General

About the water

Cornell strongly recommends to start with water analysis.

Needed nutrients

Macronutrients

Micronutrients

Chloride and nickel aren’t included in most recipes, as they’re available in sufficient quantities as impurities.

Plant types

For vegetative crops, most nutrient-solution recipes don’t adjust the ratio of nutrients while they grow; whereas, in fruiting crops the ratio may be adjusted to alter the shift between vegetative and reproductive growth.

Plant stages

Recipies

Symptoms of nutrient deficiencies

Improving nutrient uptake

To improve nutrient uptake:

Mixing

Sources