Dear Mr. Fudge
Thank you for your enquiry to Solufeed.
Our bread & butter business is supplying commercial horticulture, so whilst we are able to make bespoke blends I am afraid there is a minimum order quantity of 1 tonne (50 x 20 kg bags).
At this time of year we run down our stocks and use up our odds and ends, but in the spring we will be producing a commercial strawberry product we call “Coir low N” (see analysis attached), which is 6:14:30 analysis with 5% MgO. The composition and the trace element loading is designed for strawberries grown in coir. If this product is of interest to you it would be easy to supply you from stock once the season gets going – typically in March. If you would like to get back in touch then, I think we may be able to help.
Note that whilst we routinely include sufficient magnesium in our blends, we do not include calcium nitrate. The normal method of use of soluble powder blends is to make up a 10% concentrated stock solution (e.g. 10 kg in 100 litres of water) which is then further diluted ~1:100, typically with a water powered dosing pump like a Dosatron
. In concentrated solution the soluble phosphorus will react with the soluble calcium to form insoluble calcium phosphate in the stock tank. This results in a muddy sediment, blockages and loss of nutrients. For this reason the calcium and the NPK fertilizers are kept in separate stock tanks, and only come together when they mix in the irrigation pipework at final rates of dilution. This final dilution is a very weak solution (~1 g per litre) and so although the reaction does still take place, it occurs very slowly and in practice does not present a problem.
| Total N|
| NO3 N|
| NH4 N|
| Total Cu|
| Cu EDTA|
| Total Fe|
| Fe DTPA|
| Total Mn|
| Mn EDTA|
| Total Zn|
| Zn EDTA|
Not quite what I was hoping for, but that means im sorted in the spring, guess Ill have to bite the bullet and pay over the odds for masterblend, Will only be the premix base though, Ill use my own sources for cal nit and mag sulph
Bonus is. I dont think he has any idea why im enquiring. either that or he writes a good poker face