After the autumn, the vines are removed from the diseased body, and the cleared diseased bodies are burned out. After the clearing of the garden, the generals are sprayed with the stone sulphur mixture or Bordeaux mixture or biological fungicide for better effect. Other plant crops can also be spray sterilized. In the autumn, the soil is sprayed 50 to 100 times before the spring and after the spring is unearthed . In the growing season, the diseased leaves, diseased fruits, and diseased vines are removed in time, and they are deeply buried.
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Discharge and loosen the soil in time after rain; timely tying the vines, picking the heart, keeping the ventilation and light transmission inside the rack; increasing the application of potassium, calcium and trace elements, enhancing the tree potential, improving disease resistance; controlling yield and reasonable burden.
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Source: China Agricultural Promotion Network
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Overhead sectional door most widely used for loading areas on all types of industrial premises and Designed with a curved overhead track, these vertically-opening sectional doors can be installed in areas with reduced head room. They provide heat and sound insulation with its composite panel construction.
The counterbalance and cable system provides quiet and straight forward operation for manual doors. Electric operation is available for larger applications that can incorporate many alternative operator options to suit all client requirements.
The standard outer panels are manufactured from 0.5mm thick, high quality zinc coating to BS EN 10147
For the best weather protection the sectional door panel has an interlocking hinged joint integrating a high quality seal the full length of the panel.
A counterbalance system is incorporated into the sectional overhead door to ensure efficient and effortless operation.
The counterbalance comprises of springs mounted on a steel shaft that are high tensile helical wound steel. It has been heat treated for enhanced performance for around 50,000 cycles.
Reducing shaft friction is achieved with the aid of brackets and guide rollers incorporating highest quality sealed bearings.
Overhead Sectional Door,Overhead Sectional Garage Door,Automatic Overhead Sectional Door, Overhead Insulated Garage Door
Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.highspeedshutterdoor.com