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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    Records 1 - 18 / 18

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    The Interplay of Individual Competencies and Organizational Structures in Enacting Stakeholder Orientation
    Wesselink, R. ; Dentoni, D. ; Shnayder, L. ; Aberson, W. ; Materia, V.C. - \ 2018
    Short-term rainfall forecasts as a soft adaptation to climate change in irrigation management in North-East India
    Mishra, A. ; Siderius, C. ; Aberson, K. ; Ploeg, M.J. van der; Froebrich, J. - \ 2013
    Agricultural Water Management 127 (2013). - ISSN 0378-3774 - p. 97 - 106.
    weather forecasts - seasonal rainfall - water management - rice - simulation - impact - model - productivity - resources - system
    We explored the potential of using short-term weather forecasts to increase irrigation efficiency in rice cultivation, as a potential adaptation option to future climate change. We used 5-day hypothetically perfect rainfall forecasts and 4-day real rainfall forecasts for 2007–2008 issued by the India Meteorological Department (IMD). The rainfall forecasts were incorporated into the agro-hydrological model SWAP (Soil Water Plant Atmosphere), to produce alternative irrigation schedules. The SWAP model was calibrated with data from field experiments at Kharagpur, North-East India. Rice yield simulations were performed for observed weather (1989–2009) and for a future climate with more dry spells and more intense rainfall events. The model revealed that basing the decision to irrigate rice on short-term weather forecasts could reduce average water application by 27% when 5-day perfect rainfall forecasts were used. Even though the real 4-day rainfall forecasts were not very accurate, their use also resulted in a reduction in irrigation water application. Using 5-day hypothetically perfect forecasts under future climate conditions led to a saving of 32% of irrigation water compared to water use under the current climate
    Duurzame Koolzaad¿ Diervoeder¿ Energieketens (DKDE) : een aanzet tot agrarische keteninrichting nieuwe stijl
    Janssens, S.R.M. ; Heetebrij, J.C.G. ; Aberson, H. - \ 2012
    raapzaadolie - koolzaad - projecten - agro-industriële ketens - ketenmanagement - haalbaarheidsstudies - biobrandstoffen - biobased economy - rapeseed oil - rape - projects - agro-industrial chains - supply chain management - feasibility studies - biofuels - biobased economy
    De ontwikkeling van een nieuw ingerichte DKDE zal leiden tot een verhoogd gewassaldo voor telers en tegelijkertijd tot het scheppen van nieuwe, innovatieve, duurzame bedrijvigheid op het platteland. Het primaire doel van een nieuw op te starten project is het verkennen en tot stand brengen van een dergelijke keten. In deze flyer gaat het om het verkennende deel: het haalbaarheidsonderzoek.
    Bijdrage tot de kennis van de chemische en botanische samenstelling van het hooi en van den invloed, welke enkele meststoffen daarop uitoefenen
    Daalen, C.K. van - \ 1928
    Wageningen University. Promotor(en): J.H. Aberson. - Utrecht : P. den Boer - 188
    hooi - groenvoeders - cum laude - hay - green fodders
    This study was concerned with the most important results of some fertilizer trials on grassland. It was established how the amount of hay gained from the trial fields was extremely divergent. The factors causing these differences and the influence of N, P and K on the chemical and botanical composition of the hay were examined. This was considered separately for each fertilizer. On the chemical composition, attention was especially to N, P, K, Ca and total ash. Part of the trial was on the influence of stage of cutting.

    This trial has been of great importance in the further development of grassland research in the Netherlands.

    Aberson, J.H. - \ 1927
    Zeitschrift für Pflanzenernährung, Düngung, Bodenkunde : zugleich Organ der Deutschen Bodenkundlichen Gesellschaft. B. Wirtschaftlich-praktischer Teil 6 (1927)14. - p. 405 - 407.
    Een onderzoek naar het voorkomen en de oorzaken van de verschijnselen, welke worden aangeduid met den naam "ontginningsziekte"
    Smith, W.S. - \ 1927
    Wageningen University. Promotor(en): J.H. Aberson. - Wageningen : Veenman - 149
    voedingsstoffentekorten - chlorose - plantenvoeding - voedingsstoffen - cum laude - nutrient deficiencies - chlorosis - plant nutrition - nutrients
    11 apparently diseased soils gave the same general symptoms of 'reclamation disease' with oats and peas in pot experiments. The number of microbes was smaller and the proportion fungi/microbes was always larger in diseased soils than in similar normal soils. As soil sterilisation brought no cure, the disease could not be ascribed to microbes. The widespread opinion that the disease occurred on a certain black peat (Du. Gliede) was confirmed by pot experiments, also if Gliede was mixed with sand.

    Two groups of organic substances could be separated by hot ethanolic extraction, one coming out of solution after cooling, the other remaining in solution. From the solution a crystalline substance could be obtained, afterwards called 'Gliedine', causing disease symptoms after application to peas and oats. At minute concentrations it stimulated growth of oats. The residue caused grey speck disease in oats.

    Fertilizer trials with differently diseased soils showed that only compost or CuSO4 could restore the soil (also in the 2nd year).

    As 'Gliedine' slowly evaporated at 100 'C diseased soils were heated 3 h per day for 3 days, resulting in restoration of slightly diseased soils, almost cure of moderately diseased soils, and delay of disease symptoms on very diseased soils.

    The curing effect Of CUS04 must very probably be ascribed to the formation of an insoluble compound with 'Gliedine'

    Een onderzoek naar fijnheid en verdeeling van het phosphorzuur en zijn opneembaarheid in de mergelgronden van Java
    White, J.T. - \ 1926
    Wageningen University. Promotor(en): J.H. Aberson. - Wageningen : Veenman - 143
    bodem - fosforzuur - kalkrijke gronden - zware kleigronden - mergelgronden - java - indonesië - nederlands indië - soil - phosphoric acid - calcareous soils - clay soils - marl soils - java - indonesia - netherlands east indies
    In 1907 it had been established by Marr and Geerts, that margalitic soils with a content of less than 0.03 % P205 soluble in cold 25 % HC1 or 0.01 % soluble in 2 % citric acid were P deficient. An attempt was therefore made to explain why some soils with P well above this limit responded to superphosphate.

    Assuming that the availability of Ca3(PO4)2 depended on its specific surface area, fractions by size were isolated from the soils by Mohr's method of mechanical analysis, and P was estimated in the fractions. P content of the sand fraction was high and decreased with decreasing particle size to a value below the established limits. This contrasted with the rule for soils in temperate climates. Neubauer tests showed that P in the clay fractions was 100 % available, but that of the silt and sand fractions only for 30 %. The distribution of P over the size fractions was especially unfavourable for the margalites rich in P and explained their favourable reaction to P fertilizer.

    Beknopt overzicht over de colloïden van den bouwgrond
    Aberson, J.H. - \ 1925
    In: Demeter-Eugeia-almanak - p. 135 - 148.
    De reactie van den grond en de behoefte aan kalk
    Aberson, J.H. ; Eversmann, F. ; Dijk, J.W. van - \ 1925
    Landbouwkundig Tijdschrift 37 (1925). - ISSN 0927-6955 - p. 361 - 377.
    Omzettingen van koolhydraten in het blad van Nicotiana tabacum L.
    Tollenaar, D. - \ 1925
    Wageningen University. Promotor(en): J.H. Aberson. - Wageningen : Veenman - 142
    nicotiana - tabak - solanaceae - koolhydraatmetabolisme - metabolisme - plantenvoeding - assimilatie - chemische analyse - blootstelling - milieuafbraak - kinetica - ecotoxicologie - cum laude - nicotiana - tobacco - solanaceae - carbohydrate metabolism - metabolism - plant nutrition - assimilation - chemical analysis - exposure - environmental degradation - kinetics - ecotoxicology
    Nicotiana tabacum L. was chosen as an experimental plant for several practical reasons. The plants were grown in large pots in a glasshouse at 22 °C and great humidity in February-March and September-October until 4 normal leaves were present. Each day at 16.00 h the plants were brought into darkness at 28 °C which made them completely free of starch at 10.00 h next morning. At this moment assimilation and other experiments were started.
    These experiments studied: formation of starch by assimilation at 28 °C; formation of starch from sugar solutions at 28 °C or at 1.5 °C; the significance of carbohydrates for transport of substances in the leaf; the conversion of starch at different temperatures; the accelerated starch breakdown with drying and other related phenomena; the small starch conversion in tobacco with leaf mosaic and in other virus-diseased plants; the changes occurring with drying and fermentation, particularly in carbohydrate content.

    To kill the enzymes before drying, the plucked leaves after weighing were first treated with boiling ethanol. The further treatment of the leaf extract and the methods of estimating sugars and starch were extensively described. The results of the analyses were thoroughly considered.
    De kwantitatieve botanische analyse van veevoedermiddelen
    Ezendam, J.A. - \ 1921
    Wageningen University. Promotor(en): J.H. Aberson. - Den Haag : Van Langenhuysen - 92
    voer - samenstelling - landbouw - feeds - composition - agriculture
    It was of importance in the evaluation of feedingstufrs to know its quantitative composition. A qualitative botanical indicated purity but a quantitative test was needed for the degree of purity. Natural feedstuffs always contained a certain amount of foreign material, which could be considered either as natural or chance contamination. The manufacturer had to ensure that commercial feedstuffs had a high degree of purity. Whenever there was consideration in the trade of standards for purity, it was necessary to be able to check these standards.

    Ezendam worked out a method of measuring impurities both quantitatively and qualitatively. It was tested on some feedstuffs and thus led the way for microscopic study of feedingstuffs.

    De beteekenis der landbouwscheikunde voor het onderwijs en onderzoek aan de Landbouwhoogeschool : rede uitgesproken op den 23sten Maart 1919 ter gelegenheid van de herdenking van den eersten verjaardag der Landbouwhoogeschool
    Aberson, J.H. - \ 1918
    Wageningen : Veenman - 29
    landbouw - chemie - agriculture - chemistry
    Het studiejaar 1918-1919
    Aberson, J.H. - \ 1918
    Wageningen : Veenman - 9
    landbouw - onderwijs - geschiedenis - agriculture - education - history
    Bijdrage tot de kennis der zoogenaamde physiologisch zure en alkalische zouten en hun beteekenis voor de verklaring der "bodemziekten"
    Aberson, J.H. - \ 1916
    Wageningen : Veenman (Mededeelingen van de Rijks Hoogere Land-, Tuin- en Boschbouwschool en van de daaraan verbonden instituten dl. 11, [verh. 1]) - 108
    bodemchemie - bodemvruchtbaarheid - soil chemistry - soil fertility
    Bijdrage tot de kennis van het botervet
    Nieuwland, N. ; Aberson, J.H. - \ 1915
    Wageningen : Veenman (Mededeelingen van de Rijks Hoogere Land-, Tuin- en Boschbouwschool en van de daaraan verbonden instituten dl. 8, [verh. 4])
    De adsorptieverschijnselen van den bouwgrond
    Aberson, J.H. - \ 1912
    Wageningen : Veenman (Mededeelingen van de Rijks Hoogere Land-, Tuin- en Boschbouwschool en van de daaraan verbonden instituten dl. 5, [verh. 1]) - 43
    De zure afscheiding der wortels II
    Aberson, J.H. - \ 1911
    Wageningen : Veenman (Mededeelingen van de Rijks Hoogere Land-, Tuin- en Boschbouwschool en van de daaraan verbonden instituten dl. 4, [verh. 3])
    De zure afscheiding der wortels
    Aberson, J.H. - \ 1908
    Wageningen : Veenman (Mededeelingen van de Rijks Hoogere Land-, Tuin- en Boschbouwschool en van de daaraan verbonden instituten dl. 1, [verh. 1])
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