What to Do When Tomatoes Won't Swell? Cause Analysis and Solutions
During tomato cultivation, many farmers often report that their tomatoes won't swell or swell slowly, which deals a serious blow to yields. So what causes tomatoes not to swell? Let's find out together.
1. Improper cultivation management
Tomatoes not swelling is mostly caused by improper cultivation management, and the essential reason is insufficient nutrients or failure to timely supplement the nutrients needed for growth, such as unreasonable fertilization, temperature too low or too low, or insufficient water supply. Therefore, we should adopt a reasonable fertilization method according to the different growth stages of tomatoes and the soil fertility conditions. During the vigorous reproductive growth period, fertilization should focus on phosphorus and potassium fertilizers and control the application of nitrogen fertilizer, which can inhibit vegetative growth and promote reproductive growth.
2. Unbalanced growth
Because of excessive vegetative growth or excessive vigor, reproductive growth and vegetative growth become uncoordinated, which inhibits the normal growth of the fruit, that is, what is commonly called "growing stems but not fruit." The main causes of this phenomenon are too much nitrogen fertilizer, a small day-night temperature difference, and excessive watering. So during management, the plant's excessive vegetative growth and excessive vigor must be controlled. Excessive vegetative growth weakens reproductive growth, causing a drop in fruit set rate and failure to swell. Controlling excessive vegetative growth means controlling the amount of watering, appropriately reducing watering, and adopting the principle of frequent light watering rather than flood irrigation. When watering, lower the night temperature and widen the temperature difference, which can promote reproductive growth. At the same time, spray trace elements such as boron and calcium.
3. Too much nitrogen fertilizer
Applying too much nitrogen fertilizer is a common fertilization mistake in greenhouse cultivation, because fertilizers antagonize each other. If too much nitrogen fertilizer is applied, it will affect the plant's absorption of elements such as potassium, boron, calcium, and magnesium, and these substances are important elements for tomato fruit swelling. Once deficient, the fruit will be unable to swell. So during the growth period, the application of nitrogen fertilizer should be controlled, and phosphorus and potassium fertilizers and trace element fertilizers should be appropriately applied as supplements.
The above is an introduction to the causes of tomatoes not swelling and the solutions, hoping it can help you. To learn more related knowledge, please follow us.