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| Registros recuperados: 10 | |
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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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| van Eekeren, Nick; Fehér, L.; Smeding, Frans; Prins, Udo; Jansonius, PieterJans. |
| This article describes three experiments on the control of broad-leaved dock. Experiment 1: Dock seeds were ensiled in grass silages of different dry matter percentages; 23, 34 and 60% respectively. All silages showed a decline of seed vitality in time. Grass clover with dock seeds should be ensiled at a low dry matter percentage or remain in the silage bin for a longer period than 8 weeks. Experiment 2: In a potassium fertilisation trial on grass clover the development of dock was followed. After two years of potassium fertilisation, the number of dock and the root mass was not significant different between the fertilised and the unfertilised plots. It is concluded that potassium fertilisation at a low potassium status does not positively influence the... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Pasture and forage crops; Weed management. |
| Ano: 2006 |
URL: http://orgprints.org/8622/1/1783.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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| Timmermans, B.G.H.; Jansonius, PieterJans. |
| The last two years we measured the amounts of leaf litter and ascospore production per unit of leaf litter area in 7 organic pear orchards throughout the Netherlands. In one of the orchards, adapted managements strategies were implemented two years ago, being grass/clover that is grown as ground cover on the tree-strip, and organic cattle-manure that replaces chicken manure pellets, in order to stimulate the earthworm population and change the palatability of the leaf litter. First results indicate large differences between orchards in percentage of ground covered by dead leaves at the time of major ascospore infections, but also in number of ascospores per cm 2 leaf litter and in resulting potential ascospore dose. We used these data, together with... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Fruit and berries. |
| Ano: 2012 |
URL: http://orgprints.org/26237/1/2757.pdf |
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| Registros recuperados: 10 | |
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