NPK 20-20-20 + TE Water Soluble

A balanced 20-20-20 is the fertigation equivalent of a general-purpose tool. It supplies nitrogen, phosphorus and potassium in equal proportions along with a chelated trace element package, which makes it a straightforward choice during vegetative growth and for operations that would rather run one product well than five products approximately.

The characteristic that matters commercially is solubility. A soluble NPK that leaves insoluble residue will eventually cost you a filter clean, an emitter replacement or an uneven application, and those costs exceed whatever was saved on the purchase price.

Where it fits in a programme

• Early vegetative growth in protected vegetable crops
• Nursery, ornamental and turf production
• Foliar feeding at reduced concentration
• Situations where dosing equipment or labour is limited

Where to go next

As fruiting begins, consider NPK 11-8-34 + TE to shift the ratio towards potassium. If you are unsure how to read the numbers on a fertilizer bag in the first place, our guide to NPK ratios explains what they actually represent — and why P₂O₅ and K₂O are not the same as elemental P and K.

Keep calcium nitrate running alongside it through fruit development, and note that concentrated calcium must never share a stock tank with concentrated phosphate. The fertigation guide covers building the full solution.