1, select the appropriate cultivar

Because the growth of strawberries requires cold weather, and it must be dormant under certain conditions (low temperature and short days) in order to enhance its resistance to low temperatures. However, once the strawberry enters dormancy, it must give a certain amount of low temperature to release the strawberry from physiological dormancy. After the dormancy is released, a new growth cycle can be started. Therefore, the strawberry planted in the South should be selected as a light-sleeping, low-calorie variety.

2, choose healthy seedlings

In open field cultivation, new stems should be selected to be thick, and there are 4 seedlings with shorter petioles, full head buds, more than 1.2 cm thick rhizomes and more than 5-6 roots. This seedling has a large amount of growth during the vegetative growth period, and can form sufficient photo-contracted products to support the development of flower organs, enabling the growth of female styles, high male pollen germination rate, successful completion of pollination and fertilization, improvement of fruit setting rate, and high probability of seed formation. And reduce the deformed fruit, increase the value of fruit products.

3, in the main cultivars configuration pollination varieties

Because, although most strawberry varieties have self-bunch strength, self-bearing fruit has a smaller size, lower quality, and lower yield. Therefore, after determining according to market needs, suitable conditions for local planting are the main varieties, Selection of pollinated varieties should be considered for cultivation. The cultivated area of ​​the main cultivated varieties and pollination varieties should be arranged according to the ratio of 7:3. For the convenience of management, the same variety should be planted in a centralized manner, but the distance between the pollination variety and the main cultivated variety should not exceed 25 meters. The ripening period of pollination varieties should be staggered with the mature period of the main cultivars, in order to relieve the pressure of over-concentration of harvest peaks and prolong the supply period of fresh fruits.

4, grasp the appropriate planting

The planting period should be based on different regions and different conditions. Strawberry planting can be divided into spring planting and autumn planting. The suitable temperature for strawberry planting is generally 15-20°C, and the soil temperature is 15-17°C. The general autumn planting season in Guangdong is from late October to early November, but it should not be too late. If the ground temperature drops below 15°C, It's hard to make new shoots.

5. Scientific management of soil fertilizer

Strawberries are suitable for growth in neutral or slightly acidic soils and require a pH of 5.8-7. If the PH value is below 4 or 8 or above, the growth is poor and the soil is rich in organic matter. If the organic matter content is below 1%, the plant growth is weak, the yield is low, and the quality is poor. In order to achieve high yield and high quality of strawberries, basal fertilizer based on organic fertilizer should be applied to the soil. In general, it needs to apply 1200 kg of chicken manure, 6.5 kg of urea, 50 kg of superphosphate, 8 kg of potassium sulfate, or about 50 kg of nitrogen, phosphorus and potassium three-element compound fertilizer. Deep plowing is then performed, typically at a depth of 30-40 cm to promote soil ripening. Improve soil permeability and retain water and fertility. And to keep the water level below 80 cm. Because strawberry is a shallow-rooted herb, it is sensitive to the oxygen content in the soil. Therefore, after the strawberry is planted, it usually takes about 7-9 cultivations per year, and the cultivating depth is generally 3-4 cm. Try to make the soil not compact. , Loose, no weeds.

6, a reasonable fertilizer management

The first topdressing for growing strawberries should be about 10-15 kilograms of ternary compound fertilizer per mu after transplanting seedlings. The second time in the new leaf germination to budding stage, apply about 10-15 kilograms of ternary compound fertilizer per acre and add 13 kilograms of potassium sulfate or 75-100 kilograms of ash. The third top-dressing in the early flowering period can refer to the previous amount of fertilizer. The fourth time after applying fruit dressing, it is the nutritional consumption caused by the plants to make up for the results, and promotes the extraction of the Portuguese pupa. The application of urea is 5 kg per acre. For strawberry water management, strawberry roots are shallow, there are many leaves, water transpiration is large, drought tolerance is poor. Therefore, the requirements for moisture are high, and it is necessary to meet the requirements of its growth to moisture, but not excessive, and to keep the soil moist.

7, scientific prevention of pests and diseases

Because pests and diseases occur in different regions and under different conditions, different pests and diseases occur. However, before transplanting, the control of underground pests (food roots) cannot be ignored. Root pests include earthworms, earthworms, and ground tigers. After transplanting, use 20% of the enemy's enemy 800 times or 50% of the phosphorus octoate to settle the root 1000 times, and use 70% of thiophanate-methyl 800 times or 50% of carbendazim 500 times to spray the leaves alternately. Spray once every 7 days, even spray 2-3 times, in order to reduce the occurrence of pests and diseases in the growing season.

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Medical blister is divided into three categories according to the safety of its use: the first category refers to medical devices that are safe and effective enough to be guaranteed through routine management. The second category refers to the medical devices that should be controlled for their safety and effectiveness. The third category is implants to sustain life; Potentially dangerous to the human body, its safety, effectiveness must be strictly controlled medical devices.

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