Results of field trials with dynamic speed limits in the Netherlands: Improving throughput and safety on the A12 freeway

2011 ◽  
Author(s):  
E. Jonkers ◽  
I. R. Wilmink ◽  
H. Stoelhorst ◽  
M. Schreuder ◽  
S. Polderdijk
Keyword(s):  
The Netherlands ◽  
Field Trials ◽  
Speed Limits

scholarly journals RECENT- APPLICATIONS OF ARTIFICIAL SEAWEED IN THE NETHERLANDS

1976 ◽  
Vol 1 (15) ◽  
pp. 165 ◽  
Author(s):  
Henk G.H. Ten Hoopen
Keyword(s):  
The Netherlands ◽  
Coastal Waters ◽  
Field Trials

This paper deals with the effects and the method of laying of some recent emplaced artificial seaweed fields in the Netherlands. The weed is placed on the bottom in coastal waters to promote accretion or at least to prevent erosion along beaches and in gullies. The results of the three field trials, and some of the conditions, that govern the successful application of the seaweed, which will be discussed.

scholarly journals Deoxynivalenol and Nivalenol Production by Fusarium culmorum Isolates Differing in Aggressiveness Toward Winter Rye

1998 ◽  
Vol 88 (9) ◽  
pp. 879-884 ◽  
Author(s):  
G. Gang ◽  
T. Miedaner ◽  
U. Schuhmacher ◽  
M. Schollenberger ◽  
H. H. Geiger
Keyword(s):  
Genetic Variation ◽  
The Netherlands ◽  
Fungal Biomass ◽  
Fusarium Culmorum ◽  
Toxin Production ◽  
Field Trials ◽  
In Vitro Assays ◽  
Winter Rye ◽  
Field Samples

A susceptible synthetic winter rye population was inoculated with 42 isolates of Fusarium culmorum, originating from nine European countries and Australia, at two field locations in Germany. Significant (P = 0.01) genetic variation in aggressiveness of isolates of F. culmorum was observed across both field locations. Field samples were used to determine deoxynivalenol (DON), nivalenol (NIV), and ergosterol (ERG) contents. The 42 isolates also were incubated on rye grain in vitro, and DON and NIV contents were analyzed. Thirty-four isolates produced DON, and seven isolates produced NIV at both field locations and in vitro. Mean DON contents ranged from 0.5 to 64.6 mg/kg in grain from field trials and from 0.3 to 376.3 mg/kg in grain incubated in vitro; mean NIV contents ranged from 17.6 to 30.4 mg/kg in grain from field trials and from 0.8 to 381.0 mg/kg in grain incubated in vitro. No correlation was found between the DON content of field-grown grain and grain incubated in vitro. NIV-producing isolates originated from the Netherlands, Germany, Italy, and Australia. More aggressive isolates produced higher mean DON contents in grain in field trials (r = 0.69; P = 0.01). However, DON production rate per unit of fungal biomass, estimated as the DON/ERG ratio at harvest, was not correlated with aggressiveness. Toxin production seemed to be a common feature in F. culmorum. In vitro assays reliably distinguished DON- and NIV-producing types of F. culmorum; however, these assays could not predict production of DON by these isolates in the field.

scholarly journals Research on varieties in connection with the Netherlands List of Varieties.

1954 ◽  
Vol 2 (3) ◽  
pp. 141-154
Author(s):  
J.K. Groenewolt
Keyword(s):  
The Netherlands ◽  
Field Trials ◽  
Green Manures ◽  
Forage Crops ◽  
Field Crops

With few exceptions, only seed of varieties appearing in the Netherlands List of Varieties is allowed to be marketed. An account is given of the procedure (including field trials) which is followed in determining which varieties of field crops (including forage crops and green manures) and herbage crops are suitable for including in the list.-W.J.B. (Abstract retrieved from CAB Abstracts by CABI’s permission)

scholarly journals Response of silage maize to placement of cattle slurry

1997 ◽  
Vol 45 (2) ◽  
pp. 249-261 ◽  
Author(s):  
J.J. Schroder ◽  
L. Ten Holte ◽  
G. Brouwer
Keyword(s):  
The Netherlands ◽  
Dry Matter ◽  
Sandy Soils ◽  
Field Trials ◽  
Yield Reduction ◽  
Row Spacing ◽  
Cattle Slurry ◽  
Starter Fertilizer ◽  
Silage Maize ◽  
Injection Treatment

In field trials in 1993-94 on sandy soils at 2 sites in the Netherlands, cattle slurry was applied by injection into slots 25 cm apart (standard injection) or 75 cm apart (banded injection). Subsequently, maize cv. Melody or Mandigo was sown at a row spacing of 75 cm parallel to the slots, either at random lateral positions in the standard injection treatment or 10 cm from the injection slots of the banded injection treatment. All treatments, including a control without slurry, were combined with 0 or 20-31 kg/ha of subsurface banded P starter fertilizer. Dry matter yields of silage maize were on average reduced by 8% when standard injection of slurry was not supplemented with P. However, the yield reduction was only 2% when slurry was banded.

Control of Marek's Disease in the Netherlands. II. Field Trials on Vaccination with an Avirulent Strain (CVI 988) of Marek's Disease Virus

1972 ◽  
Vol 16 (1) ◽  
pp. 126 ◽  
Author(s):  
Bart H. Rispens ◽  
Hans van Vloten ◽  
Nel Mastenbroek ◽  
Hendrick J. L. Maas ◽  
Karel A. Schat
Keyword(s):  
The Netherlands ◽  
Disease Virus ◽  
Field Trials ◽  
Marek's Disease Virus ◽  
Marek's Disease ◽  
Avirulent Strain ◽  
Marek’S Disease Virus ◽  
Marek’S Disease
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