Reasons for eggplant falling and fruit drop and prevention measures (with precautions)
Recently, many farmers have reacted, and a large number of aubergines have fallen and fallen. The falling flowers and fruit are the phenomenon that the aubergine flowers fall off from the layers after 3-4 days of opening, and the young fruits cannot continue to expand and fall off. Early spring open field cultivation or greenhouse cultivation will occur. If it is serious, it will affect the eggplant production. What is the reason for the eggplant to fall and fall? How to prevent it? What are the precautions?
1. The reason why the eggplant falls and falls
(1) Deformed flowers appear
Eggplant flowers form malformed flowers such as short stigma and middle column flowers during development, which are not normal results.
(2) insufficient lighting
If the eggplant is in continuous rainy weather during the flowering period, or if the plants are too busy, the leaves are too dense, etc., resulting in insufficient light.
(3) poor soil conditions
If the soil is deficient in fertilizer, the soil is poor, or the nitrogen fertilizer is applied, or the soil is salinized.
(4) Temperature is not suitable
The temperature during the day is over 35 degrees, and the night temperature is above 20 degrees or below 15 degrees.
(5) excessive watering and humidity
The soil is too moist and the humidity is too high.
(6) poor plant growth
If the grower is watering and topdressing without sitting on the eggplant, it is easy to cause the plant to grow up, the reproductive growth is unbalanced, or the plant growth is weak, etc., which will cause the fruit to fall.
(7) Unreasonable use of plant growth regulators
If the grower handles the flower time too early or late, or the temperature exceeds 30 degrees, or the concentration is too large, or the short-column flower, the plant's weak flower, and the plant's long flower will cause the fruit to fall.
(8) pest damage
Pests and diseases occur on plants, which are easy to cause falling flowers and fruit drop.
2, prevention and control measures of eggplant falling flowers and fruit
(1) Cultivate strong seedlings
Suitable seedlings (especially in early spring in open fields and plastic large, medium and small sheds), strengthen seedling management, cultivate age-appropriate seedlings, and avoid the formation of deformed flowers.
(2) Strengthening seedling management
It is recommended that growers choose strong seedlings during planting, eliminate weak seedlings and dead seedlings, and remove the nectar flowers as appropriate. Reasonably control the water seedlings and avoid the formation of long seedlings or aging seedlings.
(3) Watering at the right time
It is recommended that the grower must be watered and topdressed after sitting on the eggplant.
(4) Moderate close planting and pruning
In the greenhouse, the cultivation should be moderately planted, and the old leaves should be used in due course. For young fruit that has been sitting, it is necessary to keep the appropriate number of fruits according to the growth of the plant.
(5) Strengthening the management of the results period
After entering the results period, timely watering, keep the soil dry and wet, each time the amount of topdressing does not need to be too large, to do a small number of times. Take measures in winter and spring to increase light and maintain proper temperature. In the summer and autumn, it is necessary to take measures such as watering in the evening, increasing the air release, and covering the sunshade net to cool down.
(6) Scientific use of plant growth regulators
It is best to treat the flowers that are open on the day, only one time for each flower, and a small amount of red pigment can be added to the solution (for marking). If using anti-falling sputum, use a concentration of 40-50 mg/kg at 15-20 degrees, a concentration of 30-40 mg/kg between 20-25 degrees, and use between 20-30 degrees. Concentration of -30 mg / kg.
If the flower is applied by 24-drip, the flowerbed and the flower stalk can be applied with a 24-drop solution on the brush. The temperature is 20 mg/kg at a high temperature and 30 mg/kg at a low temperature. Flowers should be processed before 10 am and after 4 pm daily.
3, matters needing attention
(1) Select plant growth regulators according to the variety
Treating eggplant flowers with a mixture of 24-drip and gibberellin can only be used on long-chain varieties, and must not be used on round varieties.
(2) Precautions for using 24-drip solution
The length of the flower on the flower stalk should be between 1-2 cm with a 24-drop solution. It should not be smeared around the flower handle, nor can it be stretched with a flower handle. Only use a brush to click on it. The liquid is accurate, otherwise it is easy to induce deformed fruit.
The above are the reasons for the falling and falling of the eggplant and the prevention and control measures. When the farmers plant the eggplant, there will be a phenomenon of falling flowers and fruit. It is necessary to observe it in time, prevent it as soon as possible, and prescribe the right medicine to avoid unnecessary losses.
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