Fertilizers for guava trees are the most important thing you need to consider if you want your plants to grow well. The nutrients they contain are very good for your plants. You can make a fertilizer by combining lime, compost, perlite, and gypsum. It’s not a bad idea to add an organic accelerator also. If you don’t know how to mix these ingredients, you can find out how to do that in the next paragraph.
1. Types of Fertilizers
1.1 Chemical Fertilizers
The use of chemicals in fertilizers for guava trees can sometimes prove to be harmful to the plants. It may affect the growth pattern of the plants. Some of the effects that you can witness from the usage of chemical fertilizers are leaf discoloration, wilting of the leaves, leaf peeling and also damage to the root system. In some cases, the plant would not grow at all!
1.2 Biological Fertilizers
On the other hand, the use of biological fertilizers can prove to be helpful. Biotic fertilizers are known as the natural fertilizers. They are made from the humus and the decomposition of the waste products that has been deposited on the soil after plowing. These fertilizers are much easier to absorb and work upon by the plants than the chemical ones.
2. Alkaline Phosphate Sulfate (APS) Fertilizer
Fertilizers for guava trees that contain gypsum are best for this kind of plant. Gypsum contains a calcium-rich powder that works as a stabilizer for the pH. Alkaline-phosphate-sulfate (APS) fertilizer is also a good choice. They’re environmentally friendly and highly recommended by nursery workers. However, there’s one downside: they contain a high amount of nitrogen that will overload your plants. So you have to carefully think about the amount of fertilizer to apply.
One inorganic fertilizer that you can use on your guava trees is bentonite. It can also be used as a preventive treatment against aphids. A thick, dark layer of this mineral is available at any garden store. Don’t use it as a primary fertilizer because it may run out before the first set of leaves appear. Just make sure you put a thin layer of it at the first stage of spring.
4. Organic Compost
You can use organic compost fertilizers for guava trees to improve the quality of the soil. This is one of the safest and most effective fertilizers. There are also some inorganic fertilizers that are specially designed for the growth of guava tree. The nutrients come from organic matter such as manure, fallen leaves, and grass clippings. These materials are mixed with liquid grit or bark, which is a waste product from the wood-processing industry.
5. Potassium Nitrate
Potassium nitrate is one of the inorganic fertilizers for guava trees that can be used to prevent or treat brown spots. Brown spots are characterized by yellow spots on the leaves and stems of the plants. They occur because too much wood ash has accumulated on the leaves. This type of fertilizer should be applied before the wood ash begins to decompose. Potassium nitrate attracts insects and helps prevent fungal diseases.
6. Calcium Nitrate
Calcium nitrate is another organic fertilizer that you can use for your guava plant. However, it’s not advisable to use it if the soil already has a heavy load of it. This type of fertilizer provides plant roots with nutrients and improves root growth. Other types of fertilizers should only be used if you haven’t been able to create an environment for the guava tree to grow well.
7. Nitrogen Phosphate Potassium (NPK) Fertilizer
Another one we will look into is the nitrogen-phosphate-potassium (NPK) fertilizer. This is the most commonly used fertilizer and it is available in different forms granular, liquid or dry. We will see later on the benefits of this type of fertilizer.
8. Calcium Carbonate Fertilizer
The calcium carbonate fertilizer has magnesium and sodium in equal proportions. This is a slow-acting fertilizer and works very well. It also creates a soil that is rich in nutrients and is resistant to diseases. However, you may find that the prices of this type of fertilizer are a bit higher than the others.
9.1 Regular Fertilization
Since guava is not a hardy tree, it needs regular fertilization. You should know the growing season of your guava. If it is still in the seed stage, you need to apply a fertilizer that is specifically made for this type of condition. If you wait until the fruit has grown and the leaves have started to change colors, you should use a fertilizer that is appropriate for a tree that has matured.
9.2 Use Free from Chemical Fertilizers
Make sure that the fertilizer you use is free from chemicals. These chemicals can be harmful to the health of your guava. You should also make sure that the fertilizer does not contain wood chips. These materials can harm both the soil and the vegetation around the guava.
There are many things that you need to know about different fertilizers for guava trees. These include the proper amounts to give them, the proper times to apply them, and how to take care of them. There are different fertilizers for guava available in the market. Be sure that you are using the right one. This will not only ensure that your plants survive, but it will also make them grow healthy and strong.