It can be obtained by treating phosphate rock with sulfuric acid, or by combining diphosphorus pentaoxide (P2O5), which is obtained by roasting phosphate rock in ovens, with water. It contains varying degrees of phosphorus (P2O5), over 50%, depending on its manufacture and dilution. It is liquid and heavier than water. It is used in irrigation systems at the beginning of the development period both as a source of phosphorus and to clear blockages in irrigation systems. Phosphoric acid is a strong acid containing 61% phosphorus (P2O5). When applied to the soil through irrigation systems, it lowers the pH on the contact surfaces, albeit slightly. It is marketed in plastic drums of various sizes.
Plants | Application Times and Methods | Foliar Application (gr/100 lt water) | Application from Soil (kg/da) |
---|---|---|---|
Vegetables (tomatoes, peppers, cucumbers, eggplants, zucchinis, beans, peas, onions, etc.) | Whenever necessary, including flowering periods | 150 | 0,5 |
Strawberry, raspberry etc. | Whenever necessary, including flowering periods | 150 | 0,5 |
On fruit trees | Whenever necessary, including flowering periods | 250 | 1 - 2 |
Melon, watermelon etc. | Whenever necessary, including flowering periods | 150 | 0,5 |
Bond | Whenever necessary, including flowering periods | 200 | 1 |
Banana | Whenever necessary, including flowering periods | 200 | 1 - 2 |
Grain fields | Whenever necessary, including flowering periods | 150 | 0,5 |
Industrial plants (cumin, anise, cotton, beet, potato, etc.) | Whenever necessary, including flowering periods | 150 | 0,5 |
Ornamental plants, cut flowers | Whenever necessary, including flowering periods | 150 | 0,5 |
Guaranteed Content | By mass (%w/w) |
---|---|
Total Phosphorus Pentaoxide (P2O5) | 61 |