In recent years, although the area of ​​strawberry cultivation has developed rapidly, most farmers have lack of cultivation and management techniques for strawberries, which leads to serious problems of repeated cropping and continuous cropping, which causes some diseases of strawberries to occur. In addition, due to a series of problems such as aggravation of soil-borne diseases, imbalance of nutrients, and physiological disorders, strawberry growth is delayed after planting or the seedlings are long, resulting in a decrease in strawberry yield. Coupled with the frequent occurrence of extreme weather in winter and the abuse of hormones, it often causes the receptacle to be frozen and deformed. In view of the current problems in production, it is recommended to provide a simple and efficient cultivation technique for fruit farmers.
Choose seedlings and colonization. Choosing high-quality seedlings is the key to planting survival, and local suitable varieties should be selected according to different regions. Colonization often results in low survival rates due to hot weather. Ways to improve survival rate: 5,000 times of protection and 50-1 hours of chlorpyrifos can increase the survival rate and reduce the occurrence of soil-borne diseases.
Seedling management. After colonization, due to the high temperature, it is easy to cause seedlings to grow. At this time, it is necessary to remove the old leaves and stolons and axillary buds in time to regulate the hormone balance in the plants. Covering the sunshade net can lower the temperature and facilitate flower bud differentiation, but it is not conducive to rooting. In this case, it can be sprayed with 7500-8000 times or 20,000 times drip irrigation to promote roots and strong seedlings, and inhibit the growth of flower buds in combination with trace elements B, Zn and Fe.
Flower and fruit management. The low temperature and short sunshine after entering the late autumn are conducive to flower bud differentiation. The quality and quantity of flower bud differentiation is the basis for the next year's high yield of strawberries. If the seedlings grow strong, they can be treated with roots to avoid prolonged growth. After the bud, it can be sprayed with 3 grams of water to 30-45 kilograms of water, which can promote uniform flowering, uniform fruit size, and promote early maturity, improve quality and improve sugar content. On December 15th, 2008, the sweet Charlie fruit of Bihu was sprayed in the Green Forest Technology Demonstration Park of Lixinzhuang Village, Shandong Town, Pinggu, Pinggu, Beijing. The first time the fruit was neat, the second ear fruit began to bud, and the fruit was large. The fruit began to be harvested, with a single fruit weight of 40-50 grams and a sugar content of 11%. The fruit that was not sprayed with Bibao was not neatly arranged for the first time. The individual fruit just started to mature, 35-40 grams in a single fruit, and the sugar content was 8%.
Pest Control. Due to high temperature and high humidity in the greenhouse, there are often gray mold, powdery mildew, leaf spot and verticillium. When the disease occurs, use 15000 times plus 10% Shigao or 50% Suikeling. Bibao 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 10% imidacloprid and 2% avermectin spray can be prevented. Dosing is prohibited 20 days before harvest.
Fertilizer use management. Strawberry cultivation has a long growing time after planting. Before planting, the former fruit growers often apply a large amount of farmyard manure, sometimes it is an unfertilized farmyard manure, often accompanied by diseases and nematodes. It can be combined with some ammonium bicarbonate to reduce the occurrence of pests and diseases. If there is a fat burning phenomenon after planting, it can be used to promote the recovery of seedlings by spraying 5000 times with amino acid fertilizer. Before the flowering in winter, due to the low temperature, it is not conducive to the abnormality of pollination and solidification. At this time, the use of Bi-protection 5000-7500 times with boron leaf spray can reduce the occurrence of deformed fruit. In addition, due to nutrient imbalance caused by yellowing of the leaves or dry burning, etc., you can use the 7500 times leaf spray or 20000 times of roots to promote root development and alleviate the symptoms of deficiency.
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