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Knowledge center Crop care

The Royal Brinkman Knowledge center is divided into seven themes. Under them Crop care you find information from tipd to optimize your nutrution feeding schedule to advice for the use of shading agents and coatings.

Knowledge center Crop care


How to manage your crop with pH and EC?
The pH and the EC influence the absorption of fertilizers throughout crops. Therefore, it is important that you know how to adjust the pH and EC of nutrient solution. Our specialist give you three tips. 
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▲ 3 tips for measuring and adjusting pH
The pH in a crop is important for the right application of fertilizers. A too high or too low pH will result in a reduced absorption of certain nutrients, with possible deficiency symptoms as a result.
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▲ How to calculate the capacity for fertilizers?
In case of new construction and/or expansion of the cultivation area. Therefore it’s good to know if you took sufficient time to calculate the required storage capacity for your cultivation. 
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What are the advantages of blended fertilizers or composed big bags?
Blended fertilizers are becoming increasingly popular within horticulture. Different fertilizers are mixed by the producer based on the customer’s demand. This way a customized mix is made.
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How to prevent single fertilizers from hardening
Before single fertilizers are given to the plant, it’s crucial to dissolve the fertilizers first. Sometimes the dissolving process is more difficult, because the nutrients have become solid and clotted. How can you prevent your fertilizers from hardening?
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▲ Water management in (hot) summer
During the summer, it could happen that the amount of rain water available is insufficient to meet the water needs of your crop. Therefore, it is important to apply good water management in (hot) summer. 
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▲ What are the advantages of organic fertilizers?
The biggest difference with chemical fertilizers is that organic fertilizers improve the soil's health and condition, leading to better fertility. This article will present more elaborate information about the characteristics of organic fertilizers.
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▲ How to prevent nutrients from precipitating in fertilizer tanks
Precipitation of nutrients in fertilizer tanks is caused by incorrect dosing or mixing. In this article an explanation is given on how to prevent precipitation of fertilizer nutrients when mixed.
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▲ How can the level of oxygen in a plant's roots be measured?
Oxygen in a plant's roots is needed by the plant cells in order to be able to breathe. This is mainly determined by the proportion of water and air in the soil or substrate. In this article, an overview of the benefits and how to do this can be found.
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▲ How can fertilizer tanks be prepared?
The preparation of fertilizing tanks is very important in horticulture and should be performed carefully to exclude as many risk as you can. This article provides an overview and guide on how to minimalize the chance for mistakes.
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▲ How can you turn a hydrangea blue?
Hydrangeas are cultivated in several colors. However, for some colors are chemical reaction is needed. The hydrangea's own pigment, Delphinidin glyocide (delphinidin-3glykosid) can change color. How this is done, is explained by our specialist in this article. 
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Liquid fertilizers

▲ How can liquid fertilizers be applied?
Liquid fertilizers are offered as an alternative to fixed fertilizers. Several advantages can be named, such as easy application and easier intake of the elements. In this article different approaches on liquid fertilizers are given by our specialists.
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 How can unintended contamination of liquid fertilizers be prevented?
Contamination of fertilizers is unintended and undesired. In this article, an overview of reactions between elements is given by our specialist.
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 How can liquid fertilizers be stored?

When storing liquid fertilizers several factors have to be taken into account in order to ensure your personal security and to protect your business. In this article, various rules for storage of fertilizers are given by our specialist.
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 How to work safely with liquid fertilizers
Working responsibly and safely is very important when making use of liquid fertilizers. Only one drop of hazardous substance can cause severe consequences. To prevent this, our specialists have put together some tips.
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▲ What do hazard symbols/ CLP icons mean?
Working with liquid fertilizers can be dangerous if knowledge about the products is missing. Because fertilizers can cause severe consequences in terms of health or to the environment, our specialist provide an overview of the definition of each hazard symbol/ CLP icon, which can be found on the packaging.
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▲ How to select the correct dripping tray?
When selecting a dripping tray, several factors have to be taken into acount. Factors such as material, capacity, the GRP grate, the difference in elements, etc. This article explains which things should be taken into account when making your decision. 
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Trace elements

▲ How do chelates work?

Fertilization of iron is always done in chelated form. The reason for this is, iron easily precipitates when in contact with other nutrients. Precipitation can be prevented by dosing iron in chelated form. Several chelates can be used for this.
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 How can trace elements be converted?
Trace elements are offered to a crop in a fertilizer solution. One trace element is offered in a solid form, while the other is offered in liquid from. Some trace elements can be used in both forms, resulting in the need to convert the amount of fertilizers.
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▲ How can deficiency symptoms in plants be recognized?
A plant needs fertilizers, in order to grow, bloom and stay healthy. However, sometimes the appearance of your plant indicates a deficiency. In this article, our specialists have provided an overview of all deficiency symptoms possible.
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Pre-treatment agents

What is the advantage of carrying out a company audit? 
A company audit can be performed by Royal Brinkman in collaboration with Chrysal. This can be done in order to optimize certain processes within your company, such as hygiene of harvesting tanks and the presence of micro-organisms in the water used by the company. In this article, you can read more about what is measured when a company audit is carried out.  
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Nutrition feeding schedule

▲ How to establish a nutritional feeding schedule?
In order to establish a nutritional feeding schedule that ensures optimal results, it has to be carefully aligned with the nutritional needs of your crop. There are basic nutritional feeding schedules available for all types of crops. 
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▲ How to prevent a shortage of trace elements?
There are, however, various factors - among which the acidity level - that often prevent trace elements from being absorbed by a plant. This creates a nutrient deficiency. Our specialist give you tips on how to preven this problem.
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How do you reduce the input of sodium?
The most important reason to evacuate drain water is often a high sodium infusion. That is why we are giving you two tips to reduce the input of sodium: use the appropriate fertilizers and create a composition with fertilizers that naturally don’t contain sodium.
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 How can problems with the crop's roots be prevented?
Healthy roots form the basis for a healthy plant. Therefore, it's crucial that its roots remain healthy and are not affected by moulds, etc. This article gives several tips on how to keep your crop's roots healthy.
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▲ Why is is necessary to perform a plant juice analysis?
A fertilizer scheme is an important step in horticulture. Therefore, it can be measured by performing a plant juice analysis. In this article several factors that come along the plant juice analysis are explained.
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How do you stimulate plant resistance?
Increasing plant resistance can be achieved by using products that enhance the plant's natural defence mechanism. Products for plant resistance ensure that the plant's natural defence mechanism is strengthened, so that the plant reacts faster and more vigorously to stress situations and diseases.
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Diffuse coatings

▲ How to get maximum protection and heat reduction?
Some cultivations require maximum shading of which the Phalaenopsis is a good example. This plant has a bad tolerance for direct sunlight and heat and therefore requires an almost year-round protection.
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▲ Which different diffuse coatings are available?
Every crop has other needs in case of light and warmth. Therefore various diffuse coatings have been developed that differ fromm each other in terms of light distribution (Haze) and light transmittance (transmission).
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 What is the difference between Q-Heat and D-Gree?
Shading agents are essential in greenhouse cultivation. A large range of shading agents is offered. But which product is most suitable for my crop? Please read the explanation given by our specialist and decide!
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▲ What are the differences between shading agents & coatings?
Shading agents reduce the temperature inside the greenhouse by partially reflecting sunlight. Diffuse coatings are intended to let through as much light as possible. Additionally, it scatters sunlight over a bigger/larger surface and by this it simultaneously ‘divides’ the radiant energy over a larger surface.
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▲ What is diffuse light?
Diffuse light is light that is scattered, causing it to fall on the crop from all sides. The light is evenly distributed, leaving no sharp shadows. Such diffuse coating ensures that a crop is not damaged by excessive light intensity without loss of light.
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▲ How to use a diffuse coating?
In the horticultural sector, diffused light is increasingly used by means of a diffuse coating. This coating scatters the light into the crop and ensures that a crop is not damaged due to too much light. At the same time, there is no loss of light when using a diffuse coating.
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▲ What is the difference between diffused glass and a diffuse coating?
Even though diffused glass and diffuse coatings have similar results, a big difference can be seen. Diffused glass has several advantages and is especially suitable for tomatoes, while a diffuse coating allows the grower to be and remain flexible throughout the entire year. In this article, all ins and outs about these products are provided by our specialist. 
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Shading agents

▲ What is a shading agent?
Many crops are not resistant to full solarization or high temperatures. In this case a shading agent could offer protection. When applying a layer of shading agent that reflects light and reduced heat peaks in climate in the summer could be avoid and crops will be protected.
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▲ What is the difference between powder and liquid shading agents?
The main difference between powder and liquid shading agents is their composition and obviously their form: powder shading agents are fixed and liquid shading agents are: liquid. This has an impact on the resistance, the application and the price of the product. 
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▲ What is the difference between Q3 and Q4 White?
Actually, there is one difference between Q3 and Q4 White, their weather resistance and thus the lifespan. This difference results in clear difference in the application, effort and price of both products. 
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Greenhouse roof cleaning

▲ How do I remove shading agents?
After spring and summer months, the greenhouse must be clean again in autumn to allow your crop to take maximum advantage of natural light. It is therefore important to remove the shading agent from the greenhouse deck in good time. The easiest way to do this is to use a remover.
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▲ Tips for optimal use of sunlight
Light makes sure that photosynthesis takes place in a plant. Therefore, in most cases a grower wants to get as much light as possible in his greenhouse. In this article, our shading agent specialist shares his tips for optimal use of sunlight.
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How can the roof of your greenhouse be cleaned safely?

Cleaning the roof of your greenhouse is something that should not be underestimated. It can have a negative effect on the climate in your greenhouse, since it blocks light. Not enough light entering your greenhouse could also lead to less harvest. In this article, it is explained how the roof of your greenhouse can be cleaned.
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Tips for removing shading agents from your greenhouse
After profiting from shading agents, there's also a time when you need to remove this protective layer again. If you've bought a Q-product (Q4 White, Q3 White, Q-Black, Q-Heat) or a D-product (D-Fuse and D-Gree), our specialist has some removal tips and tricks for you. 
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How do you use glass cleaner in a greenhouse?
Light is the most important thing for the growth of a crop. Therefore, it is recommended to clean the glass of the greenhouse regularly – inside and outside – to remove dirt such as rust, soot, lime, dust and other stains from the glass. A glass cleaner provides a solution.
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Specialists Crop careAny questions?

Do you have any questions about Crop care, or do you want personal advice? Contact one of our product specialists, or use the form below. 

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