Fertilizer selection skills, easily pick out good fertilizer!

For many farmers, fertilizer is the root of the development trend of agriculture, in order to improve the production and quality of food crops, it is inevitable to apply all kinds of fertilizers, but if false fertilizers are applied, it will not only make saline soil agglomerate, but also reduce the content of soil organic matter, resulting in a reduction in the production of food crops, so the application of fertilizer is not only key, but also very important. Next, let's take a look at the fertilizer selection method.

1. Depending on the situation

Without sufficient retting fertilizer or harmless fertilizer can not be used, otherwise it will lead to environmental pollution of * soil, disease or burn seedlings, generally sold in the market fertilizer dark than light soil organic matter content, if it is pure black fertilizer selection must also be careful, it is very likely to be fake failed fertilizer. In addition, when you keep twisting and pressing the fertilizer with your fingers, you find that there is a feeling of burning hands, which indicates that the fertilizer will be mixed with pebbles or other residues.

2. Look at the moisture content

High-quality fertilizer gives people a feeling that it is neither dry nor wet. If you hold the fertilizer in your hand and feel very dry and irritable or the fertilizer cannot be dispersed after letting go, it shows that it is fake and shoddy fertilizer, this kind of fertilizer is not easy to absorb moisture and dissolve, and it is very easy to cause fertility outflow. In addition, fertilizers with excessive humidity in the environment can not be bought.

3. Measurement of water solubility

The higher the water solubility of the fertilizer, the better the quality. because crops only digest, absorb and use the dissolved fertilizer nutrients, insoluble fertilizers cannot be digested, absorbed and utilized by crops, and can put the fertilizer into water and observe its solubility. the fertilizer that can be completely dissolved and there is no precipitation at the bottom is a high-quality fertilizer, if it is not dissolved, or after dissolution, it shows that there are more residues in the fertilizer.

4. Smell the average temperature of fertilizer

The high-quality fertilizer of thorough retting fertilizer contains fragrance, when choosing and buying fertilizer, you can put the fertilizer on your nose and smell it. If you smell ammonia, you will add urea in the middle. This kind of fertility is relatively short, and it is very easy to cause root burning. It is not suitable for food crops. In addition, if the fertilizer contains a choking smell or rotten smell, it is a relatively poor fertilizer. You should pay more attention to it when you buy it.

5. Fertilizer comparison

The difference in the price of different fertilizers is specifically reflected in the standard cost of raw materials, while the price of organic chemical fertilizers is mainly shown in quality, so when choosing and purchasing fertilizers, we can compare them more. if the same fertilizer, the price difference is quite big, there is no doubt that the quality of fertilizer is not very good, you need to pay attention to identification in the case of selection and purchase.

To sum up, this is the end of the detailed introduction on fertilizer selection. If we want to select high-quality fertilizers, we must grasp the selection methods of technical specialties, and look forward to having some assistance to everyone in this article.