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Strawberry High Yield Management
Strengthening the management of strawberries in spring will make strawberries grow well, produce early results, and have excellent quality. It is the key to seize high yields. The main measures are: 1 With the increase of temperature, the coverings for overwintering and wintering are gradually removed. When the average temperature on the day stabilizes around 10 °C, the removal begins. Before removing the cover, it is necessary to do a good job of refining the seedlings so that they can gradually adapt to the external environment, so as to avoid sudden changes in the ambient temperature, so that the temperature difference is too large, affecting the normal growth of strawberries. 2 The cultivator loose soil should be timely cultivating loose soil and weeding in the spring to promote the growth of the strawberry and eliminate the weed. The cultivator should be shallow, to avoid injuring too much roots and soil pressure. At the same time, the cultivator should be combined with the Qinggu River to prevent waterlogging and reduce soil moisture, ensuring the normal growth of strawberries. After cutting off the old leaf strawberry, it is necessary to promptly cut away old dry leaves and diseased leaves in order to improve the ventilation and light transmission performance between plants and reduce the humidity in the field. Cut off the leaves to bring out of the field and concentrate on stacking and fattening, in order to reduce the source of the disease and prevent the incidence of infection. 3 Timely topdressing strawberries After a winter dormancy, in the spring, as the temperature rises, it gradually accelerates the growth. In order to increase the effective flower number and increase the fruit setting rate, it is necessary to timely reap the development of the tree-fertilizer and the pre-flowering fertilizer. Due to the shallow root system of strawberry, it is sensitive to the response of fertilizers. It is not suitable to use fertilizers such as ammonium bicarbonate and ammonium sulfate. Urea and compound fertilizer should be the mainstay. Fat tree fertilizer with urea 10 - 15 kg per mu or compound fertilizer 20 - 30 kg is appropriate; before flowering in early April before flowering in the middle of April, with 10 kg of compound fertilizer per acre. In addition, 0.2% potassium dihydrogen phosphate solution was sprayed on the foliage for 2 times during the fruiting period of the flowering period, and the yield increase effect was good. 4 Rational irrigation of water requires high moisture content, and in humid areas, short-term drought will also result in reduced production. Therefore, it is necessary to combine irrigation with drought while applying fertilizer. Generally, it is poured once before budding, and the fruits are enlarged and matured. Moisture should be supplied in time according to field conditions. Every time the amount of water should be appropriate, must not flood irrigation. When there is too much soil moisture, poor ventilation will directly affect the growth and development of the roots, and the surface humidity is too large, it is also easy to breed diseases, especially when the irrigation period is too large or the rainy season is stained, it will reduce the fruit sugar content and it is easy to cause rot. . Therefore, it is necessary to drain water in a timely manner during the flood season and the rainy season to prevent waterlogging. 5 Flowering buds The flowers on the inflorescences of the bud are in good condition. The fruits are large and mature. The late flowers often do not form fruits and become ineffective. Even if some of them can form fruits, they are too small and have no effect. Therefore, after budding, the buds need to be thinned out to reduce the consumption of nutrients, so that the nutrients can be supplied to the buds that are first opened, and the fruits can be large, orderly, mature, and of good quality. When the flower buds are generally separated from one another and are easily removed, 20% - 25% of the late weak buds are neglected. 6 Prevention and control of pests Due to the growth of strawberry plants on the ground, the flowering results are long and the fruits are easy to contact with the ground. When the humidity is high in the field, they are most susceptible to diseases. Therefore, during the rainy season, it is necessary to do a good job of draining the trenches and spraying pesticides in time. For fungal diseases such as gray mold, leaf spot, verticillium wilt, bud blight, powdery mildew and other fungal diseases, Bordeaux mixture, green copper, green decoction, zein zinc, thiophanate-methyl, anti-mildew The carbendazim and other agents are sprayed and sprayed, especially after the onset of disease, and the disease should be controlled at the initial stage. Viral disease is mainly transmitted by aphids and it is important to prevent and control aphids. In addition, underground tigers, cockroaches, cockroaches, and other underground pests can be poisoned with a 1000-1500x solution of phoxim, while red spiders can be sprayed with agents such as chlorpheniramine and chlorpheniramine. Attention should be paid to fruit ripening. It is forbidden to use chemical pesticides to ensure food safety.