First, choose the land to choose deep, loose and fertile, easy to irrigate sandy land for planting, avoid continuous cropping.
Globe Valves and angle valves are designed for throttling or regulating flow in commercial and industrial applications. Bronze, cast iron, or cast ductile iron materials. Threaded, flanged, or solder end connections.
Angle valves for use in commercial and industrial applications. Typical services include hot and cold water, HVAC, steam, compressed air, gas and other general utility services. Angle Valves, Angle Globe Valves, Brass Angle Valve, Zinc Angle Valve ZHEJIANG KINGSIR VALVE CO., LTD. , https://www.kingsir-valves.com
2. Before planting the soil and applying the base fertilizer, 1000-1500 kg of farmyard manure, 50 kg of calcium magnesium phosphate fertilizer and 20 kg of compound fertilizer should be used as the base fertilizer. Divide the trenches, each 1 m wide, 20 cm high, and open the seeding ditch across the surface.
3. Ginger treatment and sowing Before planting, the ginger seeds are placed in the sun for 2 days, then disinfected with 2% formalin for 6-8 hours (note that they should be washed with water after disinfection), or with agricultural chains. Soaking seeds for 6-7 hours. The sowing time is from early March to mid-April. The planting specifications are generally 0.25 m × 0.4 m, and 3,500-4,000 gingers are planted per mu.
Fourth, field management 1, timely topdressing. In the seedling stage, the topdressing is mainly light and light fertilizer; afterwards, the topdressing is repeated twice, the first time is from early June to early July. At this time, it is the long-term of Sun Jiangwang, which is the peak period of ginger absorption. Fertilizer 20 kg, urea 10 kg; the second is in early September to early October, this time is the rapid expansion of ginger tubers, 30 kg of compound fertilizer and 10 kg of potassium chloride.
2. Appropriate shading coverage. In summer, the temperature is high and the sun is strong. It is extremely unfavorable for ginger and summer. It is necessary to cover the shade. Crops or shelter shades such as corn (2314, -9.00, -0.39%), soybean (4557, 1.00, 0.02%) can be interspersed between the sides. At the same time, the straw is covered between the ginger lines to reduce ground radiation and increase soil moisture.
3. Water management. Ginger must keep the soil moist during the whole growth period. When it is dry, it is required to fill the “horse waterâ€.
V. Pest Control (1) Prevention and Control of Ginger: Use seedless ginger before planting to prepare ginger for disinfection. In the early stage of the disease, spray the agricultural streptomycin or chlorophyll or Bordeaux mixture, spray once every 15 days, a total of 3-4 times. The seriously ill strain should be excavated and burned in time, and disinfected with lime in the ginger hole.
(2) Prevention and treatment of anthrax: In the early stage of the occurrence, it was controlled with methyl thiophanate + carbendazim.
(3) Prevention and control of strips: use of trichlorfon + insecticide in the occurrence period.
Vacuum angle valve is used for turn on or shut off the airflow in the vacuum pipeline, the applicable media is air and non-corrosive gases.
It has two structures, one is angle type and another is a 3-way type within an ISO-KF or ISO-F various flange end pre-pump port.
a) Small diameter (≤DN50) valve body are precision investment casting.
b) Large diameter (> DN50) valve body are molding shaped seamless steel or steel plate.
c) Bellows sealed structure can withstand 150ºCtemperature, metal sealed structure can withstand 450ºCtemperature.
d) Can install on any position to control the airflow in the vacuum pipeline, as an on-off valve purpose
Technical points for making ginger high quality and high yield
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