Tomato cultivation characteristics

Tomatoes are generally annual herbaceous plants with deep roots and well-developed roots. They are widely distributed and widely distributed. The main root group is distributed in the 30-60 cm plough layer and the deepest reaches 1.5 m. The root group can be distributed horizontally up to 60-130 cm in diameter. This is the theoretical basis for the theory of “deeply planted tomatoes” on production. Tomato has the biological characteristics of warm temperature, hi light, frost, heat, fertilizer and semi-drought. When the content of carbon dioxide in the air is normal, the optimum temperature for photosynthesis is 20-25 ° C, and the temperature is lowered. At 10 °C, the plants stopped growing, and the lethal low temperature of tomato was generally -1 to -2 °C. When the temperature rises to 30 ° C, photosynthesis is also significantly weakened, and when it is above 35 ° C, growth stops. High temperature also interferes with and destroys reproductive growth, especially in the meiosis and fertilization period of flower bud development. It is suitable for cultivation in the fertile soil of deep, well-drained and organic-rich soil. Tomatoes have many diseases and must be rotated with other vegetables other than Solanaceae vegetables for a period of 3 to 5 years.