" If you do n’t have it , get it , " say Ton Habraken from Svensson and René Beerkens from Hoogendoorn Growth Management . They ’re verbalize about last irradiation meter for greenhouse agriculturist as they kick off the afternoon program of the Masterclass Smart acquire with Data . And place the sensor direct above the craw . " That ’s where measurements should be take , not above the concrete path or the heat pipe , which would distort the version .
The net radiation meter suggest that it ’s beneficial to part end the screens at the end of the mean solar day to reduce radiation and help maintain a stable temperature , allowing the crop to stay . suppose Ton : " Do n’t look at the greenhouse temperature , but at the water preoccupancy . A large part of the plant resistance is also contained in this . "
Ton Habraken , Svensson , and René Beerkens , Hoogendoorn Growth Management , as Clarence Day moderatorsAdrie van Kester , Sven Barendsen ( BK Plant ) , and Willem Kogeler ( Van de Knaap Substrates)Stefan van Os ( Svensson ) , Stijn Jochems ( Plant Empowerment ) , and Vincent van den Burg ( Dalsem)Marco de Groot from Flori Consult Group
Gerbera versus veggie cultivationMarco de Groot from Flori Consult Group asks everyone to raise their hand . The few nurture script reveal that gerbera culture focus on the PAR ( Photosynthetically Active Radiation ) sum , unlike in vegetable cultivation .
The PAR sum provides genus Gerbera growers with valuable mastery for planning their cultivation . This preciseness is crucial because retailers demand specific timber monetary standard at specific times for extended period . If growers miscalculate , even a 10 % overproduction or underproduction can guide to importantly reduced lucre .
The PAR join is a key factor in negociate gerbera cultivation , affecting area such as CO2 layer , casual temperature , water supplying , and shading . These element are full of life because gerberas respond strongly to change in radiation , lightheaded exposure , and temperature of both the greenhouse and the plant .
Gerbera are quantitative curt - day plants , meaning they bloom faster and more uniformly with short day ( 11.5 hour ) and slower on foresightful days . With this info , growers can deal product . By increase the darkness period of time , peculiarly in the fall , higher production can be accomplish .
Since 2005 , Son - T light has been introduced in gerbera cultivation . The effect was better winter output , less Botrytis and a more even production . The light grade gradually increased over the eld , which created a problem with excess heating and humidness . The demand for energy saving came into play . light-emitting diode was the root . " With LED , we experience , among other things , a great influence of remote radiation on greenhouse and harvest temperature and also more influence of net actinotherapy on growth and quality . And LED has not caused more quality problems . “Joeri Everse ( Agro Care ) and Gert Jan Wesselink ( Looye Kwekers)Leo van Uffelen ( Koningsrust Cultivation Advice ) , Hans Belt ( Royal Brinkman ) , Sil Lek , and Tim van der Hoorn ( HDP Pot plants )
The Masterclass was organise by Tomatoworld , Hoogendoorn Growth Management , Svensson , Kas als Energiebron , and Glastuinbouw Nederland . Heleen Lugt from LetsGrow.com and Jan Enthoven from Tomatoworld provided attendees with dick to grow their own refinement strategy using the Strategy Manager . This programme from LetsGrow.com let exploiter to input desired parameters like head teacher thickness , stem compactness , and yield weight . It then calculate and presents various cultivation strategy , enabling growers to optimize their processes severally .
The harvest measure are also infix during cultivation . Heleen recommends get the same somebody do these measuring every week .
The polish analysis will then follow mechanically . Jan Enthoven : " Keep pay close attention yourself . The example is based on weather forecast . Unfortunately , these are not always exact . So you will have to adjust from time to time .
Alfred de Vreeze ( Fotoniq Par * ) , Peter Barendse , and Jan de Winter ( Syngenta Flowers)Ton Habraken ( Svensson ) , René Beerkens ( Hoogendoorn Growth Management ) , Jan Enthoven ( Tomatoworld ) , and Heleen Lugt ( LetsGrow.com)Everyone start home with worthful insights plus , for those directly associate to cultivation , the latest add-on from Plant Empowerment on digital culture .
© FloralDaily.com/Annet Breure
