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2, according to the weather conditions to determine the type of nutrition cloudy snow weather, lack of light in the greenhouse, poor photosynthesis, tomato sugar supply is insufficient, the effect of foliar spray is better.
3. The timely spraying of calcium fertilizer on leaves requires more calcium for fruit growth. When the soil supply is insufficient for calcium, the fruit is susceptible to umbilical rot. Therefore, it is advisable to spray calcium chloride, calcium superphosphate, calcium amino acid, calcium supplement and other calcium fertilizers to meet the tomato calcium requirement during the tomato fruiting period.
4. The appropriate time interval for application of tomato leaf foliar fertilization to the suitable time for tomato leaf surface fertilization is 5 days to 7 days. Wherein, the inorganic fertilisers that are easy to produce fertilizers on the foliar spray should have longer intervals, generally not less than 7 days, and the organic nutrient spraying time can be appropriately shorter, generally about 5 days.
5, pay attention to the prevention of disease tomato leaf fertilization should pay attention to the combination of disease prevention and prevention, greenhouse greenhouse fertilization in winter and spring season, often cause indoor air humidity increased significantly, easy to cause tomato disease. Therefore, the number of sprayed fertilization materials on cloudy days is less. When fertilizing, protective fungicides such as Antaisheng and Dupont are added, and ventilation is carried out after fertilization to reduce the incidence.
It is widely used in RICU and ICU.
Fertilizer Notes for Greenhouse Tomato Leaves
1, according to the growth of tomatoes to determine the type of nutrition In general, the results of the previous period, plant growth is relatively strong, easy to grow, should use less to promote the growth of leaf and leaf nutrition, potassium dihydrogen phosphate, compound fertilizer can be used. At the end of the result, the growth potential of the plants began to weaken, and the leaf nutrients that promote the growth of stems and leaves should be used to promote the protection of the leaves. Urea, sugar and special foliar nutrients such as Dayuan No. 1 and Jiakean can be used.