Mix ammonium bicarbonate with farmyard manure. When planting potatoes and sweet potatoes, mix 20-25 kg of ammonium bicarbonate per mu with farmyard manure and apply them to the cultivated ridges to drive and kill the mites that are harmful to the seedlings. Before planting seedlings such as amaranth, garlic, cowpea, cucumber, etc., use 25-30 kg of ammonium bicarbonate per mu and mix well with farmyard manure to kill roots and small tigers, and reduce or avoid the damage of these underground pests.
Dilute ammonium bicarbonate and spray it on the foliage of the crop. When melons and fruit vegetables are mites, the ammonium bicarbonate is diluted 80-100 times, and evenly sprayed on the stems and leaves of these crops with a sprayer to kill the mites and reduce fungi and bacteria such as blight, verticillium, and viral diseases. And viral diseases.
The pesticide is prepared by using ammonium carbonate and copper sulfate as raw materials. 4 kg of ammonium bicarbonate and 0.5 kg of copper sulfate (grind into powder), mix well and add 1 kg of lime immediately, mix and put in a glass container or airtight nylon bag for 24 hours to make "copper ammonium powder". . When used, the copper ammonium powder is diluted to a "copper ammonium mixture" by adding 1200-1500 times of copper content. Spraying vegetables and cotton not only can prevent fungal and bacterial diseases, but also has the effect of topdressing.
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.hfhighspeeddoor.com