Hyacinth bulb are ordinarily develop in the undecided field . As a result , fertilizers may leach into surface piddle . Moreover , the medulla oblongata are susceptible to soil - borne disease and pestilence ( such as fungi and nematodes ) . enquiry by the Horticulture and Flower Bulbs Business Unit of Wageningen University & Research shows that lightbulb can also be grown well in plastic oceanic abyss .
The Bollencoaster undertaking aims to make electric-light bulb polish more sustainable . One of its constituent is research into the economic consumption of plastic trenches . These are dug into the field at a depth of 10 to 20 centimeter bass and with a width of about 5 centimeters . In the trench is a drip mold hosiery for watering and nutritious diligence . The top of the deep is closed to prevent disease , cuss , and undesirable water system from penetrating . In the trench , the incandescent lamp are planted in a substrate .
When growing hyacinth , this cultivation method has many advantages . It allows targeted watering , for representative , and there is no leaching of water system and fertilizers . Moreover , few plant protection product are needed . Because of the trench , the bulb grow in a long row : this facilitate mechanical pot control . As the incandescent lamp do not produce in the soil , fungi , and nematode can not attack the crop . So crop rotation does not have to take topographic point ( in conventional crop , hyacinths can only grow on the same soil once every six years ) . As a solvent , growers do not have to look for a new line of business every class . And most significantly , the light bulb grow well in the introduce environs .
There are also drawback and concerns . For representative , the grime in the deep must be sufficiently alimental and sportsmanlike . This can be achieved by using new substrate , such as coco peat substrates , during each cultivation round . An choice is to apply sand in the area . However , this must first be steamed and possibly provided with biostimulants . Moreover , the grower has to invest in shaping oceanic abyss and the trickle system , among other things . The top of the trench sometimes appears to open up up , allowing rainwater , for example , to enter the trench . In gain , the soil around the trench should be prevent from becoming impoverished : it might therefore be wise to arise something else between the jacinth , such as locoweed .
The hyacinth research is taking topographic point at Agrifirm - GMN in Voorhout . A study on lilies is taking place on the same theater of operations ( both crop alternate in spring and autumn ) . At WUR ’s research location in Bleiswijk , research is also taking place into the theory of grow other flower bulbs in this system , such as tulip , gladiolus , and zantedeschia .
Bollencoaster is a four - twelvemonth research program of the top sphere Horticulture & Starting Materials of the Ministry of Agriculture , Nature , and Food Quality . The implementation of this Public - Private Partnership lie with a syndicate of seven partners . These are : KAVB , Agrifirm - GMN , Oerlemans Plastics , Rabobank Bollenstreek , Hoogheemraadschap Rijnland , Greenport Duin & Bollenstreek and Wageningen University & Research .
Source : Wageningen University & Research
