In recent years, with the rapid development of strawberry cultivation, many farmers' friends have not fully mastered the cultivation and management techniques of strawberries. The phenomenon of repeated cropping and continuous cropping often causes some diseases of strawberry to occur, soil-borne diseases, nutritional imbalance, and physiological disorders. A series of problems; in strawberry production, stunting or seedling growth after seedling establishment is an important factor causing the decrease of strawberry yield; the influence of extreme weather such as low temperature in winter and the abuse of hormones often cause the receptacle to be frozen and deformed, etc. The yield and quality are greatly affected.
In view of the prevailing problems in current production, farmers are recommended to develop a simple and efficient greenhouse strawberry cultivation technique.
Choose seedlings and colonization. Choosing quality strawberry seedlings is the key to colonization. Local suitable varieties should be selected according to different regions. When planting, it often causes low survival rate due to high temperature weather, often replenishing seedlings, causing trouble to strawberry producers. Here, we recommend a method to improve the survival rate: using the "Bi-protection" 5000 times solution plus fungicides for 0.5 to 1 hour, can increase the survival rate, and at the same time reduce the occurrence of soil-borne diseases.
Seedling management. After Miao Dingzhi survives, it is often caused by excessive temperature because it is too high. At this time, attention should be paid to removing old leaves and stolons and axillary buds in time, which can adjust the hormone balance in the plants, cover the shading net, reduce the temperature, and facilitate flower bud differentiation. However, it is not conducive to rooting; it can be used by “Bai Hu†7500~8000 times foliar spray or 20,000 times drip irrigation to promote roots and strong seedlings, inhibiting the length, combined with trace elements such as boron, zinc and iron to promote flower bud differentiation.
Flower and fruit management. After entering the late autumn, with the decrease of temperature, low-temperature short-day sunshine is beneficial to flower bud differentiation. The quality and quantity of flower bud differentiation is the basis for the next year's high yield of strawberry. If the growth is strong, the root treatment can be carried out to avoid prolongation; Can affect vegetative growth and reproductive growth, generally leave 4 to 5 healthy leaves. After the bud, the "Bai Hu" 3 grams of water with 30 ~ 45 kg of foliar spray, can promote uniform flowering, uniform fruit size, and promote early maturity, improve quality, improve the sugar content. On December 15th, 2008, in the Green Forest Technology Demonstration Park of Lixinzhuang Village, Shandongzhuang Town, Pinggu District, Beijing, sprayed with “Bibao†(variety is Charlie): the first time, 6 fruit sets, all sit together. The two spikes began to appear. The fruit is large, and some fruits are harvested. The weight of single fruit is 40~50 grams, and the sugar content is 11%. The strawberry garden without “Baihu†is not neatly arranged for the first time. The individual fruits just begin to mature, and the fruit weight is only 35~40 grams, 8% sugar content.
Pest Control. Due to high temperature and high humidity in the greenhouse, there are often gray mold, powdery mildew, leaf spot and verticillium. The prevention and treatment of diseases are mainly prevention. Pay attention to ventilation and dehumidification, and remove the diseased leaves in time. Once the disease occurs, Foliar spray can be carried out with 15000 times plus 10% Shigao or 50% Kulinking. “Bi-protection†can improve the efficacy of pesticides, inhibit the spore germination of pathogens, and promote cell repair after disease.
Strawberry pests mainly include aphids, red spiders, etc., and can be controlled by 10% imidacloprid and 2% avermectin spray. Dosing is prohibited 20 days before harvest.
Fertilizer use management. Due to the long growing time after strawberry planting, many fruit farmers often apply a large amount of farmyard manure before planting, sometimes it is an unfertilized farmyard manure. The result is often accompanied by diseases and nematodes. It can be combined with some ammonium bicarbonate to reduce Pests and diseases occur. After the strawberry seedlings are planted, if the fertilizer damage (burning phenomenon) occurs, use the “Bi-protection†5000 times plus amino acid fertilizer spray to promote the recovery of the seedlings. Before the flowering in winter, due to the low temperature, it is not conducive to pollination and fruiting, and it is prone to deformed fruit. At this time, the use of “Bi-protection†5000~7500 times plus trace element boron for foliar spraying can reduce the occurrence of deformed fruit.
Due to the imbalance of leaves caused by nutrient imbalance or the phenomenon of dry burning, the roots can be promoted by spraying 7500 times of foliar spray or 20000 times.
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