To make growers to be in control of the emission, a decision support system is developed for irrigation in soil grown crops. In 2014 the implementation was continued and several greenhouse crops were monitored. As was found earlier, the organic greenhouse growers are able to control irrigation in a way that emission is reduced to a minimum. The results obtained at (conventional) flower growers show sometimes high emission of nitrogen. This is due at one hand to high irrigation surpluses but also to high fertilisation of nitrogen. Better tuning of the water- and nitrogen supply to the crop demand is necessary. For these steps growers need better soil-moisture sensors. A start was made to develop the ideal, robust and wireless sensor, however due to technical problems this was not finished in 2014.
|Publisher||Wageningen UR Glastuinbouw|
- greenhouse horticulture
- water management
- emission reduction