The warmer weather in spring, the increase in air humidity, and the artificial factors such as fertilization can easily cause the strawberry to grow and affect the yield.
Prosperous reason
Watering too much strawberry absorbs too much water, the vegetative growth is greatly enhanced, it starts to grow, consumes photosynthetic nutrients and mineral nutrients, and the nutrients distributed to fruits, roots and flower buds are relatively reduced, the fruit is difficult to grow, flower buds are difficult to form, Root growth is inhibited and the flowering branches are elongated at later stages.
Too much nitrogen fertilizer If too much nitrogen is applied, the increase in nitrogen is caused by the increase in nitrogen, the color is green, the plant is soft, and it is easily damaged by humans, which further causes various diseases. The stem is weak, the petiole becomes thinner, and it is easy to fall; the excessive number of leaves will make the ventilation and light transmission worse, and it is easy for the middle and lower leaves to prematurely decay.
The temperature is higher during the day and the temperature is required to be 23 to 25 ° C and 8 to 10 ° C during the night. This is beneficial to flowering and fertilization and fertilization. Spring temperature began to rise, plant growth rate increased, combined with sufficient fertilizer, just as the summer temperature is high, the strawberry seedling grows fast, causing it to grow.
The growth regulator uses irrational gibberellin to make the plant grow long, the petiole is long, and especially the inflorescence will stretch very long.
Solution
The most fundamental reason for Wang Chang is the excess of fertilizer and water. A large amount of base fertilizer has been applied before planting. If the water is not controlled, the plant will absorb a large amount of nitrogen, and the result will be prosperous. So the simplest and straightforward way is to control the moisture and reduce the quick-acting nitrogen fertilizer.
Increase ventilation to reduce the temperature inside the shed. At this stage, it is necessary to pull the air vent on sunny days to increase the ventilation volume, effectively reduce the temperature inside the shed, especially the night temperature, and control the temperature within a reasonable range. If the night temperature is too high, the air vent may not be closed.
At the same time of chemical control, a low concentration of potassium dihydrogen phosphate can be added to increase the thickness of the leaves. During the flowering period, do not spray potassium dihydrogen phosphate, and the amount of phosphorus and potassium fertilizer can be applied in an appropriate amount, and the multiple is controlled at 300 to 500 times. Thereby controlling stem and leaf growth.
If the amount of side buds is large, it should be removed in time to avoid excessive side buds to waste nutrients. Generally, 1 to 2 side buds per plant can be left. Strawberries that have matured on the plants should be removed in time to avoid affecting the subsequent strawberry growth.
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Strawberries with dense plants should be timely removed from old leaves, diseased leaves and overly dense overlapping leaves to create a ventilated and light-transparent environment for strawberry plants to facilitate their growth, and to avoid the occurrence of aphids and other hazards. .
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