Within the Autumn Bedding market we see a wide range of seed grown bedding plants potted from small plugs into modular packs and trays with individual cells, also pots up to 9cm. Short term cropping typically Pansy and Primula , 8-12 weeks and Longer term overwintered Pansy and Primula crops over 5-6 months.
Even in Britain , summer temperatures can be high, leading to frequent irrigation cycles which will leach nutrients. Overwintered crops being kept frost free will have nutritional requirements but little irrigation requirements. Applying WSF in the autumn and winter with cooler nights leads to excess environmental humidity, ideal conditions for diseases such a Botrytis to develop.
Initially a low nutrient growing media is required to minimise the stress in high temperatures. encourage fast establishment and rooting of the plugs. Plants are potted weekly in batches and while supplementary WSF can be given, the various batches on the ground are at different stages with varying nutritional demands. Once overwintering crops start producing buds, any nutrient deficiencies in the older leaves are difficult to rectify.
Using a controlled release fertilizer such as Osmocote Exact High K is ideal. The High K formulation is perfectly suited for the optimum growth of autumn plants, promoting compact growth and flowering with excellent foliage colour. The unique Dual Coating Technology release ensures the nutrients and particularly potassium are released more strongly later in the crop, in line with plant demand and flowering giving the best quality plants for early spring sales.
The 5-6 month release of Osmocote Exact High K matches crop needs and gives further release during retail and consumer phases.
Use with a specific low nutrient Bedding growing media.
David Mills, Clockhouse Nursery, using Osmocote CRF, Prestop and Exemptor as part of their Levington Advance Solutions.
In protected structures with frost free heating, Osmocote Exact High K will continually release, at a low rate, maintaining leaf colour, particularly when Primulas start bud initiation and giving best quality for early spring sales.