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| Registros recuperados: 17 | |
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| Bloksma, Joke; Jansonius, PieterJans; Zanen, Marleen. |
| Overview of projects, project results, funding bodies and partners in 2002 and plans for 2003 Including: SOIL MANAGEMENT * Evaluation of leaf analysis in organic fruit growing as a tool for measuring the uptake of nutrients: Consultants and researchers exchanged practical experiences and the LBI hopes to work with target values. * Impact of sulphur stress: The fruit quality seemed to be better in the reduced sulphur treatment (27 kg /ha instead of 60 kg /ha after flowering). * Fertilisation: In a late summer fertilisation trial with Elstar, trees fertilised late summer/autumn have a higher nitrogen content in the bud the following spring. And fertilising just before winter leads to increased growth of weeds in the next season. * Ground... |
| Tipo: Report |
Palavras-chave: Fruit and berries. |
| Ano: 2003 |
URL: http://orgprints.org/628/1/lf73.pdf |
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| Bloksma, Joke; Jansonius, PieterJans; Zanen, Marleen. |
| Overview of projects, funding bodies and partners in 2001 and plans for 2002 1. ‘Improving production in apples and pears’, a project allied to research into nitrogen supply in organic fruit growing by the PPO (=Institute for Applied Plant Research Fruit). The object is to design and evaluate practical measures to regulate mineral uptake, growth and fruit-cropping, and to anticipate sudden changes in conditions such as frost, drought, extreme precipitation or an off year. 2. ‘Pear scab and fruit tree canker’, a number of small projects in which LBI collaborates with the PPO 3. ‘Classy Apples’ project to improve the internal and external quality of organic apples in the growing phase, in collaboration with growers, trade, extension services and the PPO.... |
| Tipo: Report |
Palavras-chave: Fruit and berries. |
| Ano: 2002 |
URL: http://orgprints.org/579/1/lf67.pdf |
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| Bloksma, Joke; Northolt, Martin; Huber, Machteld. |
| In real life it is hard to distinguish between the two life processes, growth and differentiation. We cannot expect one measured parameter to represent only one aspect of vital quality. But for most parameters we can recognise emphases on one or more aspects of the vital quality concept. We made this prelimary classification both by thinking about the concept and by looking at the experimental results. Also the conventional parameters are interpreted as a result of these processes in a more holistic way than usual. We realise that various parameters all concerning the same aspect of our quality concept can show different levels of the aspect. To belong to the same aspect of the quality concept does not automatically mean that their correlation (see annex... |
| Tipo: Report |
Palavras-chave: Food security; Food quality and human health Specific methods Fruit and berries. |
| Ano: 2001 |
URL: http://orgprints.org/4266/1/4266.pdf |
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| Bloksma, Joke; Jansonius, Pieter Jans. |
| Die positive Korrelation zwischen einem hohen Kalziumgehalt in den Früchten und guter Qualität wird von der Literatur zusammengefasst. Die traditionellen Kalziumspritzungen sind nicht ideal (Synthetische Ursprung, Schalenberostung, Sonnebrand). Wir forschen nach Möglichkeiten für Obstbauern weniger abhängig zu sein von Kalziumchlorid und doch qualitatives Obst zu bekommen. Bei unserer Beurteilung der Kulturmaßnahmen in Bio Obstbau ist der Kalziumgehalt der Früchte eines der Kriterien. Positiv in diesem Rahmen haben sich gezeigt: ein lebendiger Boden, Begrünung, besonders Klee, Begrenzung des Wuchsniveaus, gute Qualität Rosettenblätter, Früchte an der Basis des Triebes und Früchte mit viele Samen. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Fruit and berries. |
| Ano: 2000 |
URL: http://orgprints.org/14913/1/111_bloksma_j..pdf |
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| Adriaansen-Tennekes, Ruth; Bloksma, Joke; Huber, Machteld; Baars, Ton; de Wit, Jan; Baars, Erik. |
| In het verleden is al aangetoond dat de biologische productiemethode maatschappelijke voordelen heeft op terreinen als milieu, biodiversiteit, bodemkwaliteit, dierenwelzijn en pesticidenresidu. Indirect dragen deze kwaliteiten bij aan de gezondheid van de mens. Nu beginnen ook steeds meer onderzoeksresultaten beschikbaar te komen waaruit blijkt dat de biologische productiemethode ook leidt tot voedsel dat meer gezonde stoffen bevat. Biologische producten blijken gemiddeld gelijk of hoger te scoren op gezonde stoffen o.a. vitamine C gehaltes, mineralen, anti-oxidanten en eiwitkwaliteit dan reguliere producten. En biologische producten blijken gelijk of lager te scoren op ongezonde stoffen zoals nitraat, residuen van bestrijdingsmiddelen en... |
| Tipo: Book |
Palavras-chave: Food security; Food quality and human health Dairy cattle. |
| Ano: 2005 |
URL: http://orgprints.org/5437/1/gvv06.pdf |
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| Vijver, Lucy P.L.; Bloksma, Joke; Jansonius, PieterJans; Timmermans, B.G.H.. |
| Das Projekt bietet ein schönes Beispiel, bei dem sich die Betriebsmerkmale so deutlich in den Baum- und Fruchtmerkmalen widerspiegeln. Die Bildschaffende Methoden waren eine gute Hilfe um die Zusammenhang zwischen Baum, Frucht und Kulturmaßnahmen zum Ausdruck zu bringen. Die Arbeit an den Versuchsfragen hat gezeigt, dass Bäume eine gewisse Vitalität brauchen, um eine gute Fruchtqualität zu erzielen. Dieses ist möglich durch die Anwendung allgemein bekannter Schnitt- und Ausdünnungsmaßnahmen , die auf einen vitalen Baum mit beherrschter Wuchskraft abzielen. Die unterschiedlichen Pflanzabstände mit den entsprechenden Unterschieden im Wachstumsverhalten lassen als noch keine eindeutiges Unterschied sehen. Darum ist es sinnvoll, die Beobachtungen der Varianten... |
| Tipo: Book |
Palavras-chave: Fruit and berries Crop health; Quality; Protection. |
| Ano: 2013 |
URL: http://orgprints.org/26763/1/2811.pdf |
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| Jansonius, PieterJans; Zanen, Marleen; Bloksma, Joke. |
| Our objectives in soil management research combine a number of issues: soil fertility, production, fruit quality, growth regulation, prevention of night frost damage, leaf decomposition (scab) and practical feasibility. This will result in different regimes of weed control, fertilisation, foliar feeding and watering for each plot. The evaluation criteria remain particularly difficult to assess. The proposed revised edition of the soil book (LF39) is combined with the final publication of the regulation project which appeared in de winter of 2003 as a hand-book “Biologische Appels en Peren – teeltmaatregelen voor kwaliteitsfruit-” (Organic apples and pears – cultivation measures for quality fruit) (LF75, ed. Joke Bloksma). Time after time our research... |
| Tipo: Report |
Palavras-chave: Fruit and berries. |
| Ano: 2004 |
URL: http://orgprints.org/2950/1/lf78.pdf |
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| Vijver, Lucy P.L.; Bloksma, Joke; Korstanje, Piet. |
| Unter biodynamischen Obstbauern wurde schon viel über Fruchtqualität diskutiert. Neben Qualitätsmerkmalen wie äussere Qualität und Geschmack, wird vermutet, dass auch die innere Qualität für die Kaufentscheidung des Konsumenten eine wichtige Rolle spielt. Zur Beantwortung der Frage, was biologisch-dynamische Qualität bei Äpfeln bedeutet, wurde von der internationalen Fachgruppe für biologisch-dynamischen Obstbau ein Forschungsprojekt gestartet. Dabei werden neben Beobachtungen an den Bäumen auch die Früchte mittels herkömmlicher Analysen beurteilt, als auch über Kristallisationsbilder und die Bildekräfteforschung (Verkostung). Es zeigt dass die Betriebsmerkmale sich deutlich in den Baum- und Fruchtmerkmalen widerspiegeln. Die Bildformende Methoden waren... |
| Tipo: Newspaper or magazine article |
Palavras-chave: Fruit and berries Crop health; Quality; Protection Education; Extension and communication. |
| Ano: 2013 |
URL: http://orgprints.org/27094/1/2824.pdf |
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| Bloksma, Joke; Huber, Machteld; Northolt, Martin; Zanen, Marleen; Jansonius, Pieterjans. |
| We found clear correlations between management measures, tree characteristics and fruit characteristics. This means that growers can regulate apple quality during the growing season. On the basis of the two apple experiments, we can distinguish respective sets of growth and differentiation parameters and evaluate them in the light of conventional fruit cultivation science. Our results have little new value for fruit growing in practice, however. The value of our research lies in the approach developed to draw up a quality concept and the way in which we can apply this concept to crops about which little knowledge exists regarding the relationship between management measures, crop characteristics and product quality characteristics. Our research also offers... |
| Tipo: Report |
Palavras-chave: Composting and manuring; Fruit and berries; Specific methods. |
| Ano: 2004 |
URL: http://orgprints.org/2716/1/gvv04.pdf |
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| Bloksma, Joke; Jansonius, Pieterjans. |
| The sequential leaves of the shoot show a 'biography' of the growing season. The shape of the leaves shows the conditions under which the leaves are formed. This method was developed to help answer the questions of fruit growers and researchers. Fruit cultivation researchers need to record vegetative development during the course of the growing season. The quality of the shoots with the leaves determines the 'production capacity' of the tree and the quality of the fruit and the buds for the next year. |
| Tipo: Book |
Palavras-chave: Fruit and berries. |
| Ano: 2000 |
URL: http://orgprints.org/10682/1/1146.pdf |
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| Registros recuperados: 17 | |
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