Choose strong seedlings Choose good varieties of disease-free seedlings with strong growth and many fibrous roots. Generally, the seedlings must have at least 4 leaves and a stem thickness of about 1 cm. If the seedlings are purchased from a remote place, the large leaves on the periphery of the plant should be cut off during cultivation, leaving only 2 to 3 small leaves in the middle, which can reduce leaf water evaporation and improve its survival rate.
Land preparation and fertilization should be carried out about 15 days before strawberry planting. The soil preparation should be carried out by 30-40 cm deep, combined with the plowing and applying 4000 kg of high-quality farm manure per acre, 15 kg of diammonium phosphate, and 10 kg of potassium sulfate. Rake leveling to make a foundation for making borders or ridges. When making a border, the border is 10-20 meters long, 60-70 cm wide, and 10 cm high; when ridged, the ridge width is 50-55 cm, the ridge height is 15 cm, and the ridge width is 20 cm.
Planting time The most suitable temperature for strawberry planting is 15℃～23℃. It should not be planted too early or too late. The soil temperature for planting too early will affect rooting and the survival rate will be low. The test proved that the temperature is around 15℃, and the survival rate is 95%; the seedlings are too small before the winter is planted, and the accumulated nutrients are too little, which will affect the yield in the second year.
Planting method The planting direction should pay attention to the arch of the seedlings facing the side of the channel, so that the inflorescences are in the same position, which is not only good for ventilation and light, but also convenient for agricultural operation and management. The planting depth is the key to the survival of transplanting. The planting depth cannot be too deep or too shallow. If the planting depth is too deep, the seedling core will be buried, which will easily cause rotten and dead seedlings; if the planting depth is too shallow, the rhizomes will be exposed, which will easily cause strawberry seedlings. With dryness and death, the most suitable transplanting depth is "don't bury the heart deeply, and don't expose the roots shallowly".
Post-planting management In order to make the seedlings grow well after planting, and promote the formation of flower buds, one must remove the aging leaves and stolons on the plant in time; the other is to apply nitrogen fertilizer once in late September, and 15 kg of ammonium nitrate per mu can be applied. Phosphate fertilizers can also be applied; thirdly, it is necessary to irrigate in a timely manner. After each irrigation, cultivating is necessary to keep the soil loose and increase the ground temperature, which is conducive to the rooting of the seedlings.
Prevention of diseases and pests During the growth and development of strawberries, gray mold, powdery mildew, leaf spot, and damage from red spiders often occur. For the prevention and control of gray mold, 0.3% lime-sulfur mixture can generally be sprayed at the initial stage of the disease; when powdery mildew and leaf spot disease are prevented, 800 times solution of dystrogen or 800~1000 times solution of thiophanate methyl can be sprayed; red spiders occur When it is harmful, spray 40% dimethoate 1200 times liquid for prevention.
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 Injection Device
Syringes can also call Disposable Medical Supplies, Disposable Syringe With Needle and Plastic Needle Tube such as some scientific instruments in chromatography to inject through the rubber septum. Injecting gas into a blood vessel will cause an air embolism. The way to remove air from the syringe to avoid embolism is to turn the syringe upside down, tap it lightly, and squeeze out a little bit of fluid before injecting into the bloodstream.
In some cases where accuracy is not the primary concern of germs, such as quantitative chemical analysis, glass syringes are still used due to the small error of the glass syringe and the smooth movement of the push rod.
You can also inject some of the juices into meat with a syringe to improve taste and texture while cooking, or into pastries when baking. Syringes can also fill ink cartridges with ink.
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