Tomato leaf surface fertilization precautions
2024-09-23 11:00:08
According to the growth of tomatoes, the types of nutrients should be determined. Generally speaking, the growth of plants in the early stage is relatively strong, and it is easy to grow. It is necessary to use foliar nutrients that promote stem and leaf growth, and potassium dihydrogen phosphate or compound fertilizer can be used. As a result, the plant growth potential began to weaken at the peak, and the leaf nutrients that promote the growth of stems and leaves should be used to promote the leaves, and urea and sugar can be used.
According to the weather conditions, the types of nutrients should be determined. In the rainy day, the light in the greenhouse is insufficient, and the photosynthesis is poor, so that the sugar supply of the tomatoes is insufficient. At this time, the effect of spraying sugar on the leaves is better.
When the leaves are sprayed with calcium fertilizer, the growth of the tomatoes requires more calcium. When the soil is insufficient for calcium, the fruit is prone to umbilical rot. Therefore, in the tomato fruiting period, calcium chloride, superphosphate, amino acid calcium, calcium supplement, etc. should be sprayed to meet the needs of tomatoes for calcium.
The interval between fertilization of tomato leaves should be suitable for tomato leaves. The appropriate interval is 5-7 days. Spraying inorganic fertilizer on the foliage is easy to produce fertilizer, so the interval should be longer, generally not shorter than 7 days. The interval between spraying organic nutrient fertilizers may be suitably shorter, generally about 5 days.
Foliar fertilization of tomatoes should be combined with disease prevention. Foliar fertilization in winter and spring seasons often causes the air humidity in the protected area to increase significantly, which is easy to cause tomato diseases. Therefore, the number of times of spraying fertilizer on the leaf surface of the cloudy day is less. When applying fertilizer, it is necessary to add protective fungicides such as Antaisheng and DuPont Yibao, and to ventilate for a short time after fertilization to reduce the incidence rate.
When applying the appropriate amount of wounded leaves, apply the clean water to wash off the excess fertilizer and increase the water content of the leaves to alleviate the damage of the leaves. When the soil water content is insufficient, watering is needed to increase the water content in the plant and reduce the concentration of fertilizer in the stems and leaves.
According to the weather conditions, the types of nutrients should be determined. In the rainy day, the light in the greenhouse is insufficient, and the photosynthesis is poor, so that the sugar supply of the tomatoes is insufficient. At this time, the effect of spraying sugar on the leaves is better.
When the leaves are sprayed with calcium fertilizer, the growth of the tomatoes requires more calcium. When the soil is insufficient for calcium, the fruit is prone to umbilical rot. Therefore, in the tomato fruiting period, calcium chloride, superphosphate, amino acid calcium, calcium supplement, etc. should be sprayed to meet the needs of tomatoes for calcium.
The interval between fertilization of tomato leaves should be suitable for tomato leaves. The appropriate interval is 5-7 days. Spraying inorganic fertilizer on the foliage is easy to produce fertilizer, so the interval should be longer, generally not shorter than 7 days. The interval between spraying organic nutrient fertilizers may be suitably shorter, generally about 5 days.
Foliar fertilization of tomatoes should be combined with disease prevention. Foliar fertilization in winter and spring seasons often causes the air humidity in the protected area to increase significantly, which is easy to cause tomato diseases. Therefore, the number of times of spraying fertilizer on the leaf surface of the cloudy day is less. When applying fertilizer, it is necessary to add protective fungicides such as Antaisheng and DuPont Yibao, and to ventilate for a short time after fertilization to reduce the incidence rate.
When applying the appropriate amount of wounded leaves, apply the clean water to wash off the excess fertilizer and increase the water content of the leaves to alleviate the damage of the leaves. When the soil water content is insufficient, watering is needed to increase the water content in the plant and reduce the concentration of fertilizer in the stems and leaves.
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