Common Mistakes in Growing Tomatoes: What Negatively Affects Yield

Growing tomatoes can yield a generous harvest if the right agronomic practices are followed. However, this crop is sensitive to many factors that can negatively impact its development and fruiting.

This is reported by AgroReview

What Conditions Are Unfavorable for Tomatoes

Tomatoes do not tolerate overcrowding, as this restricts air circulation, and excessive moisture promotes the development of fungal diseases. Additionally, the plants begin to compete with each other for light and nutrients.

• Excessive Watering. When the soil is too wet, the risk of fruit cracking, root rot, and the spread of blight increases. It is optimal to water tomatoes moderately, at the root.
• Temperature Fluctuations and Cold. A drop in nighttime temperatures to +10 °C and below slows plant growth, leading to flower and fruit drop.
• Heat Above +30 °C. In high-temperature conditions, pollen becomes sterile, fruit set drops, and fruits may suffer from sunburn. On hot days, it is advisable to provide shading and ventilation in greenhouses.
• High Humidity. The combination of heat and humidity creates ideal conditions for the development of blight and other fungi, especially in greenhouse conditions.
• Watering on Leaves. Water on leaves and fruits in sunny weather can cause burns, while in humid periods it can lead to disease development. It is recommended to use drip irrigation or to moisten the soil only at the roots.
• Prolonged Shading. For normal development, tomatoes need at least 6–8 hours of sunlight per day. In the shade, the plants stretch out, and the fruits ripen more slowly and lose flavor.
• Fresh Manure at the Roots. Using fresh organic fertilizer can burn the roots and stimulate excessive growth of green mass instead of fruiting.
• Sharp or Excessive Fertilization. Exceeding nitrogen doses causes “greening” of the plants, while excess potassium worsens the taste quality of the fruits and makes their skin tougher.

Additional Tips for Successful Cultivation

“Note that tomatoes grow better in beds where the predecessors were onions, cabbage, cucumbers, pumpkins, carrots, and beets. Follow crop rotation to avoid problems with nutrient deficiencies and diseases”.

Choosing the right predecessors and adhering to crop rotation will help avoid many common problems. Following these recommendations will lead to healthy plants and a bountiful harvest of delicious tomatoes.