Solufeed Superior Fertilizers

A new standard in soluble NPK fertilizers ONLY available from Solufeed. Suitable for hard and soft water.

Benefits of Solufeed Superior

• Mostly nitrate nitrogen for immediate availability.
• Zero ureic nitrogen - suitable for all crops and growing media.
• Acidic formulation:
  Will reduce water pH for growers with hard water.
  Will mix with calcium nitrate for growers with soft water.
• Rapidly and completely soluble.
• Fully chelated balanced mix of trace elements.
• Suitable for a wide range of crops from pot plants to soft fruit.
• Made exclusively by Solufeed using the unique Pekacid® raw material.

Background information

Solufeed Superior fertilizers are used in the same way as other soluble fertilizers. The normal method is to make up a 10% stock solution (1 kg of Solufeed Superior dissolved in 10 litres of water) which is further diluted 1:100 giving a final dilution of 1 gram of Solufeed Superior per litre of irrigation water.

For Hard Water areas

Hard water usually contains high levels of calcium and/or magnesium ions together with bicarbonate (HCO₃) ions; the pH is usually high.

The calcium in hard water is beneficial for growing plants but the associated alkalinity means that most plants do not respond we to fertilizer and can be prone to trace element deficiencies. Some commercial growers invest in equipment to treat hard water with concentrated mineral acids that will reduce the bicarbonates and reduce pH to improve growing performance.

Using acidic Solufeed Superior fertilizer will neutralize some of the bicarbonates in the water and will reduce pH thereby improving conditions for plant growth. This is demonstrated by the results of a trial conducted in North Yorkshire, UK. Here the pH and bicarbonate levels in raw water and the same water plus Solufeed Superior Vigil (at normal rate of use) were compared.

For Soft Water areas

Soft water contains very low levels of calcium or magnesium ions. It may be necessary to add calcium (usually as calcium nitrate) to provide plants with the optimum level in the feed. However calcium is normally incompatible with other soluble fertiliser components, and so growers invest in separate tanks and diluters especially for calcium.

Solufeed Superior products can be mixed with calcium nitrate in concentrated solution up to an equal basis. Ie. 1 kg of Solufeed Superior + 1 kg calcium nitrate in 10 litres of water, then further diluted 1:100.

This mix will provide 190 ppm of calcium in the final feed which is more than sufficient for most crops.

There are currently two Solufeed Superior fertilizers - Vigil and Fleury.

Pekacid is a registered trademark of ICL Fertilizers