Causes and Prevention of Strawberry Malformed Fruit

The appearance of bright red strawberry is not only high yield, but also good quality and better efficiency. The uneven and deformed strawberry has not only reduced production but also has low quality and greatly reduced planting efficiency. The shape of the deformed fruit is like a chicken-like aggregated fruit, with a strong appearance, the seed embodies the raised fruit of the pericarp, a fat fruit with a fat shape, a green beak with a sharp fruit tip, and a profiled fruit with a bumpy fruit surface. Looking at the causes of the abnormal strawberry fruit, from a large perspective, one is that the ecological environment is not appropriate, and the second is poor cultivation and management. Specifically, it is affected by factors such as temperature, light, humidity, fertilizer and water management, and pollination. However, from the main factors, one is excessive fertilization and the other is excessive humidity. Strawberry has a large amount of fertilizer and is also sensitive to fertilizer. However, if the amount of basal fertilizer is too large, especially if nitrogen fertilizer such as urea is applied excessively from flowering to flowering, strawberry nutrition will grow too vigorously and the buds will be differentiated. There are many weak buds and weak buds. Due to the imbalance of nutrient elements, the berry development is poor and there are many malformed fruits. In terms of temperature and humidity, light conditions, due to high groundwater level, poor drainage, inadequate ventilation, resulting in excessive humidity; often pollen germination, vitality is constrained, insect pollination inhibition, poor fertilization, easy to form flat-shaped fruit. Of course, if the temperature is too low or too high, insufficient light will affect the production of malformed fruit. In addition, the insufficient number of strawberries planted in the greenhouse will also reduce the fertility rate of strawberries. In order to improve the yield and quality of strawberries, we must seize the main contradiction, create a good water and fertilizer environment, and prevent malformed fruit early. First of all, we must scientifically formulate fertilization. To achieve a combination of organic fertilizer and inorganic fertilizer, in particular, appropriate proportion of phosphorus and potassium fertilizer should be applied. For every 667 square meters, the farmyard manure is crushed between 4,000 and 5,000 kilograms, calcium superphosphate is between 40 and 50 kilograms, and the nitrogen, phosphorus and potassium compound fertilizer is 50 kilograms. Every 20 days after planting, one compound fertilizer was applied one at a time, 10 kg per 667 square meters. Late fertilizer once a month. At the same time, Hui Man Fung active liquid fertilizer and boron fertilizer spray 2 ~ 3 times. Second, regulate the humidity temperature. The use of plastic film insulation cultivation, first, after the flowering to do the surface does not dry easily irrigation; Second, the use of furrow irrigation, with the irrigation with the row; third is to open a large shed outside the ditch, lowering the groundwater level; Fourth, timely lift the waist window Ventilation, control the humidity within the shed does not exceed 40%. At the same time, it is also necessary to pay attention to adjusting the temperature, the minimum temperature is not lower than 0 °C, the maximum temperature does not exceed 32 °C, during the day at 25 ~ 28 °C. Third, do a good job of related supporting measures. The first is to put a bee inside a shed of 333 square meters to increase the probability of pollination; the second is to use high-efficiency and low-toxicity pesticides to prevent pests from flowering; third is to remove deformed young fruit with abnormal shape; and fourth is to constantly wipe out old leaves. Invalid axillary buds, improving light conditions for normal birth of strawberries.

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