Fertiliser pack for coco fibre and pH control, 3 x 1 L

The end of the crop follows a precise sequence. First you water for 48 hours with water free of fertiliser, with or without flushing solution added, then you switch to FinalPart alone, at 5 ml per litre for 12 to 13 days. Deprived of nitrogen, the plant draws on that held in its older leaves, which gradually yellow while the flowers and fruit finish ripening. A second 48-hour flush completes the cycle, and you harvest 2 days after the last feed.

Take four pots of tomatoes in coco fibre, watered by drip irrigation from a reservoir that supplies 30 litres of solution per week. Over 4 weeks of growth, you use 300 ml of growth fertiliser and 120 ml of bloom fertiliser. The 2 weeks of pre-flowering require 180 ml and 120 ml, then 6 weeks of flowering take 270 ml and 540 ml. The cycle therefore uses roughly 750 ml of growth and 780 ml of bloom, and the 12 to 13 days of ripening take 300 ml of FinalPart from your 1 litre bottle.

The parcel contains the three 1-litre bottles, the pH- powder and the 30 ml reagent bottle with its chart, for a weight of approximately 4.2 kg. The fertilisers keep for 5 years after opening, stored upright, with the cap screwed on tightly and away from sunlight, and you should shake them before each use. The pH- should be kept dry and well sealed, and the reagent away from light. If your growing space expands, each fertiliser can be bought separately, such as the coco flowering fertiliser in 1 litre or in a 5-litre container, and the coco fibre in a 50-litre bag fills your pots for the following season.