Nature has its own special ways of signalling the changes of the seasons. Although the day lengths have been increasing for more than a couple of months, it’s only now that it begins to feel as if we have ‘turned the corner’ and can look forward to the longer days ahead. With extra sunlight and the gradual increase of temperature, feeding requirements for crops change.
Many glasshouse growers use high K ‘holding’ soluble feeds such as HortiMix Standard 12-6-36+2.5MgO+TE on crops over winter to provide the right balance of nutrition for sturdy, resilient growth. This has a relatively low nitrogen ratio to prevent weak and disease prone growth during low light conditions. As we approach the spring equinox the light levels are sufficient to support more growth, so it’s time to move over to feeds with a balanced nitrogen and potassium ratio; such as HortiMix Standard 22-7-22 +1.6MgO+TE or HortiMix Standard 19-19-19 +1.6MgO+TE. We also offer acidifying versions of these in the HortiMix Extra and HortipHix ranges for use in hard water – consult your Hortifeeds Sales Manager if you are unsure which you need.