1. Before transplanting, plant according to the standard, the aperture (top) is 13-15cm, 10-12cm, mix the fertilizer used in the whole growth period, evenly apply it to the bottom of the fertilizing hole, dig the pool for 8 times, fertilize – 10cm in front of the hole, transplant cabbage seedlings, and cover the soil with fertilizer by the way.
The distance between root planting and hole fertilization is always 8-10cm, which is easy to absorb and will not cause seedling burning.
2. After transplanting or 15-20 days after transplanting, a fertilizing hole with a depth of 13-15cm and a diameter of 10-12cm was dug in the center of every 4 plants. During the whole growth period, all the chemical fertilizers were mixed evenly and then applied to the bottom of each fertilizing hole, and the soil was immediately covered.
Cabbage in the preparation, the whole growth period of fertilizer should be fully mixed, evenly spread on the cultivated land, through repeated rake, fertilizer soil fully mixed, to achieve the whole surface soil fertilizer mixed, the preparation and transplanting.
Now, let me introduce the drum granulator.
Working principle of drum granulator:
The working principle of this series of drum granulator is: the main motor drives the belt and pulley, which are driven to the transmission shaft through the reducer, and work together through the open shaft installed on the gear and the large gear teeth fixed on the body.
The material is fed from the feeding end through the cylinder. Through the function of the internal structure of the cylinder, the particles are made and finally come out through the air outlet. With the continuous entry of materials, the continuous rotation of granulator, in order to achieve mass production.
This machine is the main machine of NPK fertilizer production line.
Advantages of NPK fertilizer production line:
1. Raw materials are widely used
2. The spheroidization rate is high and the survival rate of biological bacteria is high.
3. The process is short
More details, https://organicfertilizermachines.com/fertilizer-mixer/