accurate fertilization that meets the want of the crop requires two things : you have to know the optimum fertilization of the harvest , and you expect a continuous insight in the real fecundation circumstance . In both field important steps are being taken at the moment .
The project Ion - specific cultivation has just been completed . Recently , sensors have been introduce on the market which are able-bodied to evaluate the denseness in the mat or drain per nutritional element ( ion ) . In principle , this can be done continuously . Wageningen University & Research , business unit Glastuinbouw , is gong to test these sensors and will also chart what optimal fertilization yields in terms of output and energy .
Fluctuation in the matFor various nutritionary elements it is sleep with that their content in the mat can vary importantly . This is because the aspiration is not always the same . The researchers : " Night and sidereal day are often earthly concern apart . The atmospheric condition is also important for the breathing in . atomic number 19 is a good object lesson of an ingredient which has a highly fluctuating cognitive content . In itself this is not a trouble : with potassium , a lower aspiration on one day could very well be compensated by a higher uptake the other day . But you ask penetration more often . A drainage psychoanalysis once every two calendar week masks the uninterrupted fluctuation . "
For potassium , this is not vital , but it is for Ca . " An insufficient intake leads to sapless cells . How quickly this chance , continue the question , but it is certain you may not wait for the drainage analysis for two week . You in reality have to adjust fertilisation much faster than that . "
Sensors ready to useEvery reason to keep affair under a tighter ascendency . The sensing element are ready , the next step is test how they can be used in praxis . labor coordinator Ellen Beerling : " We are first going to chart what sub - optimal cultivation cost in terminus of product and energy . We do this by appraise the oxygen content in the mat , which is an denotation for solution activity . In this way we can ascertain the upshot of fluctuations in the mat . Important are the denseness of the single nutrients , but also their symmetry . "
This part will distinguish whether it is useful to unceasingly measure ion - specifically . The key idea is that production and quality can sure as shooting be better . " The 2nd part of this project - a public - private cooperation - is the validation of the Celine detector of The Sensor Factory in exercise and coupling it to the control systems . This happens at various polish company . "
Basis for dressing adviceThe insights to be gained are planted in fat soil . The Basis for Fertilization Advice has just been update on postulation of the Club of 100 , the suppliers contributing to the applied strategical research of WUR Greenhouse Horticulture . The Basis for Fertilization Advice had become a bit out-of-date in the course of time . Fertilization specialist Wim Voogt has used all current research results to update the Basis and conduct extra research . Read more about this enquiry here ( in Dutch ) .
Digital templet modelThe result is a digital template model in two versions : for substrate cultivation and for plenty flora . The grower , who is fill out the templet , received ready - made advice about extra food . The system can also generate various overview , such as concentrations in the mat and the drain , transit of case-by-case chemical element , EC , and such . The updated Basis will be made widely available for the sphere via the appendage of the Club of 100 .
The project Ion - specific mensuration is being financed by KijK , Glastuinbouw Nederland , Topsector T&U , Interpolis , The Sensor Factory , Van Iperen , T. Stolze Installatietechniek , Priva , Royal Pride and Lans Westland .
Source : Kas als Energiebron
