Xiaogu City, Xiaonan District, Wolong Township farmer Ye Guoyun et al. asked: The strawberry we planted has deformed fruit, irregular and disorderly fruit, a chicken-like aggregate fruit, white-colored fruit with pointed tips, and seeds protruding from the fruit. , There are fruit cracks exposed ginkgo and so on, it affects the price. Ask the experts, what is the reason? what should we do? In response to the problems of Ye Guoyun and other farmers, the reporter has connected Yu Hongzhang, an expert in planting in the Xiaogan City Agriculture Bureau. He has visited the fields to solve his problems.
the reason:
The first is excessive nitrogen fertilizer application, the second is insufficient application of boron fertilizer, the third is high temperature and drought, and the fourth is poor drainage.
Measures:
Select high-yield varieties. The deformed fruit rate of some varieties is about 30%, the fruitful rate of Fengxiang and Lihong is high, the deformed fruit rate of All Stars is about 20%, and the deformed fruit of Hani is not more than 10%. Localities can choose according to local conditions.
Scientific formula fertilization. To achieve a combination of organic fertilizer and inorganic fertilizer, in particular, appropriate proportion of phosphorus and potassium fertilizer should be applied. Each acre base fertilizer should be applied to farmyard fertilizer 4000 ~ 5000 kg, 40 ~ 50 kg of superphosphate, 15 kg of potassium sulfate, boron holding capacity of 0.2 kg, nitrogen, phosphorus, potassium compound fertilizer 30 kg. Every 20 days after planting, the compound fertilizer was chased once every 20 days, 10 kg per mu, and applied once a month at a later time. At the same time, spraying Huimanfeng Active Liquid Fertilizer and Sonic Boron 2~3 times.
Control temperature and humidity. Using plastic greenhouse insulation cultivation of strawberries, first, after the flowering does not easily surface irrigation is not easy; Second, the use of furrow irrigation, with the irrigation with row; third is to open a large shed outside the ditch, lower groundwater level; Fourth, timely lift the waist Ventilation of the window, control the humidity within the shed no more than 40%. At the same time, pay attention to adjust the temperature, the minimum temperature of not less than 0 °C, the maximum does not exceed 32 °C, daytime control at 25 ~ 28 °C.
Do a good job of supporting measures. The first is to put a bee into each half-acre shed 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 abnormally shaped young fruit; fourth is to constantly wipe out old leaves, Invalid axillary buds improve light conditions for normal birth of strawberries.
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