The tomato planting process is also very important, which is directly related to whether the tomato fruit is abundant. Here is a brief introduction to the specific planting of tomatoes: Tomato temperature requirements:Tomatoes like warmth, and the suitable temperature during the day is 25℃~28℃, and 16℃~18℃ at night. Below 15℃, tomato seed germination, pollination and fertilization, and tomato turning red are affected; below 10℃, growth is slow, reproductive development is inhibited, stems and leaves stop growing at 5℃, 2℃ will cause chilling damage, and 0℃ will freeze to death. Above 35℃, reproductive development is affected, and above 40℃, physiological disorders and heat death occur. Adequate light and appropriate temperature difference are conducive to nutrient accumulation and ripening, promote healthy plant development, prevent excessive growth, enhance tomato's disease resistance and stress resistance, and increase yield. Tomato humidity requirements:The basic principle is that except for the germination, emergence and the seedling slowing period after transplanting, high temperature and humidity are required, and high humidity is not required in other periods. For water requirements, except for proper water control before transplanting, during the flowering period and during the ripening period, sufficient water supply should be ensured in other periods. Principles of tomato nutrition supply:Tomatoes require a large amount of fertilizer, and sufficient nutrition should be guaranteed at all stages. However, the fertilizer requirements at different growth stages are somewhat different. Nitrogen fertilizers are emphasized in the early stage, potassium fertilizers are emphasized in the later stage, and phosphorus fertilizers are required throughout the growth period. However, the demand for potassium fertilizers must be guaranteed during the entire growth period. Under the condition of ensuring the normal growth and development of tomatoes, low-temperature training of tomatoes can not only improve the plant's own heat and cold resistance, but also reduce the cost of heating and insulation. Generally speaking, the optimal temperature is required at the turning point and key period of tomato growth, such as germination, emergence, flower bud differentiation, pollination and fertilization, and ripening period, as well as after seedling transplanting, to ensure the appropriate temperature to promote normal reproductive physiological processes and to heal and resume growth as soon as possible after injury; and before seedling transplanting and transplanting, sufficient training is required to ensure that the plant safely passes through the difficult period after injury, and the temperature can be slightly lower during the normal growth stage. The key to tomato cultivation is to cultivate strong seedlings. The indicators of strong seedlings are 6 to 7 leaves, 60 to 70 days old, 20 to 23 cm high, and 60% to 70% visible flower buds. |
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