How to fertilize tomatoes?

How to fertilize tomatoes?

Fertilizing tomatoes in a greenhouse does require some attention, so here are a few points to note when fertilizing tomatoes:

Tomato fertilization tips:

1. Determine the type of nutrition according to the growth of tomatoes: Generally speaking, in the early stage of fruiting, the plants grow vigorously and tend to grow too long, so less foliar nutrition that promotes stem and leaf growth should be used, and potassium dihydrogen phosphate, compound fertilizer, etc. can be used. In the peak period of fruiting, the growth of the plants begins to weaken, and more foliar nutrition that promotes stem and leaf growth should be used to promote seedlings and protect leaves. Urea, sugar, Dayuan No. 1, Jiakean and other special foliar nutrient solutions can be used.

2. Determine the type of nutrition according to weather conditions: In cloudy and snowy weather, there is insufficient light in the greenhouse, photosynthesis is poor, and the sugar supply of tomatoes is insufficient. Spraying sugar on the leaves is more effective.

3. Spray calcium fertilizer on the leaves in time: During the fruiting period of tomatoes, it is recommended to spray calcium fertilizers such as calcium chloride, superphosphate, amino acid calcium, and calcium supplement to meet its needs for calcium.

4. The interval between foliar fertilization should be appropriate: the appropriate interval is 5-7 days. The interval between inorganic fertilizer spraying is generally not less than 7 days, and the interval between organic fertilizer spraying is generally about 5 days.

5. Foliar fertilization should be combined with disease prevention: spray fertilizer on the leaves less frequently on consecutive cloudy days, add protective fungicides when fertilizing, and ventilate for a short time after fertilization to reduce the incidence of disease.

6. Improper use of foliar fertilizer: When leaves are injured, wash the leaves with clean water to wash away excess fertilizer, increase the water content of the leaves, and alleviate the degree of damage to the leaves. When the soil water content is insufficient, watering is also required to increase the water content in the plant and reduce the concentration of fertilizer solution in the stems and leaves.

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