Vergelijking tussen gangbaar en emissieloos teeltsysteem : waterefficiënte Emissieloze Kas

Stricter legislation forces growers to decrease discharge of water with nitrogen, phosphate and plant protection products. A demonstration was set-up to compare emission free cultivation with a traditional growing method. Goal was to achieve a comparable yield and quality. Essential differences were disinfection of rainwater, ring pipes for drip irrigation, no discharge of first drain in cultivation, a filter without rinsing and weekly analysis of the nutrient solution. It appeared that production and quality were similar as were other climate parameters. Water use was higher in emission free crop, discharge was 4% in traditional crop realizing 152 kg N discharge per ha per year, which was more than the allowed 133 kg. Specific end cultivation strategy is useful to decrease nitrogen and phosphate stored in slabs and stock containers

Vergelijking tussen gangbaar en emissieloos teeltsysteem : waterefficiënte Emissieloze Kas

Stricter legislation forces growers to decrease discharge of water with nitrogen, phosphate and plant protection products. A demonstration was set-up to compare emission free cultivation with a traditional growing method. Goal was to achieve a comparable yield and quality. Essential differences were disinfection of rainwater, ring pipes for drip irrigation, no discharge of first drain in cultivation, a filter without rinsing and weekly analysis of the nutrient solution. It appeared that production and quality were similar as were other climate parameters. Water use was higher in emission free crop, discharge was 4% in traditional crop realizing 152 kg N discharge per ha per year, which was more than the allowed 133 kg. Specific end cultivation strategy is useful to decrease nitrogen and phosphate stored in slabs and stock containers

Greenhouse data experiment drip irrigation 2016

The 'Greenhouse data experiment drip irrigation 2016' file contains data gathered during the experiment as described in Wipfler et al. (2020), Testing of the Greenhouse Emission Model for application of plant protection products via drip irrigation. WENR report 3004. Climate parameters were collected from the Lets Grow database, these parameters include water supply, drain water flow, external rainwater intake, radiation outside (W/m2), realized temperature and relative humidity in greenhouse compartment

Vergelijking tussen emissieloze teelt op steenwol en kokos : Waterefficiënte Emissieloze Kas

The Dutch greenhouse horticultural sector has committed itself to reach a (practically) zero emission fornutrients and plant protection products at latest in 2027. A zero emission production strategy is demonstratedfor the production of sweet pepper (Maranello) on either Rockwool and coco peat. Readily available technologiesand strategies, like ozonation for disinfection of recirculation water and Uptake Analysis for control of nutrients, were combined to reach this goal, together with a newly developed strategy to minimise discharge of water, nutrients and plant protection products at the end-of-season crop change. Productivity on Rockwool substrate (28.1 kg/m2) was slightly higher than on coco peat (26.5 kg/m2), due to less generative steering on the coco peat substrate from the start of the cropping season. Quality of the fruits was good on both substrates. Technical failure of equipment caused overflow of drain tanks (3.8% on Rockwool, 0.7% on coco peat), but this did not significantly reduce the amount of sodium in the water (main reason for discharge). No other water quality parameters were observed that could have negatively influenced productivity

Greenhouse data experiment drip irrigation 2016

The 'Greenhouse data experiment drip irrigation 2016' file contains data gathered during the experiment as described in Wipfler et al. (2020), Testing of the Greenhouse Emission Model for application of plant protection products via drip irrigation. WENR report 3004. Climate parameters were collected from the Lets Grow database, these parameters include water supply, drain water flow, external rainwater intake, radiation outside (W/m2), realized temperature and relative humidity in greenhouse compartment