The Spring Festival has passed, the temperature is slowly rising, and the wheat has entered the greening period at this time. It is a matter for the growers to feed the wheat back to the green fertilizer. However, when topdressing, many people do not understand, what kind of fertilizer should be used? Is it urea or foliar fertilizer? Let's take a look at it below.
First, the effect of different fertilizers on wheat growth
1, urea
Urea is a fertilizer that many growers will choose, and 20-30 kg per mu. As a high-concentration nitrogen fertilizer, urea can promote wheat growth, and it is inexpensive and low-cost, and is suitable for normal growing wheat plots.
2, high nitrogen compound fertilizer
Many growers use high-nitrogen compound fertilizers to topdress. When wheat is planted, the application of too little base fertilizer is prone to deficiency syndrome. The symptoms are redness and purpleness of wheat seedlings, such as a single nitrogen supplement, which is not easy to relieve. It also needs to supplement phosphate fertilizer and potassium fertilizer, but mainly nitrogen. It is best to apply high nitrogen compound fertilizer.
3, foliar fertilizer
Spraying foliar fertilizer on wheat can supplement the nutrients needed for wheat growth, but some farmers will not divide the foliar fertilizer into topdressing. Only a small number of growers will choose foliar fertilizer when compared with urea, compared with urea and high nitrogen. Compound fertilizer, foliar fertilizer will be more complicated, need to spray several times.
Second, wheat topdressing matters needing attention
1, top dressing time
If the wheat grows well during the greening period, there are many tillers and the plants are vigorous, then the time for topdressing can be delayed. If the growth is weak, the tillers are less, the seedlings are weaker, and the fertilizer can be properly applied.
2, the amount of topdressing
Wheat grows well, and the plot has strong fertilizer and water retention capacity, and can be applied less properly to avoid prolonged phenomenon; on the contrary, if the wheat grows weak and the plot is poor, it can be applied appropriately to ensure wheat Nutrient demand.
3, topdressing method
When topdressing is not recommended, the application of the ditch is best, especially when urea is applied (urea is converted to ammonia, which is volatile), and the ditch is applied to the soil, and the utilization rate can be greatly improved.
The above is the introduction of wheat to green and topdressing. As the weather is fine, the field should be able to see many farmers paying for wheat. If you don't understand, you can also ask experienced growers.
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