Appropriate seedlings are planted with new seeds before and after the autumnal equinox sowing, with 3 kg per acre, 8 to 10 acres can be planted.
Seedling management before the winter to control the water and fertilizer, to prevent the seedlings is too large or leggy, and strictly control the pre-winter seedlings no more than 3 leaves, plant height of 10 cm is appropriate. When the soil begins to freeze, pour enough frozen water and return it to green water. From returning green to planting, fertilize 2 to 3 times with water, applying high nitrogen fertilization (24~6~14) 16 kg per acre. Watering was stopped 10 days before planting, and seedlings were planted to facilitate seedlings. Watering was conducted the day before planting to facilitate seedling raising.
Timely planting of green onions is a very frightful way of continuation, and the masses have to say “hot-to-hot, must-have, and green-on-your garlic not to meet†and so on. Mushi rotted 5000 kg of organic fertilizer and 50 kg of superphosphate in the growing season. After centralized fertilization in the ditch, the ditch will be loosely planed and planted at a spacing of 6 cm.
Field management entered the summer season after the colonization and timely injection of new high-fat membranes to shorten the seedling period so that the seedlings thrive. If the weather is not very dry, it is generally not appropriate to re-water, and cultivators should be strengthened to promote root growth. In case of heavy rain, pay attention to drainage and prevent onions and gutters from collecting water. After the beginning of autumn, the onion demand for water and fertilizer increased, combined with high nitrogen fertilization and irrigation (24~6~14) 16 kg per acre. When the heat is applied, the combination of watering and high-nitrogen fertilization (24~6~14) of 16 kilograms per acre is performed. After the white dew, the green onions began to thrive and needed to combine watering with white dew festivals and autumn seasons and spray once every 10 days to make the stems of the plants strong and natural. At the same time, it can increase the ability to resist disasters, reduce the amount of pesticides and fertilizers, and reduce residual poisons. To meet the need for light green growth.
Timely earth welsh onion period in the whole growth period, respectively, in the beginning of autumn, the summer heat, white dew and autumn sub-cultivation four times, the first and second earth should be shallow; third, four times the earth is thicker, the thickness of each cultivating soil to the top of the blade It is advisable to leave it at the mouth of the leaf. Never leave the growing heart. After the dew had dried in the morning, the soil was cool and the soil was cool.
There is wax powder on the onion leaf surface of the onion pests. In order to improve the adhesion of the chemicals, neutral soap should be added in the liquid medicine, and the application time should be in the morning.
The chair side CAD / CAM repair system has obvious advantages in aesthetic effect, operation time, patient participation and operation convenience. Discussion: traditional repair method: after the model is transferred, it will be sent to the technician's room for processing and making the final prosthesis. About one week, the final prosthesis will be tried on, grinded and bonded. The prosthesis was made in the technician's room. The patients need to accept the aesthetic effect of the prosthesis passively without any sense of participation. The implant repair method of chair side CAD / CAM system: obtain computer three-dimensional model by blue light scanning method, design and make personalized abutment and all ceramic restoration on computer, dye, glaze and bond after trial wearing, the whole restoration is made by chair side, patients can directly participate in the restoration design, and feel more involved. Conclusion: in the implant area of the anterior teeth, compared with the traditional implant repair method, the chair side repair system can get more satisfactory results, which is worthy of clinical application and promotion.
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