Fertisol NPK 19:19:19

Frequently asked questions

Practical answers from our technical team on application, compatibility and field use of Fertisol NPK 19:19:19.

What is the best dose of NPK 19:19:19 for foliar application?

For most crops, 4–5 g per litre of water (40–50 g per spray pump). Spray early morning or after 4 PM, avoiding direct sun. For drip fertigation, 3–5 kg per acre per week through the vegetative phase.

Is Fertisol NPK 19:19:19 safe for drip irrigation systems?

Yes. It is 100% water-soluble with less than 0.5% insoluble matter, so it dissolves cleanly without clogging drip emitters. Always flush the system with plain water after every fertigation.

Which crops benefit most from 19:19:19?

It is the universal grade — suitable for almost every crop during the vegetative phase. It performs especially well on tomato, capsicum, banana, grape, pomegranate, polyhouse vegetables, cotton, sugarcane, wheat and paddy.

Can I mix NPK 19:19:19 with pesticides in the same tank?

Generally yes with most foliar insecticides and fungicides, but always do a jar-test first: mix small quantities, wait 30 minutes, and check for precipitation. Never mix with strongly alkaline products like Bordeaux mixture.

How is this different from domestic NPK mixture fertilizers?

Domestic NPK mixtures are formulated for broadcast application to soil — they are partially soluble at best. Fertisol 19:19:19 is engineered to international water-soluble spec, meaning every gram dissolves and reaches the plant via drip or foliar.