Strengthening the management of strawberries in the spring will make strawberries grow well, produce early results, and have excellent quality. This is the key to winning high yields. We should focus on the following measures:
1. Timely removal of membranes and hardening of seedlings As temperatures rise, it is necessary to gradually remove the overwintering cover. When the average temperature on the day stabilized at around 10°C, it began to be removed. Before removing the coverings, 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 and development.
2. After cultivating loose soil in the cultivator, timely tillage and soil weeding shall be used to promote growth and remove grass damage. The cultivator should be shallow and avoid injuring too many roots and clods. At the same time, cultivator should be combined with cultivars to prevent waterlogging and reduce soil moisture to ensure normal growth.
3. After cutting off the old leaf strawberries, the dry old leaves and diseased leaves must be cut off in time to improve the ventilation and light transmission between the plants and reduce the humidity in the field. The cut leaves must be taken out of the field and destroyed. To reduce the incidence of infection to prevent the disease.
4. Timely top dressing After a winter dormancy, the temperature gradually increases in the spring as the temperature rises. In order to increase the number of effective flowers and increase the fruit setting rate, it is necessary to timely apply the tree-fertilizer and the pre-flowering fertilizer. Since strawberry roots are relatively shallow and the response to fertilizers is more sensitive, it is not suitable to use fertilizers such as ammonium bicarbonate and ammonium sulfate. Urea should be used. Mainly compound fertilizer. It is advisable to use 10-15 kg of urea or 20-30 kg of compound fertilizer per acre. Before flowering, flowers are applied before flowering in mid-April, and 10 kg of compound fertilizer is used per acre. In addition, 0.2% potassium dihydrogen phosphate solution was sprayed on the leaves for 2-3 times to increase the yield.
5. Rational irrigation of water requires high moisture content, and in wet areas, short-term drought will also result in reduced production. Therefore, in combination with irrigation and drought, the top dressing is usually poured with water once it has budded and the fruits are inflated to maturity. The moisture should be supplied in a timely manner according to the field conditions. Each time the amount of irrigation 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 root system, and the surface humidity is too large, and it is also easy to breed diseases. Especially when the irrigation period is too large or the rainy season is affected, it will reduce the fruit sugar content, and it will be easy to rot. fruit. Therefore, it is necessary to drain water in a timely manner in the flood season and the rainy season to prevent waterlogging.
6. The flowers that bloom on the inflorescence of the sparsely flowering buds have a good result, and the fruits are ripe and mature. Late flowers often do not form fruit and become ineffective flowers. Even if some of them can form fruit, they are too small to be effective. Therefore, after flowering, thin and thin flower buds should be eliminated to reduce the consumption of nutrients, so that the nutrients can be concentrated to supply the buds that are opened first. When the flower buds are separated from one another and are easily removed, 20-25% of the late weak buds are eliminated.
7. Prevention of pests and diseases due to the growth of strawberry plants on the ground, and flowering results for a long period of time, the fruit is easy to contact with the ground, when the humidity in the field, the most vulnerable to disease. Therefore, during the rainy season, we must conscientiously do a good job of cleaning the trenches and spray pesticides. For fungal diseases such as gray mold, leaf spot, verticillium wilt, bud blight, powdery mildew, etc., Bordeaux mixture, green copper, green depot, zein zinc, thiophanate-methyl, anti-mildew Carbendazim and other agents are used for prevention and control, especially after the onset of disease, and the disease is controlled at the initial stage. Viral disease is mainly transmitted by the aphids and it is necessary to pay attention to the prevention and control of aphids. In addition, underground tigers, cockroaches, cockroaches, and other underground pests can be poisoned with a 1000-1500 times solution of phoxim, while red spiders and spiders can be used to prevent and control pesticides. It is forbidden to use chemical pesticides to ensure food safety. (Hubei Dangyang Agricultural 110 Service Center)
1. Timely removal of membranes and hardening of seedlings As temperatures rise, it is necessary to gradually remove the overwintering cover. When the average temperature on the day stabilized at around 10°C, it began to be removed. Before removing the coverings, 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 and development.
2. After cultivating loose soil in the cultivator, timely tillage and soil weeding shall be used to promote growth and remove grass damage. The cultivator should be shallow and avoid injuring too many roots and clods. At the same time, cultivator should be combined with cultivars to prevent waterlogging and reduce soil moisture to ensure normal growth.
3. After cutting off the old leaf strawberries, the dry old leaves and diseased leaves must be cut off in time to improve the ventilation and light transmission between the plants and reduce the humidity in the field. The cut leaves must be taken out of the field and destroyed. To reduce the incidence of infection to prevent the disease.
4. Timely top dressing After a winter dormancy, the temperature gradually increases in the spring as the temperature rises. In order to increase the number of effective flowers and increase the fruit setting rate, it is necessary to timely apply the tree-fertilizer and the pre-flowering fertilizer. Since strawberry roots are relatively shallow and the response to fertilizers is more sensitive, it is not suitable to use fertilizers such as ammonium bicarbonate and ammonium sulfate. Urea should be used. Mainly compound fertilizer. It is advisable to use 10-15 kg of urea or 20-30 kg of compound fertilizer per acre. Before flowering, flowers are applied before flowering in mid-April, and 10 kg of compound fertilizer is used per acre. In addition, 0.2% potassium dihydrogen phosphate solution was sprayed on the leaves for 2-3 times to increase the yield.
5. Rational irrigation of water requires high moisture content, and in wet areas, short-term drought will also result in reduced production. Therefore, in combination with irrigation and drought, the top dressing is usually poured with water once it has budded and the fruits are inflated to maturity. The moisture should be supplied in a timely manner according to the field conditions. Each time the amount of irrigation 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 root system, and the surface humidity is too large, and it is also easy to breed diseases. Especially when the irrigation period is too large or the rainy season is affected, it will reduce the fruit sugar content, and it will be easy to rot. fruit. Therefore, it is necessary to drain water in a timely manner in the flood season and the rainy season to prevent waterlogging.
6. The flowers that bloom on the inflorescence of the sparsely flowering buds have a good result, and the fruits are ripe and mature. Late flowers often do not form fruit and become ineffective flowers. Even if some of them can form fruit, they are too small to be effective. Therefore, after flowering, thin and thin flower buds should be eliminated to reduce the consumption of nutrients, so that the nutrients can be concentrated to supply the buds that are opened first. When the flower buds are separated from one another and are easily removed, 20-25% of the late weak buds are eliminated.
7. Prevention of pests and diseases due to the growth of strawberry plants on the ground, and flowering results for a long period of time, the fruit is easy to contact with the ground, when the humidity in the field, the most vulnerable to disease. Therefore, during the rainy season, we must conscientiously do a good job of cleaning the trenches and spray pesticides. For fungal diseases such as gray mold, leaf spot, verticillium wilt, bud blight, powdery mildew, etc., Bordeaux mixture, green copper, green depot, zein zinc, thiophanate-methyl, anti-mildew Carbendazim and other agents are used for prevention and control, especially after the onset of disease, and the disease is controlled at the initial stage. Viral disease is mainly transmitted by the aphids and it is necessary to pay attention to the prevention and control of aphids. In addition, underground tigers, cockroaches, cockroaches, and other underground pests can be poisoned with a 1000-1500 times solution of phoxim, while red spiders and spiders can be used to prevent and control pesticides. It is forbidden to use chemical pesticides to ensure food safety. (Hubei Dangyang Agricultural 110 Service Center)