Basic knowledge of phosphate fertilizer

Phosphate fertilizer is one of the commonly used chemical fertilizers in agricultural production. Its main function is to promote the development of crop root systems, enhance disease resistance and increase crop yields. The main component of phosphate fertilizer is phosphorus pentoxide (P ₂ O ₅ ). Common phosphate fertilizers include calcium magnesium phosphate fertilizer, superphosphate, etc.

Phosphate fertilizer requirements of different crops

Different crops have different requirements and application methods for phosphorus fertilizer. Mastering these techniques can improve the effectiveness of fertilization and avoid wasting resources. For example: 🌾

1. Wheat

Wheat is more sensitive to phosphate fertilizers, so it is recommended to apply phosphate fertilizer as a base fertilizer before sowing. Usually, applying 15-20 kilograms of superphosphate per acre is more effective and can significantly increase the germination rate and growth rate of wheat.

2. Corn

Corn requires higher amounts of phosphorus fertilizer. Applying 20-30 kilograms of superphosphate per acre before sowing can promote root development and improve disease resistance. Fertilizing early is more effective.

3. Rice

The demand for phosphorus fertilizer during rice growth is concentrated in the tillering and heading stages. Usually 12-15 kilograms of superphosphate are applied per acre, and the specific dosage can be adjusted appropriately according to soil fertility and growth stage.

4. Soybeans

Soybeans have a high demand for phosphorus fertilizer. Applying 15-20 kilograms of superphosphate per acre can promote the activity of rhizobia, improve nitrogen fixation capacity and increase yield.

Things to note when applying phosphate fertilizers

When applying phosphate fertilizer, you need to pay attention to the following points:

1. Appropriate application: Different crops have different needs for phosphate fertilizers. Excessive application not only wastes resources, but may also affect crop growth.
2. Even application: Avoid concentrated applications of phosphate fertilizer and ensure that the fertilizer is evenly distributed in the soil.
3. Combined with organic fertilizers: Phosphate fertilizers combined with organic fertilizers have better results and can improve soil fertility.
4. Pay attention to soil pH: Phosphate fertilizer works better in acidic soil. When applying it in alkaline soil, you need to pay attention to adjusting the soil pH.

Summarize

Understanding the application techniques of phosphate fertilizer in different crops can effectively improve the yield and quality of crops. During the application process, farmers should apply phosphate fertilizer scientifically and rationally according to the specific needs of the crops, paying attention to the amount and method of fertilization to achieve the best results.