What kind of fertilizer is organic fertilizer? What is the method of use?

With the continuous improvement of agricultural science and technology, organic food has been paid more and more attention, and organic fertilizer has gradually become a necessary fertilizer in the growth of crops. So what kind of fertilizer is organic fertilizer? What is the method of use?

What kind of fertilizer is organic fertilizer?

Organic fertilizer, also known as "farm fertilizer", mainly comes from plants or animals and is applied to the soil to provide plant nutrition as its main function of carbon-containing materials. Including human feces and urine, stable compost, compost, green manure, cake fertilizer, biogas fertilizer and so on. It has the characteristics of many kinds, wide sources and long fertilizer effect, which can improve soil structure, coordinate water, fertilizer, gas and heat in soil, and improve soil fertility and land productivity.

Second, what is the method of using organic fertilizer?

1. Application of base fertilizer

Applying it evenly during ploughing and soil preparation can improve the soil, but this method is only suitable for planting crops with high density.

2. Topdressing application

There are two methods: deep soil application and extra-root topdressing. The deep application of soil is to apply organic fertilizer near the dense layer of root system and cover the soil after application. Extra-root topdressing is to mix compost with water at 1:10, then take the supernatant after standing, and spray the solution on the crop leaves with the help of a sprayer.

3. Planting fertilizer

There are many methods to apply seed fertilizer, such as seed dressing, seed soaking, strip application, hole application and so on. Seed dressing is a method in which fertilizer is dissolved or diluted with a small amount of water, sprayed on the surface of the seed, sprayed and mixed, so that the fertilizer solution is uniformly stained on the surface of the seed and sowed after drying. Seed soaking is to dilute the fertilizer into a certain concentration of solution, soak the seeds for about a day, and then sow the seeds after drying. After opening ditches or digging holes, fertilizers are applied into ditches and holes of 3-5 cm, and then sow seeds near the fertilizer belt, keeping the distance between seeds and fertilizer at more than 3 cm. The fertilizer used as seed fertilizer requires that nutrients should be released quickly and should not be over-acid or alkali. The fertilizer itself has no toxic effect on seed germination, and the fully mature organic fertilizer after composting is a very good seed fertilizer.

4. Seedling fattening

Generally, sufficient fermented organic fertilizer is added with a certain amount of peat, fly stone or perlite, and soil is mixed evenly as seedling substrate.

5. Full-layer fertilization and centralized fertilization of organic fertilizer

The whole layer application is to spread the organic fertilizer all over the surface and apply the organic fertilizer to the whole soil layer through the cultivated land. this fertilization method can be applied in the case of more organic fertilizer or higher crop density. Concentrated application into the soil is to apply compost near the roots of crops by trenching, which is generally used in the case of less fertilizer and low soil fertility.

Finally, I would like to remind you that organic fertilizer must be fully mature before it can be used, which can avoid crop diseases and insect pests and burn seedlings to the maximum extent.