Wheat spring tube has "five fears"

I am afraid of freezing in the early spring. After the wheat enters the greening period, the fertility characteristics change significantly. It has entered the sensitization stage from the temperature sensing stage, and the cold resistance of the wheat seedlings is significantly reduced. Once the cold is encountered, the plants are vulnerable to freezing damage. Preventive measures: 1. Plan. When the soil is re-slurry, the topping plan can be used to loosen the soil, protect the soil, warm the temperature, and weed the grass to enhance the cold resistance of the wheat seedlings. 2. Repression. In the early spring, the wheat field can be crushed, and the cracks can be crushed to close the cracks, so that the wheat roots are in close contact with the soil, preventing cold air from invading and damaging the wheat seedlings. 3. Fertilize. Wheat fertilization in early spring can make up for winter soil fertility consumption, increase nutrient accumulation, promote the growth of wheat seedlings, and resist or reduce early spring frost damage. 4. Spray. When the wheat is greened to the body, the spraying of 200PPM paclobutrazol solution per acre is 30-40 kg, which can inhibit the growth of wheat seedlings and enhance the cold resistance.

Second, I am afraid of the night cream. Frost in the late spring is often referred to as "late frost." Late frost occurs mostly in the jointing stage of wheat. At this time, the plant grows vigorously, the growth cone is above the surface, and the cold resistance is very weak. Once it suffers from the late frost damage, the light leaves turn yellow and twist, and the serious plants wither and cause the ear. The stamens and the stamens are frozen, the florets are degraded, and the seed setting rate is reduced, which affects the yield. The countermeasures are: 1. Strengthen cultivation management and improve the anti-freezing ability of wheat. 2. Irrigation. At present, the meteorological department has a high accuracy rate for night frost forecasting, and timely irrigation before the frost occurs, which can effectively prevent or mitigate frost damage.

Three are afraid of hail. Disaster relief is a kind of severe weather that is common in late spring and early summer. Before the flowering period of wheat, no matter how much the disaster is suffered, as long as it does not turn over, it can usually be re-scented into ear. Therefore, once suffering from disasters, it is necessary to strengthen management in a timely manner to promote the plant to resume growth as soon as possible to reduce disaster losses.

Four are afraid of hot wind. Dry hot air is a kind of frequent meteorological disaster in the late growth stage of wheat, generally reducing production by 5 to 10%, and in some cases, it can reach more than 20%. Prevention method: 1. Skillfully water the wheat yellow water. 2. Foliar spray fertilizer. 3. Foliar vinegar. 4. Spray triacontanol. 5. Spray oil booster. 6. Spray naphthaleneacetic acid. 7. Spray phenoxyacetic acid.

Five are afraid of heavy rain. After wheat harvesting and threshing, if it is too late to dry and enter the storage, it will encounter rainy weather, which is easy to heat, sprout and mold, causing the so-called "destroyed field". The countermeasures are: 1. Physical preservation method, also known as plastic film sealing preservation method, or simply sealing method. The principle is that after sealing, an oxygen-deficient preservation environment is created by the oxygen consumption of the grains and microorganisms to control the heat, germination and mildew of the wet wheat.

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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

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