The wintering cultivation method of garlic can effectively improve the survival rate and harvesting yield of wintering garlic during the planting period. The garlic planted by this method can be raised from 1.5 to 18,000 per acre to 4.5 to 60,000, which meets the requirements of reasonable close planting. Increased land use rate, stable wintering, no damage to seedlings, after seeding, the seedling rate reached 98%, the yield increased by 40% to 50%, and the trace element content was the same as that of the conventional method. The cultivation of garlic by wintering cultivation method is simple and easy to operate, and the production cost is low. When the garlic is screened, the sandwich small garlic can carry out the production of garlic yellow, further improve the economic benefit of planting, increase the added value of agricultural products, and have a good promotion. value. At the same time, under the premise of pouring the frozen water, the flat temperature and fertilizer is 4~5 cm of the cow dung, and the mulch is covered to keep the soil, filling the cracks and cracks, and the purpose of heat preservation and protection has been achieved. In order to enable garlic to be listed before the Spring Festival, the cold shed can be added to the planted garlic 7 to 10 days after the soil is frozen, so that the garlic is premature and the economic benefits of planting are improved. The specific management methods are as follows:

The garlic clams are watered once every 7 days, and the garlic is stopped 4 days before harvest.

After the garlic is expanded, the garlic is added with 2 to 3 kg of nitrogen fertilizer per acre in 1 to 5 days, and the potassium fertilizer is 2 to 4 kg, and water is poured every 5 to 6 days, and water is stopped 5 to 7 days before harvesting.

After the seedlings, the garlic seedlings were planted with three leaves and then poured once to promote the seedling water, and the cultivating and weeding, the soil was poured over the winter water before freezing, and the temperature and fertilizer were 9 cubic meters per mu, the average thickness was 5 cm, and the compaction was covered with plastic film. Filling the cracks and cracks has reached the goal of heat preservation and protection.

During the differentiation period of the flower buds of garlic flower buds, the spring air gradually warms up, uncovering the film and pouring it back into the green water once, and applying 3 to 4 kg of nitrogen fertilizer per mu.

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DUPLEX STAINLESS STEEL

Duplex Stainless Steels Available

Yuhong Group supplies LDX2101, 2205, Ferralium 255, Zeron 100 and LDX2507 in the form of plate, sheet, strip, bar, pipe, tubing, pipe fittings, flanges and weld wire.

Duplex Stainless Steel Overview

Duplex Stainless Steels, also referred to as austenitic-ferritic stainless steels, are a family of grades with about equal proportions of ferrite and austenite. These steels have a duplex microstructure which contributes to their high strength and high resistance to stress corrosion cracking. Due to their high content of chromium, nitrogen and molybdenum, duplex steels offer good resistance to local and uniform corrosion. Duplex stainless steels have good weldability.

Today, modern duplex stainless steels can be divided into three groups:
Lean Duplex such as LDX2101
Standard Duplex such as 2205, the work-horse grade accounting for more than 80% of duplex usage
Super Duplex such as Ferralium 255 and Zeron 100 and LDX2507

Of the duplex grades, duplex 2205 is the most widely used. However, the super duplex steels like ZeronÂ® 100 and LDX2507 are excellent for servicing severe corrosive environments, such as offshore and marine applications. Lean duplex 2101 is available as an economic alternative to 300 series stainless steels.

What are the Characteristics of Duplex Stainless Steels ?
Very good resistance to uniform corrosion
Very good resistance to pitting and crevice corrosion
High resistance to stress corrosion cracking and corrosion fatigue
High mechanical strength
Good sulfide stress corrosion resistance
Good abrasion and erosion resistance
Good fatigue resistance high energy absorption
Low thermal expansion
Good weldability

In what Applications are Duplex Stainless SteelsÂ® used ?
Oil and gas equipment
Offshore technology
Seawater desalination plants
Chemical industry, especially when handling chlorides
Flue-gas cleaning
Desalination plants and seawater systems
Pulp and paper industry
Cargo tanks and pipe systems in chemical tankers
Firewalls and blast walls on offshore platforms
Bridges
Storage tanks
Pressure vessels, reactor tanks, and heat exchangers
Rotors, impellers and shafts

Super Duplex Steel Tube

Super Duplex Steel Tube,Super Duplex Stainless Steel Tube,304 Super Duplex Steel Tube

YUHONG GROUP CO.,LIMITED , https://www.jessro-pipefittings.com