What is the utilization rate of chemical fertilizer?
Why does fertilizer burn seedlings?
The reason is too much fertilizer or the seed is too close to the root.
Principle: fertilization increases the concentration of salt in soil water, or the chemical fertilizer directly contacts with the root, resulting in too high concentration of soil nutrients near the root. Based on the principle of water flowing from low concentration to high concentration, the water from the root flows into the soil, and the water from the root of seeds or seedlings flows out, resulting in seedlings.
Can urea be watered immediately after use?
No, because urea is easy to lose.
Do not water immediately after fertilization, it can be converted into ammonium bicarbonate after 2-3 days in summer, and the watering effect will be better.
What are the causes of wheat seedling yellowing?
1. Straw returning (the most common situation).
2. Some diseases or rotten roots of wheat.
3. Wheat is sown deeply and the seedling is weak.
4. The soil is dry.
Is potassium sulfate compound fertilizer or potassium chloride compound fertilizer used for rice?
Under the condition of water flooding, SO42 – was reduced to H2S, which made rice roots toxic and black. Therefore, potassium chloride compound fertilizer is used in rice.
Now we introduce the product is drum granulator, which is the main machine of NPK fertilizer production line;
Features of drum granulator:
1. The granulation rate is 70%, there is a small amount of return material, and the particle size of return material is small, so it can be granulated again.
2. Steam heating is put in to increase the temperature of the material, the moisture of the material is low after entering the ball, and the drying efficiency is improved;
3. Lined with rubber engineering plastics, the raw materials are not easy to adhere, playing a role in anti-corrosion and heat preservation;
4. Large output, low power consumption and low maintenance cost.