Don't ignore the management of tomato in winter and spring

Tomatoes are vegetables that like strong light, and insufficient light can also cause flowers and fruits to fall. Reflective curtain can be hung on the north side of greenhouse for protected land production, and at the same time, it should be planted sparsely. The application of photosynthetic nutrient film fertilizer can help plants absorb a large amount of light fertilizer, light energy, light, compatible with conventional fertilizers and nutrients to supply plants to grow and develop to the limit. One application benefits the whole year.

When planting, soil should be taken to avoid root injury, which is conducive to slow seedlings, and plant adjustment should be carried out in time. During the growth period, we can adjust the balance of growth and development artificially by thinning flowers and fruits, pruning branches, picking leaves and picking tops, and control diseases and insect pests in time to promote flower and fruit preservation.

After planting, pay attention to heat preservation, improve ground temperature and air temperature, and prevent damage caused by too low temperature. In winter and spring tomato cultivation, the temperature should be kept at 25℃ in the daytime and 15℃ at night to prevent excessive growth or aging seedlings. In the peak period of results, the outside temperature rises, and ventilation should be increased to prevent high temperature hazards. Under the condition of sufficient light, the indoor temperature of the shed shall be maintained at 25℃~26℃ during the day, 15℃~17℃ at night, 23℃ during the day and night, and the relative humidity of the air shall be 45%~55%.

Strengthen water and fertilizer management. Watering should be done frequently with small amount of water to avoid ponding in the field and prevent soil drought or excessive humidity. Formulated fertilization technology was adopted to ensure adequate nutrient supply and avoid partial application of nitrogen fertilizer. In addition, Caiguo Zhuangdiling was sprayed once in young fruit stage and expansion stage respectively to improve plant water absorption and fertilizer absorption, improve fruit yield and quality, reduce fruit drop rate, and reduce the incidence of cracked fruit, stiff fruit and abnormal fruit.