"One night" is a late planting period, and pushing the potato's normal sowing date 10-15 days later will avoid the effect of the unfavorable conditions of high temperature during summer potato tuber expansion.
"Four Deep" Precision Farming Management:
Deep plowing. Deep plowing in autumn, increase the living soil layer, store water and fertilizer. The general depth of 30 cm, not only to accept autumn and winter rain, spring sowing drought seedlings, autumn rain spring, and deep cultivation on the virtual reality, fertilizer and water sufficient for the potato root growth and tuber enlargement to create a good environment.
Deepcast. Adopting appropriate deep seeds not only increases the level of tuber and tuber, but also promotes the development of plant roots to deeper layers, more water absorption, and more absorption of fertilizers. It also improves the utilization of soil water and fertilizer by potatoes, and increases drought resistance.
Deep fertilization. The amount of fertilizer applied was in accordance with the predetermined yield. Fertilizer was mainly organic fertilizer and supplemented by chemical fertilizer. Base fertilizer accounted for 70% and top dressing accounted for 30%. Base fertilizer should be applied deep, and ammonium bicarbonate should be used in particular. The effect of deep production increase was more obvious. Up to
30%-50%.
Deep cultivator. Potatoes are tuber crops. Not only do they require soil loosening, but they also require soil storage, fertilizer storage, and good air permeability. Only in a good environment with water, fertilizer, and gas, can the characteristics of tuber enlargement be sufficient. Play, deep cultivator, and high-cultivation soil can also promote the good development of the root system and promote the decomposition of organic matter in the soil by microorganisms.
Desktop Type Dental Milling Machine
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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