Good soil can produce good crops and produce good fruits so that farmers can survive for generations. Therefore, it can be said that soil is the root of farmers and it is closely related to human survival. In actual production, we know that only scientific and reasonable fertilization can properly preserve the soil. Therefore, in order to guide agricultural scientific fertilization, more and more modern agricultural parks begin to use the instrument to measure soil. And through soil testing and formula fertilization to achieve improved soil cost efficiency.
In the management of mango orchards, fertilization is the most important and the most tedious job. In general, only by clearly understanding the soil environment can we better manage crop growth and development, produce high-quality mangoes, and produce high-quality mangoes. product. Therefore, the use of a soil tester for soil nutrient determination in mango orchards and the implementation of soil testing and formula fertilization is an important part of the modern orchard development of ecological orchards, and is also an important measure to reduce costs and increase the output and quality of mango orchards. The advantages of using a soil tester in a mango plant are as follows.
1. Understanding the soil quality Soil testing instrument for soil nutrient determination can help farmers choose soils with high water and fertility to grow crops and reduce the loss of human and material resources. Can better improve soil fertility and promote the growth and development of mangoes.
2. Reveal the eco-environmental characteristics of mango orchard soil. Soil environment is an important factor affecting the quality of mangoes. If improper fertilization is likely to cause soil diseases, etc., the eco-environmental characteristics of mango orchard soil are revealed by the soil tester. Helps managers improve soil quality and cultivate a healthy and fertile soil environment.
3, to carry out the correct fertilization operations The important role of the soil tester is to achieve soil testing and formula fertilization by soil testing. Generally speaking, the nutrients required in different stages of mango are different, such as mango control period, the need for phosphorus Potash fertilizers; Boron fertilizer is indispensable for flowering to young fruit. The soil tester can be combined with the growth characteristics of mango, according to the results of the formulation of a scientific fertilization program, so that lack of wolfberry to make up, improve the effect of orchard fertilization.
4. Provide scientific basis for the green production of mango. Soil testing and formula fertilization based on the data of soil testing instrument can scientifically and reasonably apply fertilizer, combine organic fertilizer and chemical fertilizer, appropriately reduce the use of chemical fertilizer, and reduce environmental pollution. Green environmental protection provides scientific basis.
Matters concerning the export of Graphite
Over the years, China has been the most * big exporter of Natural Graphite products, in deep processing of graphite products technology leading developed countries, is against the natural graphite "with purchase and adopt a generation of" strategy, and technology blockade, natural graphite as a kind of non-renewable resources, with very good foreground countries limit zhi, its export of primary products, such as export carbon rods, artificial graphite, Graphite Block, pre-baked anode, etc., need to be dealt with the dual-use items.
The price of natural Graphite Powder is determined by three main factors: carbon content, moisture and particle size distribution.
1. The higher the carbon content, the greater the purity of graphite, so the price will rise in the form of the acceleration line (i.e., the higher the purity, the more complex the production process, and the higher the price increases).
The larger the scale, the lower the natural content and the higher the price. Conversely, the smaller the particulate matter, the less content in nature and the higher the price. Therefore, for natural graphite, the price of the normal (i.e., the material at the top of the sieve) is high. In the positive eye, the smaller the number, the bigger the scale and the higher the price. In negative eyes, the larger the number, the smaller the scales, the higher the price, the lower the price of negative items.
Artificial graphite HS codes for 3801100090, customs supervision conditions for export license of dual-use items and technologies, when customs clearance in addition to submit normal trade documents, and shall be submitted to the ministry of commerce issued "export license of dual-use items and technologies".
Materials for application of electronic key for dual-use items:
1. Application of electronic key for approval and approval (seal of enterprise official seal and approval seal)
2. Copy of business license (seal of enterprise)
3. Photocopy of the record registration form of foreign trade operator or a copy of the approval certificate of the foreign-invested enterprise (with the official seal of the enterprise)
4. Applicant's identity card and copy of the company's legal person identity card (seal enterprise seal)
5. Service contract (please refer to the representative office or office)
6. Copy of bank payment receipt (wire transfer voucher, bill)
Information on import and export of dual-use items
1. Trade contract
2. Export (import) packing list
3. Certificate of final user and end-use abroad
Application for export license of sensitive items and technologies of the People's Republic of China, etc.
Graphite Export Packing,Graphite Packaging,Graphite Block Packaging,Graphite Powder Packaging
Fengcheng Ruixing Carbon Products Co., Ltd , https://www.lnfcrxts.com