Responses of soil biota to non-inversion tillage and organic amendments : An analysis on European multiyear field experiments
Hose, Tommy D'; Molendijk, Leendert ; Vooren, Laura Van; Berg, Wim van den; Hoek, Hans ; Runia, Willemien ; Evert, Frits van; Berge, Hein ten; Spiegel, Heide ; Sandèn, Taru ; Grignani, Carlo ; Ruysschaert, Greet - \ 2018
Pedobiologia 66 (2018). - ISSN 0031-4056 - p. 18 - 28.
Earthworms - Microbial biomass - Multiyear field experiments - Nematodes - Non-inversion tillage - Organic amendments
Over the last two decades, there has been growing interest on the effects of agricultural practices on soil biology in Europe. As soil biota are known to fluctuate throughout the season and as agro-environmental conditions may influence the effect of agricultural practices on soil organisms, conclusions cannot be drawn from a single study. Therefore, integrating the results of many studies in order to identify general trends is required. The main objective of this study was to investigate how soil biota are affected by repeated applications of organic amendments (i.e. compost, farmyard manure and slurry) or reduced tillage (i.e. non-inversion tillage and no till) under European conditions, as measured in multiyear field experiments. Moreover, we investigated to what extent the effects on soil biota are controlled by soil texture, sampling depth, climate and duration of agricultural practice. Experimental data on earthworm and nematode abundance, microbial biomass carbon and bacterial and fungal communities from more than 60 European multiyear field experiments, comprising different climatic zones and soil texture classes, were extracted from literature. From our survey, we can conclude that adopting no tillage or non-inversion tillage practices and increasing organic matter inputs by organic fertilization were accompanied by larger earthworm numbers (an increase between 56 and 125% and between 63 and 151% for tillage and organic amendments, respectively) and biomass (an increase between 108 and 416% and between 66 and 196% for tillage and organic amendments, respectively), a higher microbial biomass carbon content (an increase between 10 and 30% and between 25 and 31% for tillage and organic amendments, respectively), a marked increase in bacterivorous nematodes (an increase between 19 and 282% for organic amendment) and bacterial phospholipid-derived fatty acids (PLFA; an increase between 31 and 38% for organic amendment). Results were rarely influenced by soil texture, climate and duration of practice.
Warmwaterbehandeling (wwb) lelie effectief, maar niet altijd zonder schade
Slootweg, G. - \ 2013
BloembollenVisie 2013 (2013)285. - ISSN 1571-5558 - p. 18 - 19.
lelies - bloembollen - warmtebehandeling - rassen (planten) - cultivars - plantenziektebestrijding - proeven - lilies - ornamental bulbs - heat treatment - varieties - cultivars - plant disease control - trials
Een warmwaterbehandeling kan bij lelies ingezet worden om een flink aantal ziekten en plagen te bestrijden. In 2011 werd al vastgestled dat Oriëntals geen schade ondervinden van kookbehandeling, mits er ook voor-en nabehandeld wordt. PPO ging na of dit ook geldt voor lelies uit de andere groepen.
|Why are current world food prices so high?
Banse, M.A.H. ; Nowicki, P.L. ; Meijl, H. van - \ 2008
In: Sugar cane ethanol contributions to climate change mitigation and the environment / Zuurbier, P., Vooren, J. van de, Wageningen : Wageningen Academic Publishers - ISBN 9789086860906 - p. 227 - 247.
|Introduction to sugarcane ethanol contributions to climate change migration and the environment
Zuurbier, P.J.P. ; Vooren, J.G. van de - \ 2008
In: Sugarcane Ethanol - Contributions to climate change migration and the environment / Zuurbier, Peter, van de Vooren, Jos, Wageningen : Wageningen Academic Publishers - ISBN 9789086860906 - p. 19 - 27.
Sugarcane ethanol: contributions to climate change mitigation and the environment
Zuurbier, P.J.P. ; Vooren, J.G. van de - \ 2008
Wageningen : Wageningen Academic Publishers - ISBN 9789086860906 - 255
milieubeleid - klimaatverandering - suiker - suikerriet - milieu - ethanol - landgebruik - landbouwproductie - duurzaamheid (sustainability) - transport - economische impact - milieueconomie - bioethanol - biobased economy - biobrandstoffen - environmental policy - climatic change - sugar - sugarcane - environment - ethanol - land use - agricultural production - sustainability - transport - economic impact - environmental economics - bioethanol - biobased economy - biofuels
Climate change is a challenge facing human life. It will change mobility and asks for new energy solutions. Bioenergy has gained increased attention as an alternative to fossil fuels. Energy based on renewable sources may offer part of the solution. Bio ethanol based on sugar cane offers advantages to people, the environment and the economy. Not surprisingly, governments currently enact powerful incentives for the development and exploitation of bio ethanol. However, every inch we come closer to this achievement, evokes more skepticism. Many questions are raised relating to whether sugar cane is really a sustainable solution. Still much is unknown about the net release of carbon dioxide and what the impacts of sugar cane expansion are on green house gas emissions. This book looks at the scientific base of the debate on sugar cane bioethanol. Authors from Europe, Brazil and the USA capture many aspects of what is known and address assumptions while not denying that still much is unknown. It covers impacts on climate change, land use, sustainability and market demands. This publication discusses public policy impacts, technology developments, the fuel-food dilemma and the millennium development goals.
Lectotypification and description of Clematis viticella L. (Ranunculaceae)
Brandenburg, W.A. ; Vooren, J.G. van de; Jarvis, C.E. - \ 2001
Botanical Journal of the Linnean Society 135 (2001)1. - ISSN 0024-4074 - p. 13 - 23.
The typification of Clematis viticella L. is discussed, and a lectotype designated from the Clifford Herbarium (BM). A standard specimen for C. viticella‘Purpurea Plena Elegans’ has also been selected. Data from hybridization experiments and studies of natural distribution suggest that Clematis campaniflora Brotero is better treated as a subspecies, i.e. as C. viticella subsp. campaniflora (Brotero) Font Quer ex O. Bolòs & Vigo, than as either a species or variety.
Introduction de la bionomie dans la gestion des forets tropicales denses humides
Vooren, A.P. - \ 1999
Agricultural University. Promotor(en): R.A.A. Oldeman; J.L. Guillaumet. - S.l. : S.n. - ISBN 9789058081148 - 220
regenbossen - bosbedrijfsvoering - bosecologie - tropen - ivoorkust - rain forests - forest management - forest ecology - tropics - cote d'ivoire
- INTRODUCTION OF BIONOMICS IN TROPICAL RAIN FOREST MANAGEMENT -
Conservation of tropical rain forests as renewable resources is governed by the bionomics of the forest ecosystem. Bionomics are here used as the set of conditions that govern the development and existence of an organism, species or biological system in a changing environment. These "life rules" should be considered to represent thresholds to the kinds of use that can be made of natural biological systems without endangering the further existence of its composite species.
Studies of the thresholds in sustainable use of tropical rain forest have been conducted in the Ivory Coast. An undisturbed relict of the West-African rain forest belt, preserved in Taï National Park, provides possibilities to study natural processes of forest dynamics and diversity. The main focus was on occurring variations in forest composition, matrix and architecture along slopes in the undulating landscape. Further studies were made of forest dynamics through the occurring patterns in tree mortality and the conspicuous ageing and die-back features of canopy trees. Data on forest composition and dynamics were collected in two forest plots, one of 7 hectares established in 1977, covering a gentle slope in the middle of a watershed of a first order tributary of the Cavally River, and another of 10 hectares, established in 1981, on a steeper slope near the border of the same basin.
A more detailed study is reported on the ageing and die-back processes that occur in two characteristic canopy tree species. Crown development sequences were therefore established for the species Piptadeniastrum africanum and Pycnanthus angolensis. The die-back patterns in individual tree crowns are discussed in relation to possible changes in their physiological state. Large-scale aerial photographs of these two tree species were made and showed the possibilities for reconnaissance of the described ageing features in aerial surveys. In the end conclusion is stated what the possibilities are for the introduction of a bionomical approach in conservation oriented management of tropical rain forests as restrictively used, low yielding timber resources. Therefore, the principal rules that have appeared in the reported studies on forest composition, architecture and dynamics are summarised and the possibilities are discussed of the reconnaissance of senescent trees in aerial surveys and by field observations.
Measuring cell wall dimensions using the distance transform
Heijden, G.W.A.M. van der; Vooren, J.G. van de; Wiel, C.C.M. van de - \ 1995
Annals of Botany 75 (1995)5. - ISSN 0305-7364 - p. 545 - 552.
|Technique accurately measures anything
Vooren, J.G. van de - \ 1995
Prophyta 3 (1995)9. - ISSN 0921-5506 - p. 7 - 7.
Identification of mushroom cultivars using image analysis
Vooren, J.G. van; Polder, G. ; Heijden, G.W.A.M. van der - \ 1992
Transactions of the ASAE 35 (1992)1. - ISSN 0001-2351 - p. 347 - 350.
The application of image analysis for variety testing of mushrooms [Agaricus bisporus (Lange) Imbach] to grant plant breeders' rights was investigated. Images of 230 mushrooms were recorded under controlled lighting conditions. Image analysis techniques were used to increase the number of morphological characters that can be measured. The measurements of length, width, and a range of more or less complex shape descriptors, determined by means of image analysis, were statistically analyzed. Image analysis exhibited a significant improvement over previous methods which used only manual assessments.
|Harvest criteria for tropical forest trees.
Vooren, A.P. - \ 1992
In: Conservation of West and Central African rainforests / Cleaver, K., - p. 134 - 140.
|Le rôle des éléments nutritifs dans l'intensification des cultures vivrières dans la région de Taï.
Reuler, H. van; Janssen, B.H. - \ 1992
In: Compte rendu Séminaire L'aménagement intégré des forêts denses humides et des zones agricoles périphériques, A.P. Vooren et al. (eds.). Abidjan, Côte d'Ivoire 1991. La Fondation Tropenbos, Wageningen - p. 72 - 81.
|Cote d'Ivoire and Tropenbos.
Vooren, A.P. ; Parren, M.P.E. - \ 1992
Unknown Publisher - 15 p.
|Dynamique et productivité de l'écostystèmes forestier dans le Sud-Ouest de la Côte d'Ivoire.
Vooren, A.P. - \ 1992
In: Compte Rendu Séminaire L'aménagement intégré des forêts denses humides et des zones agricoles périphériques. Tropenbos Series 1 - p. 88 - 95.
|Compte Rendu Séminaire sur l'aménagement intégré des forêts denses humides et des zones agricoles périphériques.
Vooren, A.P. ; Schork, W. ; Blokhuis, W.A. ; Spijkerman, A.J.C. - \ 1992
Wageningen : La Fondation Tropenbos (Tropenbos Series 1) - ISBN 9789051130126 - 307
bosbouw - oerbossen - tropische regenbossen - vegetatie - agroforestry - agrosilviculturele systemen - landgebruik - tropen - bosbedrijfsvoering - planning - weiden - bossen - landbouwgrond - relaties - ontbossing - bebossing - ivoorkust - oude bossen - forestry - virgin forests - tropical rain forests - vegetation - agroforestry - agrosilvicultural systems - land use - tropics - forest management - planning - pastures - forests - agricultural land - relationships - deforestation - afforestation - cote d'ivoire - old-growth forests
|Appropriate buffer zone management strategies for Taï National Park.
Vooren, A.P. - \ 1992
In: Atelier sur l'aménagement et la conservation de l'écosystème forestier, Cayenne, Guyane Française - p. 26 - 39.
|Typologie et productivité des écosystèmes forestiers du Sud-Ouest de la Côte d'Ivoire.
Rompaey, R.S.A.R. van - \ 1992
In: Compte Rendu Séminaire L'aménagement intégré des forêts denses humides et des zones agricoles périphériques, A.P. Vooren et al. (eds.). Tropenbos Series 1 - p. 96 - 102.
Oldeman, R.A.A. - \ 1992
In: Compte Rendu Séminaire L'aménagement intégré des forêts denses humides et des zones agricoles périphériques, A.P. Vooren et al. (eds.). Tropenbos Series 1 - p. 295 - 297.
|Evaluation succincte des recherches effectuées à Taï par l'Université Agronomique de Wageningen.
Oldeman, R.A.A. - \ 1992
In: Compte Rendu Séminaire L'aménagement intégré des forêts denses humides et des zones agricoles périphériques, A.P. Vooren et al. (eds.). Tropenbos Series 1 - p. 150 - 156.
|Les potentialités des produits forestiers non-ligneux.
Bonnéhin, L. - \ 1992
In: Compte Rendu Séminaire L'aménagement integré des forêts denses humides et des zones agricoles périphériques, A.P. Vooren et al. (eds.). Tropenbos Series 1 - p. 133 - 138.