The use of PGRs in decorative cultures is probable to be more restricted in the dear futurity . As an illustration , from March 2020 onwards , propiconazole will be banned in a lot of countries . BOL take on the challenge to quiz what is doable with regards to ontogeny control through growing media and feeding .
Up to 13 % ontogenesis diminution is achievable in helianthus finish through substrate and eating strategy . Image Demokwekerij Westland
Already in 2018 BOL has try out with a exceptional designed growing medium at various growers . A 10 % increment simplification seemed to be feasible in the first part of the culture . However , the ontogenesis reduction did not always continue to the same extent towards the death of the polish . maybe the feeding regimen that the trial growers had in place resulted in extension in the 2d part of the culture .
As a test with unlike feeding strategies is hard to execute in a commercial-grade baby’s room , BOL , therefore , decided to test unlike alimentation strategy at a research station . At Demokwekerij Westland 2 different growing mediums and 3 dissimilar feeding regimes have been tested on a Helianthus craw . In the test no PGRs have been applied . This to have a exonerated view on the effect that the farm medium and the various eating regime have on the increment .
The result show that a special designed turn metier has an upshot on the length of the crop . When used in combination with a especial feeding authorities a increase reducing of 13 % was possible without use of any PGRs . There was no significant difference in flower size or branching between the various treatments .
Eric Forschelen , adviser at BOL , is convince that with further fine - tuning of the substratum even more increase decrease should be potential : “ We do not have the illusion that through the growing media PGRs are no longer required , but with this trial we have proven a sure increment simplification can safely be accomplished . ”
BOL has also extend a number of trial with growing mass medium that give more compact increment at various pot and bedding plant life growers during this spring season . A lot of data has been call for and the results are very promising . For one it has become clear that sartor - made solutions are involve for dissimilar crops .
BOL is a producer and provider of a wide range of growing media and substrates for professional cultivator . With 60 years ’ experience , they jazz what is required to have a successful crop .
For more data : J.C. Bol & Zn . B.V.Nieuw Oranjekanaal 953151 XL Hoek caravan HollandT : +31 174 51 7300E:[email protected]https://bolpotgrond.nl/
