How to scientifically apply phosphate fertilizer when growing wheat
Wheat is a grain crop with a relatively large planting area in our country, and it is also one of the main staple foods in many regions. There are still a great many people growing wheat today, and when growing wheat, we need to do a good job of fertilizing. When fertilizing, we must pay special attention to the application of phosphate fertilizer, so when growing wheat, how should phosphate fertilizer be applied? Today the editor will briefly introduce this for everyone, let us take a look below!
1. Apply mixed and fermented with organic fertilizer
Organic fertilizer contains a great many nutrient elements, including rich organic matter, phosphoric acid and various organic weak acids. It can transform some insoluble phosphorus into soluble phosphorus. Therefore, it is very suitable to apply phosphate fertilizer mixed with organic fertilizer. Moreover, mixed application can also reduce the contact area between phosphate fertilizer and soil, avoiding the fixation of phosphorus by the soil. Therefore, by composting phosphate fertilizer together with organic fertilizer and then applying it, we can not only improve the utilization rate of phosphate fertilizer, but also avoid the phenomenon of seedling burn caused by too much phosphate fertilizer.
2. Apply in combination with nitrogen, potassium and zinc fertilizers
When applying phosphate fertilizer, we can also apply it mixed with fertilizers such as nitrogen, potassium and zinc fertilizers. First, we need to mix them according to wheat's demand for elements such as nitrogen, potassium and zinc when applying phosphate fertilizer. This can not only avoid insufficient nutrients in the soil, but also improve the utilization rate of phosphate fertilizer. However, attention should be paid to maintaining a good application ratio of each fertilizer. For example, in high-yield wheat fields, the application amount of organic fertilizer is about 4000kg, phosphate fertilizer 50kg, and then the ratio of nitrogen, potassium and zinc is kept at about 30:12:1.5, etc., ensuring the nutrition needed for wheat growth is met.
3. Concentrated application
When applying phosphate fertilizer, it is best to pay attention to concentrated application. Because when phosphate fertilizer is applied in a concentrated way, it can prevent the contact area between phosphate fertilizer and soil from being too large. This would cause too much phosphorus to be fixed by the soil and reduce the utilization rate of phosphorus. Therefore, everyone should not apply phosphate fertilizer in a scattered way; only by ensuring the utilization rate of phosphate fertilizer can the fertilizer effect of phosphate fertilizer be improved. Professional data surveys have also shown that when phosphate fertilizer is applied in a concentrated way, its utilization rate can be increased by about 28%, and wheat yield can also be increased by 12%.
4. Precautions
The application of phosphate fertilizer cannot be done blindly. When applying phosphate fertilizer, we should pay attention to the nature of the soil. If the soil is neutral and calcareous alkaline soil, then when applying phosphate fertilizer, we should mainly use water-soluble superphosphate. At the same time, we should also pay attention to controlling the application amount of phosphate fertilizer; wheat yield will gradually decrease as the amount of phosphate fertilizer increases. But if the amount used is too small, then the yield increase per unit area will not be very obvious either. Generally, about 50kg should be applied per mu.
The above is a brief introduction to how to apply phosphate fertilizer when growing wheat. That is all for today's introduction. This article is for reference only, and I hope it can be helpful to everyone!