You’ve never been so close to perfect cucumbers

Against an excess of ammonium …

Many green­house vege­ta­bles in press pots, but espe­cial­ly graf­ted cucum­bers, occa­sio­nal­ly show seve­re chlo­ro­sis of leaf edges, redu­ced root growth and gene­ral growth inhi­bi­ti­on when orga­nic fer­ti­li­sers are app­lied in the initi­al cul­ti­va­ti­on peri­od. The pro­bable main rea­son is an exces­si­ve ammo­ni­um sup­ply to the young plants which occurs par­ti­cu­lar­ly in spring when air tem­pe­ra­tures rise fas­ter than soil temperatures.

This is a well-known pro­blem with orga­nic fer­ti­li­sa­ti­on in orga­nic gro­wing. If mine­ra­li­sa­ti­on is redu­ced, the orga­nic nitro­gen in the sub­stra­te can­not be con­ver­ted quick­ly enough into nitra­te. The ammo­ni­um-nitra­te ratio beco­mes unfa­voura­ble for the young plant, sym­ptoms cau­sed by ammo­ni­um excess are the consequence.

yellowing cucumber

… only a plus of ide­as can help

New Bio Pot­g­rond inno­va­ti­on for cucum­ber young plants in press pots

Klasmann-Deilmann has sol­ved this pro­blem with a new deve­lo­p­ment in the Bio Pot­g­rond ran­ge. The use of our GreenFibre® wood fib­re and our inno­va­ti­ve fer­men­ted wood fib­re TerrAktiv® FT in Bio Pot­g­rond H chan­ges the sub­stra­te struc­tu­re in

the press pot in favour of an impro­ved oxy­gen sup­ply to the root zone. Even under unfa­voura­ble cli­ma­tic con­di­ti­ons the mine­ra­li­sa­ti­on in Bio Pot­g­rond H is secu­red. The young plant has suf­fi­ci­ent nitra­te from the orga­nic fer­ti­li­sers available.

It was alrea­dy good, now it is even better


comparison nutrient content

In com­pa­ri­son: Nut­ri­ent con­tent in sub­stra­te, 3 weeks after start of cul­ti­va­ti­on. The nitra­te con­tent in the new Bio Pot­g­rond H is signi­fi­cant­ly impro­ved (dark green columns).

70% alter­na­ti­ve con­sti­tu­ents – 100% reliability

The new Bio Pot­g­rond H also allows a peat reduc­tion of up to 70 % for blo­cking substrates. By adding a spe­cial sta­bi­li­ser, the press pots remain suf­fi­ci­ent­ly sta­ble up to an edge length of 10 cm what makes them sui­ta­ble for mecha­ni­cal plan­ting. Exten­si­ve prac­ti­cal tri­als have pro­ven the effec­ti­ve­ness of this inno­va­ti­ve new sub­stra­te with signi­fi­cant­ly bet­ter colou­red, vigo­rous young plants.


With liquid fer­ti­li­sa­ti­on also a fixed size with tomatoes, pep­pers and others

Bes­i­des graf­ted cucum­bers, the plant qua­li­ty can be impro­ved in tomatoes, pep­pers, auber­gi­nes and other green­house plants, both as graf­ted or seed grown young plants. To ensu­re a good nitro­gen sup­ply during the gro­wing peri­od, liquid fer­ti­li­sa­ti­on should be app­lied to crops in Bio Pot­g­rond H.




Advan­ta­ges of the new Bio Pot­g­rond H at a glance:


Inde­pen­dent cer­ti­fi­ca­tes and regu­la­ti­ons are the standard

The Bio Pot­g­rond ran­ge of substrates for orga­nic gro­wing from Klasmann-Deilmann com­plies with Regu­la­ti­on (EC) No 834/2007 and its detail­ed rules for imple­men­ta­ti­on (EC) No 889/2008, appen­dix I, appro­ved by Ecocert®. All raw mate­ri­als and orga­nic fer­ti­li­sers are „GMO-free” and regu­lar­ly tes­ted for resi­du­es. Moreo­ver, Klasmann-Deilmann is RHP cer­ti­fied (www​.rhp​.nl).

RHP Horticulture