Any grower, despite the best of preparations, will undoubtedly encounter nutrient imbalances during their crop cycles. Nature is unpredictable and there are a myriad of factors that can influence how your crops will perform throughout a growing season. This is not exclusive to soil or outdoor growing; Hydroponic growing is not exactly more reliable, rather having its own set of risk factors. When you take control of the environmental factors - light, humidity, nutrients - you had better be sure to have a contingency plan in place for when things go off the rails.
When humic and fulvic acids are used in any form of cultivation the plants will require less water and become more efficient at utilizing available nutrients in the soil or growing medium.
All soil holds a negative ionic charge, while nutrients are generally positively charged. This negative ionic charge allows nutrients to bind more efficiently to plant roots, increasing vegetative growth, yield and overall immunity of the plant.