How to choose corn seed fertilizer? Keep these precautions in mind
Corn is a major food crop in China, with a very wide distribution in the northern regions. When planting corn, fertilization is indispensable. Among them, seed fertilizer is even more important, as it is directly linked to corn yield and growth capacity. So how should corn seed fertilizer be chosen? How should it be applied? What precautions are there? Below, the editor will introduce them one by one. Let's take a look!
1. Seed fertilizer selection
There are many fertilizers that can be used as corn seed fertilizer, but there are also fertilizers unsuitable for use as seed fertilizer. For example, potassium chloride, ammonium chloride, etc. These fertilizers produce large amounts of chloride ions. Chloride ions are very unfavorable to the growth of corn seeds and seedlings. In mild cases, they hinder seedling growth; in severe cases, too much heat is generated, causing the seedlings to be burned. Then there is ammonium bicarbonate. Ammonium bicarbonate has very strong volatility and corrosiveness, and can easily cause seedling damage. If the application ratio exceeds 2%, adverse phenomena such as toxicity and fertilizer damage will occur. Therefore, corn seed fertilizer should mainly be compound fertilizer, which can both ensure fertilization safety and meet nutritional needs.
2. How to apply
There are many application methods for corn seed fertilizer. First, the seed dressing method can be used. First decompose and ferment fertilizers such as biological fertilizer and trace elements, then spray them fully and evenly on the seeds. Generally, while spraying, stir the seeds to ensure the seeds are evenly coated. Then the seeds can also be decomposed into liquid, and the seeds can be placed in it to soak for half a day, and after air-drying they can be sown. Finally, there are the most commonly used band application and hole application, generally mainly using chemical fertilizers. However, note that the seeds must not come into contact with the fertilizer to avoid burning, and the depth should be controlled at about 12 cm.
3. Benefits of applying seed fertilizer
There are many benefits of corn seed fertilizer, mainly to meet the nutritional needs of corn in the early growth stage. Generally, it should be determined according to factors such as soil fertility, and it is usually applied on plots with insufficient fertility. The main composition of seed fertilizer is nitrogen and phosphorus fertilizers. Moreover, in areas with high terrain and cold conditions, because the ground temperature is relatively low, phosphorus elements are even more insufficient. If not supplemented in time, it will seriously affect seed germination. Proper phosphorus fertilizer can not only increase the emergence rate, but also enhance disease resistance.
4. Precautions
When applying seed fertilizer, attention must be paid to reasonably selecting the variety of seed fertilizer. If the seed fertilizer is chosen improperly, it will not only fail to promote corn growth, but will also lead to adverse phenomena such as toxicity. Then attention should be paid to supplementing correspondingly according to the nutrient deficiency phenomenon in the field. If chemical fertilizer is used as seed fertilizer, then the dosage must also be well controlled, and it must never be applied excessively. This prevents reducing the seed germination rate, damaging the soil structure, and causing environmental pollution.
The above is a brief introduction to corn seed fertilizer selection and precautions. The application of corn seed fertilizer is very important to corn growth, so everyone must pay close attention. That is all for today's introduction. This article is for reference only, and I hope it can be helpful to everyone!