Promi-Fertil 7-21-7

Question

7-21-7 NPK-fertiliser solution

Declared content (%w/w):

7% Total Nitrogen (N)
4,2% Ammoniacal Nitrogen (N)
2,8% Ureic Nitrogen (N)
21% Water-soluble Phosphorus Pentoxide (P₂O₅)
7% Water-soluble Potassium Oxide (K₂O)
Low in chloride. Low in biuret.

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Description
Instructions for use and application

NPK fertilizer solution with fast absorption, with a high content of phosphorus specially indicated to favor rooting and flowering. Its use is recommended during the stages of greatest metabolic activity, and particularly during vegetative growth and pre-flowering.

Appearance = Blue liquid

pH = 6.8

Density = 1.34 g / cm³

Apply 2-3 times during the growing cycle, at the beginning of the vegetative development and as long as the crop has sufficient leaf development, as well as pre-flowering and fruit set. It is recommended to wait between 14 and 21 days between each application. The doses to be used per application are the following:

	Foliar	Fertigation
Horticultural	150-250 ml/hl	2-3,5 l/ha
Olive, citrus and fruit trees	300-450 ml/hl	4-5,5 l/ha
Nurseries	50-150 ml/hl	0,75-2 l/ha
Ornamental	50-150 ml/hl	0,75-2 l/ha
Extensive	0,5-1,5 l/ha	---

Note: These recommendations are general and indicative, and must be adapted by a qualified technician based on agronomic and edaphoclimatic factors.