, L. ; Palm, M.E. ; Groenewald, J.Z. - \ 2013
Utrecht, The Netherlands : CBS-KNAW Fungal Biodiversity Centre (CBS biodiversity series 13) - ISBN 9789070351953 - 360
proteaceae - leucadendron - leucospermum - protea - snijbloemen - teelt - plantenziekten - plantenziekteverwekkende schimmels - taxonomie - identificatie - determinatietabellen - gastheerreeks - plantenziekteverwekkende bacteriën - ziektebestrijding - fytosanitair beleid - verwelkingsziekten - wortelrot - kanker (plantenziektekundig) - cut flowers - cultivation - plant diseases - plant pathogenic fungi - taxonomy - identification - keys - host range - plant pathogenic bacteria - disease control - phytosanitary policies - wilts - root rots - cankers
Proteaceae represent a prominent family of flowering plants in the Southern Hemisphere. Because of their beauty, unique appearance, and relatively long shelf life, Proteaceae cut-flowers have become a highly desirable crop for the export market. The cultivation of Proteaceae is a thriving industry that provides employment in countries where these flowers are grown, often in areas that are otherwise unproductive agriculturally. Diseases cause a loss in yield, and also limit the export of these flowers due to strict phytosanitary regulations. In this publication the fungi that cause leaf, stem and root diseases on Leucadendron, Leucospermum and Protea are treated. Data are provided pertaining to the taxonomy, identification, host range, distribution, pathogenicity, molecular characteristics and control of these pathogens. Taxonomic descriptions and illustrations are provided and keys are included to distinguish species in genera where a number of species affect Proteaceae. Disease symptoms are described and colour photographs are included. Where known, factors that affect disease epidemiology are discussed. Disease management strategies are also presented that will assist growers and advisors in making appropriate choices for reducing disease in specific areas. Information is also provided relating to crop improvement, cultivation techniques, harvesting and export considerations. Further development and expansion of this industry depends on producing and obtaining disease-free germplasm from countries where these plants are indigenous. For that reason it is important to document the fungi that occur on Proteaceae, and to establish the distribution of these fungi. These data are essential for plant quarantine services for use in risk assessments.
Switchgrass Ukraine : overview of switchgrass research and guidelines
Elbersen, H.W. ; Kulyk, M. ; Poppens, R.P. ; Lesschen, J.P. ; Kraisvitnii, P. ; Galytska, M. ; Rii, O. ; Roik, M.V. ; Kurylo, V.L. ; Morozov, O.V. ; Smirnykh, V.M. ; Gorobets, A.M. ; Gerasymenko, O.V. - \ 2013
Wageningen : Wageningen UR - Food & Biobased Research - 26
brandstofgewassen - panicum virgatum - biomassa productie - teelt - cultuurmethoden - veldproeven - oekraïne - biobased economy - proeven op proefstations - fuel crops - biomass production - cultivation - cultural methods - field tests - ukraine - station tests
Between 2008 and 2013 switchgrass experiments have been conducted in Ukraine which have showed what varieties are locally adapted, how switchgrass can be established, what yields may be expected, what row space should be used, what seeding rate is optimal, etc. In the experiments the Ukrainian experts have gained much experience in establishing switchgrass and in management of switchgrass. This has made it possible to make a description of switchgrass management in Ukraine and to establish with success large fields. Further information is still needed, especially with respect to efficient harvesting on a larger scale and storage and conversion into pellets and conversion to energy.
Switchgrass (Panicum virgatum L.) : a perennial biomass grass for efficient production of feedstock for the biobased economy
Elbersen, H.W. ; Poppens, R.P. ; Bakker, R.R.C. - \ 2013
Utrecht : NL Agency - 27
panicum virgatum - brandstofgewassen - teelt - teelthandleidingen - biomassa productie - biobased economy - akkerbouw - fuel crops - cultivation - cultivation manuals - biomass production - arable farming
Teelthandleiding van Switchgrass. Er wordt ingegaan op het huidige gebruik als biomassagewas, teeltmanagement, oogst en logistiek, toepassingen, economie en duurzaamheid.
Bemesting Alstroemeria: Invloed van EC en K:Ca verhoudingin de teelt van Alstroemeria op kokossubstraat
Helm, F.P.M. van der; Labrie, C.W. ; Mourik, N.M. van; Groot, M. de; Voogt, W. - \ 2013
Bleiswijk : Wageningen UR Glastuinbouw (Rapporten WUR GTB 1249) - 74
alstroemeria - alstroemeriaceae - bemesting - teelt - substraten - kokosnootproducten - elektrische geleidbaarheid - kalium - calcium - glastuinbouw - nederland - fertilizer application - cultivation - substrates - coconut products - electrical conductivity - potassium - greenhouse horticulture - netherlands
In 2010 is budget beschikbaar gesteld door het Productschap Tuinbouw voor een 2 jaar durend onderzoek om te bepalen wat de juiste verhouding K:Ca bij verschillende EC-niveau’s is gedurende het jaar. Er is een twee jaar durende kasproef uitgevoerd waarin een K:Ca verhouding van 5:1, 1:1 en 1:3 is gerealiseerd bij een EC van 2 (laag) en 3 (hoog) mS/ cm. In het onderzoek gaf de hoge EC op een kokossubstraat bij een K:Ca verhouding van 1:1 of lager betrouwbaar meer productie in stuks en in kilo’s geoogst gewicht dan een lage EC. De productie bij een K:Ca verhouding van 5:1 was altijd lager, de EC had hierop geen invloed. Daarnaast was bij een hoge EC en een K:Ca verhouding van 1:3 in de voedingsoplossing zowel productie en takgewicht per 80 cm het hoogste. Ook was de lengte van het gewas in de zomer duidelijk hoger als gevolg van een lagere K:Ca in de voedingsoplossing. Met het oog op ziektegevoeligheid gaf een voedingsoplossing met een K:Ca verhouding van 1:3 een robuuster gewas dat minder vatbaar was voor vochtblaadjes en bloemschade door klimaat wisselingen en hoge instraling. Daarnaast was bij hoge EC het gewas gevoeliger voor vochtblaadjes, maar dit effect was minder sterk dan het effect van een hoge K:Ca verhouding. Ten slotte gaf de lage EC in dit onderzoek meer problemen met uitval door Fusarium.
Keten koolzaad
Meuffels, G.J.H.M. - \ 2013
koolzaad - brandstofgewassen - rassenproeven - teelt - olieleverende planten - biobased economy - akkerbouw - rape - fuel crops - variety trials - cultivation - oil plants - arable farming
Poster met onderzoeksinformatie.
Keten energiemaïs
Meuffels, G.J.H.M. - \ 2013
brandstofgewassen - maïs - rassenproeven - teelt - biobased economy - akkerbouw - fuel crops - maize - variety trials - cultivation - arable farming
Poster met onderzoeksinformatie.
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