Polishing Machine
The abrasive polishing uses abrasive cloth strips, sisal and abrasive rolls as abrasives to sharpen the edge of the workpiece, the surface burrs and the edge of the workpiece after painting; the function is complete, the processing range is wide, mainly used for the door plate and the bottom plate. Paint polishing, including solid wood doors, composite doors, sticker doors, cabinet doors, wardrobe doors, and other door panels, such as PU, paint panels, primer panels, polishing of white workpieces can be used. It can replace the polishing worker to complete the work efficiently.
Main Features
Specification & installation
machine configuration
4 discs, 2 straight rollers, steel plated countertops, plain gauze strips (6 lanes)
Grinding roller support material
New anti-static sisal silk
Abrasive cloth strip: ordinary sand cloth strip (single side)
motor
Pure copper core GB motor
Electrical configuration
Qingdao Hailing Modular Machine Inverter, Chint Contactor, Chint Relay, Delixi Transformer,
Delixi phase sequence protector, LED lighting
We distributes and wholesales various brands of Bonded Abrasives , Abrasive Sanding Disc, Grinding Wheels , Flap Wheels , Flap Disc Backing Pad, Flap Disc Adhesive, and Surface Conditioning Product etc, and enjoy a high position among consumers.
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To achieve this goal, it is necessary to improve fertilization technology, reduce nitrogen loss, increase the recovery rate of nitrogen fertilizer in the current season, and improve the economic benefits of fertilizer application such as nitrogen, phosphorus and potassium. In order to meet the characteristics of high-intensity utilization of farmland in China, there are breakthroughs in basic and applied basic research, innovation in technical research, and lay a solid foundation in monitoring and management of soil fertility and fertilizer benefits. To this end, the following suggestions are proposed: strengthening the basic rules of soil nutrient cycling and the basic application of fertilizers. Different nutrients have their own unique transformation cycles in different soil environments. Different nutrients are in different forms, organic or inorganic. After being applied to farmland, there are laws for their release, transformation, migration, and absorption, utilization, and reuse by crops. On the farmland and regional scales, the cyclical supply of nutrients and the absorption and utilization of crops have specific rules of time and space. These laws will greatly affect the utilization efficiency and loss rate of fertilizers. Therefore, in combination with the specific conditions of various regions in China, carrying out relevant basic and applied basic research is the fundamental need to achieve sustainable soil use and efficient fertilization.
Strengthening soil fertility and monitoring of fertilizer benefits and other basic work Soil fertility is the basis for sustainable agricultural development. Fertilizer benefit is the basis for efficient use of fertilizer resources. To ensure long-term sustainable use of farmland and efficient use of fertilizer resources, it is necessary to Strengthen the construction of national soil fertility monitoring bases and establish national fertilizer benefit test network in the district and main soils, and grasp the soil nutrient and productivity status of the whole country and regions in real time, and grasp the nitrogen, potassium and medium and major crops of the main crops in the country and major agricultural areas in real time. The reaction of elemental fertilizer and the benefit of fertilization increase, and at the same time, through the use of information, database, network technology, etc., gradually establish national and local levels of soil fertility and fertilizer benefit monitoring and management network, and form a national soil and fertilizer information exchange and management system.
Achieving balanced fertilization, cultivating a balanced supply of nutrients, fertile and healthy farmland The key to improving the efficiency of fertilizer use is to ensure a comprehensive and balanced supply of various macro, medium and micro nutrients necessary for crops. Due to the imbalance of fertilization, the degree of non-homogenization of farmland soil nutrients in different regions of China is intensified. In many areas, the application of nitrogen fertilizer is excessive, the benefits are low, the losses are serious, and phosphorus is also accumulated in some areas. Soil potassium and other nutrients exist in many areas. Depletion and lack. Therefore, when formulating a fertilizer management strategy, it must be treated differently for each nutrient abundance in the soil: 1) For the elements lacking in the soil, it should be supplemented to the appropriate level by fertilization to ensure the crop yield increase and fertility. Double target; 2) For the content of suitable elements in the soil, it is necessary to supplement the nutrients taken by the harvested part of the crop to maintain the supply capacity of this nutrient in the soil (the geograrian element); 3) the original reserves in the soil are rich or have The obvious accumulation of elements can be temporarily not fertilized to make full use of soil nutrient resources, or to reduce the amount of fertilization. In this way, through years of scientific fertilization management, we gradually realize the balance and rationality of various nutrients in the soil, and cultivate healthy, fertile and cultivated farmland.
Author: Kim Ji-yun (The author is researcher at the Institute of Chinese Academy of Agricultural Resources and Agricultural Division, International Plant Nutrition Institute China Program Director, China Institute of Plant Nutrition and Fertilizer director, Dr.)
How to improve the efficiency of fertilizer use in China
In recent years, there have been excessive application of nitrogen fertilizers in many areas of China. In some areas, especially in economically developed areas and on high-value crops, excessive application of nitrogen and phosphorus fertilizers is also common, resulting in serious nitrogen loss and partial Phosphorus accumulation in the soil. In addition, the large amount of organic waste is not able to return to the farmland effectively, posing a threat to the environment. However, the country's national conditions have determined that the application of fertilizers in China must meet the goal of sustainable crop growth, continuous increase in farmers' income, continuous improvement of farmland productivity, and continuous improvement of the rural environment.
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