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profile_subnav_projects - ir. JTW (John) Verhoeven
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Vanggewassen
Vanggewassen - WUR Project Vanggewassen The Sixth Action Program (AP) imposes stricter requirements on catch crops after maize on sand and... -
Cultivation above the ground: Leek
The leek sector has to cope with overproduction and low prices in normal production years. The cultivation isn’t very profitable in those years.... -
Cultivation above the ground: cauliflower
Cauliflower and broccoli have a low nitrogen-utilisation index. Only 57% and 51% of the total amount of nitrogen that is available to the crop is... -
Cultivation above the ground: leafy vegetables
As a result of European directives – the Nitrates Directive and the Water Framework Directive- the government and growers of leafy crops are... -
Cultivation above the ground: Strawberry
The cultivation of strawberries on racks is expanding. It is expected that this expansion is heading towards 500 acres within the coming five years.... -
Effects of earlier harvest time of maize and ware potato on sandy soils
The goals of the project are investigating measures that enable an earlier harvest time of maize and ware potato on sandy soils and exploring the... -
Cultivation above the ground: leek
This project deals with development of sustainable soilless tillage system for leek which results in a better leek quality, less harvest risks,... -
Cultivation above the ground: leafy vegetables
As a result of European directives - the Nitrates Directive and Water Framework Directive – the government (in this the Ministry of Agriculture,... -
Cultivation above the ground: Strawberry
Most of the strawberries are still grown in the open field. A small part has been switched to the cultivation on shelving. -
Cultivation above the ground: cauliflower
Cauliflower and broccoli have a low N-utilization index. Only 57% and 51% of the total amount of the available nitrogen is actually assimilated by the...