Modern agriculture is changing extremely fast, and if we want to achieve high-quality and highly efficient harvests, separately watering and fertilizing is no longer enough. In this context, understanding what fertigation is in agriculture opens the door to a super-intelligent technique. This system allows us to provide our plants with both water and nutrients simultaneously and precisely when they need them. At INTA, we are convinced that this method is not the future—it is the present! That’s why we want to help you discover how this precision can transform your production.
Imagine you can give your plant a personalized “meal” with every sip of water. That is fertigation. It is simply mixing soluble fertilizers with irrigation water, and the best part is that everything goes directly to the plant’s root, right where it is needed most. With this, you avoid wasting product in areas where it won’t be utilized, which translates into significant savings and incredible efficiency.
In essence, fertigation is based on three key points:
Fertigation brings direct benefits to both plant health and your wallet. These advantages of fertigation in agriculture are often the main reason to make the leap to a more efficient system.
Did you know that a large part of the fertilizer is lost during traditional fertilization? It is either washed away by rain (leaching) or evaporates. With fertigation, you give the plant exactly what it needs and right in its absorption zone. This means you utilize almost 100% of what you buy, drastically reducing waste.
One of the greatest powers of this technique is that it allows you to be the “boss” of the soil. You can adjust the pH and Electrical Conductivity (EC) of the water that reaches the root. Why is this important? Because each nutrient is best absorbed at a specific pH level. If you keep it optimized, the plant feeds better and grows stronger.
Your crop’s needs change: the germination phase is not the same as the flowering or harvesting phase. With fertigation, you can vary the nutrient “recipe” every week or even every day, adapting it perfectly to what the plant is demanding. This results in higher yield and better quality of the final product.
By using precision irrigation systems such as drip irrigation, you are already saving water. If you add the fact that fertilizers are applied through the same system, you also eliminate the cost and time of having to apply solid fertilizers separately. Less manual labor, less fertilizer expense, and less water usage: it’s all economic benefits!
To fully understand what fertigation is in agriculture, it helps to know that this precision depends on several components working together. Think of it as a small “factory” that measures, mixes, and distributes nutrients with high accuracy. In practice, there are different types of fertigation systems—from simple injector-based setups to fully automated solutions with dosing pumps and continuous EC/pH control.
These are the essential components that make up the “brain” of a fertigation system:
When we talk about fertigation, not just any fertilizer will do. You need fertilizers that dissolve completely in water, without leaving residue that could ruin your irrigation system. The key is solubility and, of course, choosing the right “diet” for your plants.
Before buying, consider two key points. If the product does not dissolve well, you will have clogs and serious problems. The first is Water Solubility: all fertilizers must be 100% soluble so they do not form precipitates that obstruct drippers and pipes. The second is Purity and Compatibility. Ensure that the fertilizers have the minimum amount of impurities. Also, remember that some products cannot be mixed directly (for example, those containing Calcium and Phosphorus), so you will need to use separate tanks—the famous “stock solutions.”
Every plant needs a balanced diet. These are the main “courses” served through fertigation. First are the Primary Macronutrients (NPK), which are Nitrogen (N), Phosphorus (P), and Potassium (K)—the pillars of nutrition. Each has a vital role, from leaf development to fruit formation. There are also the Secondary Macronutrients, such as Calcium (Ca), Magnesium (Mg), and Sulfur (S). These are very important and are often included in formulations, with special care taken regarding Calcium compatibility. Finally, there are the Micronutrients (such as Iron (Fe), Manganese (Mn), Zinc (Zn), Copper (Cu), etc.), which are needed in very small quantities, but whose deficiency can drastically stunt plant growth.
For this technique to work perfectly, not just any irrigation method will suffice. Once you are clear on what fertigation is in agriculture, it is key that your infrastructure guarantees a highly uniform distribution of water. Why? Because the irrigation network is the vehicle that carries the nutrients, and if there is no uniformity, the plants do not receive the same dose.
The most compatible and efficient systems for applying fertigation are:
Fertigation is no longer a luxury; it is a necessity for being competitive and sustainable. If you seek to go beyond basic efficiency and want absolute control of your crops (water, nutrients, and climate), you need technology designed for that. At INTA, we have been designing and installing ultra-precise fertigation and climate control solutions for over 25 years.
Don’t settle for just watering; start managing your crop’s nutrition down to the millimeter. Contact us today and discover how our systems can increase your yield and reduce your costs.
Fertilizing is adding fertilizer to the soil (manually or mechanically) for the plant to take when it wants or can. Fertigating is using the irrigation water as a “vehicle” to deliver liquid nutrients directly to the root in a programmed manner. Control and precision are the major differences.
No. Only fertilizers that are 100% water-soluble can be used for fertigation. Traditional fertilizers that leave solid residue can damage the injection system and, worse, permanently clog the drippers in your installation.
You should mainly control two values: pH and Electrical Conductivity (EC). pH affects the plant’s ability to absorb nutrients, while EC measures the total concentration of salts (nutrients) in the water.
It depends on your level of automation. To start, you need a functional irrigation system (drip or micro-sprinkler) and an injection system (from a simple Venturi to dosing pumps). However, if you want total control and the maximum efficiency of what fertigation is in agriculture, you will need an automated controller to measure pH and EC.
Definitely not. Although fertigation is fundamental in soilless and greenhouse cultivation, it is also successfully applied in open-field crops (extensive), fruit trees, vineyards, and any crop that uses drip or micro-sprinkler irrigation.
Yes, you can, but it is crucial to analyze it first. The water may have a high salt concentration or an unfavorable pH, which will directly affect your nutrient solution. A prior analysis will tell you if you need any pretreatment.
