The cause of cabbage cracking 1, too little fertilization.
Cabbage cracked, probably because there was too little fertilization. Chinese cabbage has a great demand for nutrients in the process of fruiting. At this time, too little nutrition is provided to plants, which will lead to poor growth of cabbage and cracking of leaves. Therefore, when cabbage is in the fruiting stage, it is necessary to provide fertilizers mainly composed of nitrogen, phosphorus and potassium.
2, watering too much
The cabbage is cracked, which may also be the reason for watering too much. Although Chinese cabbage is a water-loving plant, frequent water supply will cause the roots of plants to soak in water, which will lead to rot, and Chinese cabbage will also crack because of the loss of nutrient supply, so it is necessary to strictly control the water content of plants in the later maintenance.
3. The temperature is too low
Cabbage cracking may also be due to the drop in temperature. Chinese cabbage is suitable for growing in high temperature environment, but the climate in the south changes greatly. If the temperature drops suddenly, it will cause the cabbage to freeze and crack. Therefore, when the temperature drops, it is necessary to take heat preservation measures for cabbage, and it is best to build a greenhouse for plants.
4. Suffer from illness
Soft rot will occur during the growth of Chinese cabbage, and its leaves will be corroded by bacteria, leading to cracking. At this time, it is necessary to dig out the diseased plants and burn them to avoid infecting other healthy plants. You can also spray carbendazim solution on other cabbages to kill the germs on the plants and make them grow healthily.