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.

Pictures in Promi-Fertil 7-21-7

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.

Promisol has been a beneficiary of the European Regional Development Fund whose objective is to improve the use and quality of information and communication technologies and access to them and thanks to the one that has requested registration to TICCámaras for the improvement of competitiveness and Productivity of the company on 08-06-2018. For this, it has had the support of the TICCámaras of the Chamber of Commerce of Lleida.

Fondo Europeo de Desarrollo Regional

Una manera de hacer Europa