What causes strawberry seedling death in greenhouses, and how should it be solved?
After transplanting, greenhouse strawberries need a period of time to recover before they can grow and develop normally, but many growers report serious seedling death after transplanting. So what causes strawberry seedling death in greenhouses? How should it be prevented and controlled? Let's find out together.
1. Strawberry seedlings carrying pathogens
Rainfall during seedling raising caused the seedlings to be infected with fungal diseases, so after transplanting they are very prone to the phenomenon of seedling death, so once diseased seedlings are found, the diseased plants should be pulled out promptly and taken out of the greenhouse, and fungicides should be sprayed at the same time for prevention. In addition, because the symptoms of strawberry anthracnose and red stele root rot are very similar, they must be distinguished during prevention and control. Generally, anthracnose occurs mostly in high temperature and high humidity environments, while red stele root rot occurs mostly under low temperature and high humidity conditions, so the right remedy should be applied for prevention and control.
2. Soil not properly treated
Strawberry seedling death mostly occurs in continuous cropping land or plots where soil treatment has not been carried out. The soil in continuous cropping land carries more pathogens, and the pathogens can easily invade through root wounds, causing the plants to be infected with diseases. Therefore, crop rotation should be implemented; generally, after two consecutive years of planting, rotation is needed. Before planting, calcium cyanamide can be used to disinfect the soil of continuous cropping land, which can provide a certain preventive effect.
3. Improper fertilizer application
When using base fertilizer for strawberries, if undecomposed fertilizer is applied, it contains a large amount of pathogens and insect eggs, which may cause seedling burn, and pests and diseases will take the opportunity to invade. In particular, the consecutive years of using undecomposed chicken manure will have a great impact on strawberry growth, so the base fertilizer must use fully decomposed organic fertilizer or farmyard manure.
4. Planting too deep
The quality of planting also has a great impact on the growth and management of strawberries, so care must be taken when planting. First, pay attention to directional transplanting, with the arched back of the seedling facing outward, so that the inflorescences grow on the outer side for easy picking. The planting depth of strawberries should make the top of the stem and the base of the crown bud level with the soil. It must not be too deep, otherwise the seedling crown will be buried by soil and the heart will easily rot and the seedling will die; if planted too shallow, the root crown is exposed, new roots are not easy to develop, and the strawberry seedlings are also prone to drying up and dying.
The above is an introduction to the causes and solutions of strawberry seedling death in greenhouses. We hope it can help you. To learn more related knowledge, please stay tuned to us.