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How to Get the Most Benefit Out of Your Fulvic Acid

If you have ever taken a close look at fertile soil, you have probably noticed that it is very dark and deep in color. The reason fertile soil is dark is because it is very rich in humic and fulvic acid. These humates help break down the nutrients in the soil and make them much more available to the plant. As a hydroponics grower, you probably want to enjoy all of the benefits of fertile soil, without having to suffer the many downsides that come associated with traditional gardening, such as increased likelihood of disease and smaller yields. The best way to achieve this is by adding a product that contains fulvic acid directly into your reservoir. But to get the most out of this substance, you should also pay attention to how you adjust other factors in your reservoir and growing room. Here are the best ways you can get the most bang for you buck when using Fulvic acid.

Use in Conjunction with Humic Acid – Fulvic acid and humic acid are usually sold separately, but they serve similar functions in the soil. They only differ in their solubility at certain pH levels. Used by itself, virtually every grower will see positive effects. However if you want to enjoy the absolute best yields that fulvic acid can provide, you should use both fulvic and humic acid at the same time.

Increase Nutrient Density – One of fulvic acid’s most valuable properties is its ability to convert nutrients from useless materials into ions that can easily be absorbed by the root. Even if you make no changes to your nutrient solution, you will probably notice the benefits from increased uptake. However, it is also possible that the new, stronger roots and more bio-available nutrients mean that your plant can actually benefit from increasing the nutrient density. It is best to increase the concentration very slowly, so you don’t accidentally suffer the effects of overfeeding. You should also pay very close attention to pH levels, as this can fluctuate when changing nutrient density.

Increase Light Intensity – In addition to increasing nutrient uptake, fulvic acid also increases photosynthetic activity, which means your plants will produce a lot more of the carbohydrates it needs to grow quickly and stay healthy. You can take advantage of this benefit by placing your lights closer to the plant to increase the light intensity. You must be careful, however, about heat damage to your plants if you are using a high intensity discharge light. If you want to be able to get your lights as close to your plants as possible without suffering any serious heat damage, you might want to consider switching to LED grow lights. There is even some evidence that suggests that these kinds of lights can help plant growth.

Use With a Seaweed Based Plant Food – Kelp extract is one of the most potent organic fertilizers available to hydroponic growers. It contains antioxidants and hormones that can rapidly accelerate plant growth and create superior flowers and vegetables. The contents of a seaweed fertilizer are perfectly suited to use in conjunction with humic and fulvic acid.


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Since 1999, Advanced Nutrients has been committed to educating the community and bringing the most up-to-date knowledge to the forefront of grows across the globe. Every article you read here has been curated by Advanced Nutrients’ industry experts, so you can continue raising your bud weight… and your reputation.

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Over time, components within the nutrients settle on the bottom of the bottle. When you pour a bottle without shaking it, you can potentially be pouring out an unbalanced solution. Shaking up the nutrient bottle ensures you are pouring the right blend into your reservoir, giving your crops the nutrition they need.

Usually, it’s not a problem. But some products are incompatible with each other and can damage your plants when they’re used together. For example, bloom boosters with high PK numbers or low-grade silica products can destabilize your nutrient mix and cause nutrient lockout.

Nutrient manufacturers design their products to be used with each other. In doing so, they include specific portions of each nutrient in each product, so crops receive the right nutrition through each stage of the grow cycle. When you stick with one manufacturer, you don’t have to worry about inadvertently destabilizing your nutrient mixture. One example of why you need to stick with only one manufacturer’s products is Advanced Nutrients’ pH Perfect line. These products are designed to keep your crops’ root zone within a specific pH range. When you use them alongside products from another manufacturer, we can’t guarantee your root zone will maintain its optimal pH level.

Yes! If you’re growing with Advanced Nutrients products, you can use our easy nutrient calculator to generate the correct nutrient chart for your crops in seconds. Check out Advanced Nutrients’ nutrient calculator here. Another great resource is our library of free custom-growing recipes. Try our expert grower-tested nutrient schedules here.

You can also download our official BudLabs app to generate nutrient schedules and receive real-time notifications for specific tasks, including feeding your crops. Upgrade to BudLabs Pro to maintain profiles on an unlimited number of crops.

If you are a grower, visit this link to find the closest Advanced Nutrients Authorized Retailer. If you are a retailer, visit this link to identify our official distributors.

Our greatest passion is growing great cannabis—and helping other growers do the same. That’s why we offer complimentary cultivation support 24/7 from Monday to Friday and from 9 AM until 7 PM PST on Saturday… With the same level of advice licensed producers would pay consultants tens of thousands of dollars to unlock.
Just call 1-800-640-9605 or email support@advancednutrients.com. For Spanish-speaking growers, email spanishsupport@advancednutrients.com.

Yes! If for any reason you are not absolutely thrilled with the results you achieve when you use our products, just bring the unused portion, along with your original sales receipt, back to the place of purchase within six months, and ask for your money back. Find out more about our Grower Guarantee here.

Advanced Nutrients has spent many thousands of man-hours developing a technology that automatically balances your pH for you — putting it in the “sweet spot” and holding it there for one week.

And the technology is so “smart” that it can account for many of the aforementioned variables in your grow room. Our proprietary pH buffering agents and stabilizing mechanisms became the foundation of a new system aptly called pH Perfect® Technology. Learn all about it here.

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