How to Choose Organic Fertilizer

Nitrogen, phosphorus and potassium (N-P-K) in fertilizers are the three most important elements that affect plant growth. When we buy fertilizers, we mainly refer to these three indicators. Generally, the number indicated on the bag of fertilizer is the content of certain N-P-K. For example, an organic fertilizer marked as 5-2-4 is 5% nitrogen, 2% phosphorus and 4% potassium.

The role of nitrogen fertilizer: The role of nitrogen fertilizer is mainly to help plants to better photosynthesize and promote the growth of branches and leaves. The most important thing is to use nitrogen fertilizer for growing leafy vegetables.

The role of phosphorus fertilizer: The role of phosphorus fertilizer is to promote the growth of the root system, as well as to promote flowering and fruiting.

The role of potassium fertilizer: Potassium fertilizer can adjust the metabolism of plants, make the stems of plants more robust, and enhance the resistance of plants to collapse and pests and diseases.

How to choose organic fertilizer?

Once you understand the above concepts, then choosing which organic fertilizer to use is very simple. For example, if you want to choose organic fertilizer as a base fertilizer when transplanting in spring, you can choose to make your own food waste compost or buy organic slow-release fertilizer, which is more commonly available in granular form as bone fertilizer and blood fertilizer. These two types of fertilizers have a higher nitrogen content in them, which is perfect for the needs of the pre-plant growth of the crop.

If you want to choose organic fertilizer to use for chasing fertilizer. Then, liquid organic fertilizer is more beneficial to the absorption of plants. However, liquid organic fertilizer is more expensive than solid organic fertilizer. Of course, the use of solid organic fertilizer for fertilization, although the absorption is slower, but the fertility is basically the same.

When choosing organic fertilizer, you should choose the corresponding organic fertilizer according to the different focus on nitrogen, phosphorus and potassium required by different stages of crop growth. Of course, if you find it more troublesome, you can also choose to use organic fertilizers with similar values of nitrogen, phosphorus and potassium. This kind of organic fertilizer can be applied to the whole growth stage of plants.