cannabis fertilizer chart

Bio Nova Feed Chart

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Bio Nova is a Dutch company that has been making fertilizers for almost 30 years now for all types of plants. Coincidentally, the Bio Nova feed chart is perfect for cannabis plants. They have spent many years studying and investigating ways to make high-performing products that improve your cannabis’ flowers quality.

This company uses external investigation centers and labs, guaranteeing the opinions and knowledge of third parties – they work with scientists in the same field of study, allowing them to learn more information and improve their products. They also listen to any feedback given from their customers, which also allows them to improve their products regarding their customers’ needs.

Bio Nova is known for their large base fertilizer range, allowing you to grow in any medium, whether it’s soil, coco coir or hydroponics. They also have various different feeding charts; basic, dedicated and professional. Today we’re going to talk about their basic and dedicated charts, which contain Bio Nova’s base fertilizers and additives respectively.

Bio Nova Feed Chart Base Nutrients

Bio Nova has made a large amount of base fertilizers for your plants, allowing you to grow your plants using just base nutrients during the entire process. Their “Supermix” fertilizer contains everything that your plants need to perform successfully during the growth and flowering periods.

Soil Supermix

This base fertilizer is capable of giving your plants all of the necessary micro and macro-nutrients that they need to grow incredibly healthy and high-yielding. It’s used to feed plants grown in soil during the growth and flowering periods.

Autoflower Supermix

This specific base is designed for incredibly fast-growing plants, such as autoflowering plants. It has high doses of nutrients that your plants can absorb super-fast, allowing them to efficiently and effectively grow and produce large yields.

Hydro Supermix

When growing hydroponically, your plants will need a nutrient base that’s rich in nutrients in order to properly feed your cannabis plants. Hydro Supermix’s ingredients are incredibly high quality and easy for your plants to absorb. Even though this base fertilizer has all of the necessary nutrients, we highly recommend using the chart with additives ; aquatic substrates have absolutely no nutrients in them, therefore the only way for your plants to get sustenance is from the water given to them.

Nutri Forte A+B

This nutrient base comes in two parts, A + B, and it’s designed to produce the best possible results. It works perfectly with automatic watering systems, as it dissolves fully, and it’s designed for inert substrates such as rockwool, perlite etc. You’ll be able to give your plants a balanced dose of the nutrients that they need the most.

Coco Forte A+B

This product also comes in two parts, although it’s designed for exclusive use in coco coir substrates. Coco coir does not have many nutrients in it to start with, which is why this product is highly concentrated – never go over the recommended dose.


As well as creating full base fertilizers, Bio Nova has created a wide range of additives for your plants. They also stock various products for increasing and lowering the pH in your nutrient solution, which allows for a more rigorous control over your plants and how much food they can absorb.

PK 13-14

This additive is a fattener for your cannabis flowers, allowing you to grow large, much heftier buds. It can be used alongside each and every nutrient base by Bio Nova; it dissolves perfectly in water and also contains the perfect nutrients for soil and coco coir substrates. Some substrates don’t need any extra PK, although most plants will welcome a little extra towards the end of the flowering period in order to help them increase the size of their flowers.

BN Roots

This nutrient complex is used to increase the size and improve the health of your cannabis plants’ roots. Thanks to an increase in their root system, your plants will be able to absorb larger amounts of nutrients; you’ll be able to notice the difference with your very own eyes. It works really well when used alongside the additives mentioned below.

BN X-Cel

This stimulant is designed to boost the growth and flowering periods in your cannabis plants. It can also be used to give your plants a little boost at the very start of the flowering period, causing them to start flowering much earlier and faster. If you use this product, you have to use PK 13-14 or else the extra-large buds you’ve created won’t fill out properly. BN X-Cel is used to increase bud size, and PK 13-14 fills them out.

BN Zym

If you’re looking for an enzymatic product for your cannabis plants, you’ve found it! BN Zym contains enzymes that are used to get nutrients from your plants’ substrate – it’s capable of decomposing dead roots, turning them into nutrients that your plants can absorb, making more space for new roots in the process.

Missing Link

Missing Link is the equivalent of giving your plants a suit of armor. It’s used to improve their natural defenses and considerably increase the end results obtained. Your plants will grow larger roots, becoming stronger and more robust, dealing with stressful situations such as insect infestations much easier. Your plants will simply be sturdier, repairing themselves in stressful situations, creating stronger connections and links between cells and nutrients.

How to follow the Bio Nova feed chart

The manufacturer has PDF documents available, although we’ve simplified them slightly here. They are the same charts, simply divided into weeks and with doses per liter of water.

Keep in mind that these feeding charts are a simple guide – the results obtained and doses required depends entirely on your plants’ reaction. If you grow outdoors, we recommend increasing the growth weeks in accordance with your plants, and if you’re growing long-flowering plants, like sativa plants, you’ll need to extend the flowering weeks too – make sure to always flush out the roots during the last flowering week.

These next two charts allow you to choose between Supermix fertilizers (soil, hydro, autoflower) and A+B fertilizers (Nutri Forte and Coco Forte A+B).

Bio Nova Feed Chart | Basic

This chart contains all of the essential base nutrients that your plants need. You can successfully grow your plants using this chart from start to finish, although if you want more professional results we recommend following the additive chart. The doses in this chart are per liter of water and are used every second time your water your plants.

Remember to always measure your nutrient solution’s pH and adjust to 5.8 before using. If you use an A + B product, make sure to always add part A to your water first, mix and then add B. The manufacturers recommend making your nutrient mix around an hour before watering and getting it sit. Make sure to adjust the growth and flowering weeks to your plants’ needs and growing method.

Bio Nova Feed Chart | Dedicated

Bio Nova’s additive chart contains all of the necessary base nutrients for cannabis plants, as well as a series of additives that are used to improve plant health, flowering results and the general quality of your plants’ buds and resin. This chart is for growers with a bit of experience growing using feed charts, as you’ll need to pay a bit more attention to the dose and state of your plants. The doses in this chart are per liter of water and are used every second time your water your plants.

Remember to always measure your nutrient solution’s pH and adjust to 5.8 before using. If you use an A + B product, make sure to always add part A to your water first, mix and then add B. The manufacturers recommend making your nutrient mix around an hour before watering and getting it sit. Make sure to adjust the growth and flowering weeks to your plants’ needs and growing method.

Learn how to grow cannabis using the Bio Nova feed chart, a professional and simple chart that can help you get amazing results from your plants.

What Is a Feed Chart and How Can It Improve Your Cannabis Garden?

This article is sponsored by General Hydroponics, the leading innovator in the field of hydroponics for more than 35 years.

A helpful tool used by diligent cannabis cultivators is a feed chart. Feed charts are specific recommendations and guidelines provided by nutrient companies to help farmers achieve the healthiest and best crop possible. How and when a nutrient is introduced will trigger responses from the plant, and feed charts can help you understand what products you need to use and when they should be applied. This knowledge is particularly important in hydroponic gardens where you have complete control over nutrients.

Cannabis can be fed varying amounts of nutrient concentrations depending on the strain, stage of growth, and environment; introducing too many or too few nutrients to a cannabis plant can cause great harm to your garden. This is where feed charts come in handy. They provide specific instructions indicating when and where nutrient products should be applied.

It’s important to note that different plants have unique nutritional needs during each phase of the growing cycle. Feed charts can provide an excellent foundation for novice growers, but as your skills develop, you may find it necessary to adjust feed charts based on your plant’s specific needs. In time, you’ll be able to create customized charts that take into consideration strain attributes, climate, water quality, and other factors. Remember, horticulture is a form of art, and practice makes perfect.

Reading Feed Charts for Cannabis Gardens

Although the concept of a feed chart might sound simple, you’ll first need to learn how to read one. Generally speaking, a feed chart is broken down into a grid. One axis lists nutrients while the other axis provides timeline information. For example, a hydroponic feed chart may be broken down in a week-by-week format, with different nutrients assigned to different weeks.

Click to view a PDF version of this sample feed chart

Most feed charts provide a ratio of nutrients per gallon of solution. Let’s say week one calls for 2.5mL of a nutrient—you would simply add 2.5mL of that nutrient per gallon into your solution. If you’re making 50 gallons of solution, multiply 2.5 by 50 and you’ll find that you need 125mL total in your 50 gallon tank.

Once you have mixed the nutrients into your solution, use a PPM (parts per million) reader to ensure the nutrient solution isn’t stronger than the chart advises. Additionally, feed charts may instruct you to add specific nutrients prior to other nutrients.

How to Adjust a Feed Chart

Feed charts provide loose instructions on how to effectively feed your cannabis, but they can always be adjusted to better suit the specific needs of your garden. To adjust a feed chart, first familiarize yourself with the suggested chart and know how your plants respond after these recommended feedings. Understanding a plant’s response to any given nutrient will help you predict how it will be affected when you increase or decrease that nutrient.

The key to successfully adjusting a feed chart is to record everything using a daily journal. Write down what the plants are being fed and when, as well as how the plants responded to the nutrients. By doing this, you can start identifying trends. For example, you might notice that you aren’t increasing vegetative nutrients fast enough to keep up with the size of your plants, or that bud growth is lacking in specific weeks. Having observed this through your notes, you’ll know to increase your nutrient solution at a slow pace.

When adjusting a feed chart, be aware of nutrient lockout and how it compares to nutrient deficiency. A lockout will occur when there is a buildup of nutrients in the grow medium, which then prohibits your plants from uptaking nutrients. This is the opposite of a nutrient deficiency, but they end up looking the same since, in both cases, the plant is not receiving its nutrients. However, by keeping track of your feedings, you should easily be able to tell if you have been underfeeding or overfeeding your plants.

Common Questions About Feed Charts

Below are some frequently asked questions about feed charts. Knowing the answers will help you successfully keep and maintain a feed chart of your own.

What’s the Difference Between Simple and Expert Charts?

The difference between simple and expert charts is based on the number of nutrients used. Simple charts will supply your garden with everything it needs to thrive, but expert charts will introduce a longer list of nutrients to improve your garden. The additional nutrients may increase the plant’s yield, enhance aroma, and flavor, and/or lend an extra boost to its growth and immune system.

Click to view a PDF version of this sample standard/basic feed chart, as well as an example of an expert feed chart for comparison

What Are Drain-to-Waste and Recirculating Systems?

Drain-to-waste systems use nutrient solutions only once, whereas a recirculating system will recycle the runoff. Both of these systems have upsides and downsides.

The advantages of a drain-to-waste system include:

  • Nutrients are more fresh and consistent
  • The pH stays stable
  • Undesirable pathogens are less likely to spread between plants

On the other hand, a drain-to-waste system wastes nutrients that are left in the runoff.

Recirculating systems are more economical as they maximize nutrients. However, there are some issues associated with recirculated nutrients:

  • The pH and nutrient levels of your solution can change as old nutrients are recirculated into your feeding tank
  • Recirculating your solution may allow unwanted pathogens to be spread between plants

Why Do Numbers on the Bottle Differ From the Chart?

Numbers differ between feed charts and bottles because a feed chart plans for the combination of multiple nutrients, while the bottle accounts only for the use of a single nutrient in isolation. Using only the recommendations on each nutrient bottle, you may find yourself with a solution that is too strong for your plants to handle.

What Does PPM Mean?

PPM (parts per million) is a measurement that is used to identify the density of a nutrient solution. Using a PPM reader allows you to accurately measure the nutrients going into your garden, information that is vitally important when addressing nutrient lockout or deficiency.

Why Are pH Levels Important?

If the pH level is too high or too low, your plants cannot uptake the nutrients they need to thrive. Keeping a pH between 5.5 and 6.5 for hydroponic grows–or 6.0 and 6.8 for soil gardens–is absolutely necessary for your plants to reach their full potential.

Learn how to utilize feed charts when growing cannabis so you can achieve the healthiest and best crop possible.