1 Fertilization on the whole land, timely sowing: the early spring dwarf varieties should be selected from the early spring, such as Zaofeng, Shaqsha, and Black Flange. After the selected disinfection treatment, live broadcast is used, and no soaking is used as much as possible. Taking autumn land and autumn land can improve soil physical and chemical properties, increase ground temperature, promote root and root nodule growth and development, and reduce pests and diseases. When applying the base fertilizer in the depression, it can also be applied before the sowing. The high-quality decomposed organic fertilizer per hectare is 50,000 to 75,000 kg, and the nitrogen, phosphorus, potassium, boron and molybdenum compound fertilizer is 450 kg. The biological nitrogen-fixing fertilizer is fertilized according to the instructions for use. Deep tillage and flattening for squatting or ridges. Available 15 mg / ha of trichlorfon powder , sprinkled in the seeding ditch before sowing.
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2 skill application of top dressing: When the two cotyledons are unfolded, the seedlings should be inspected in time. The seedlings, diseased seedlings and weak seedlings with unsound basal leaves should be removed, and the seedlings should be replanted in time with nutrients. In the seedling stage, the cultivating soil was combined with cultivating soil for 1 time, and the application of nitrogen, phosphorus and potassium compound fertilizer was 75 kg / ha. After topdressing, cover the soil with water. The vine growing period is still dominated by vegetative growth. Combined with watering, the manure urine is 22,500 kg / ha, and the phosphorus and potassium compound fertilizer is 150 kg / ha, which can promote the growth of stems and leaves and lay the foundation for flowering and pod formation. Flowering and pod-forming stage is the key period of fertilizer and water management. The absorption of nutrients such as NPK, calcium and calcium increases with the growth of plant growth rate, which is the peak of fertilizer requirement and timely fertilizer application, which can promote the rapid growth of fruit pods. Topdressing maturity Xifen 75,000 kg / ha approximately, simultaneously with phosphorus, potassium, boron, molybdenum fertilizer 225 to 300 kg / ha, continuous dressing 2 to 3 times, at intervals of 10 to 15 days.
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Pipe nipples are used to allow plumbing to be connected to a water heater or other plumbing. They are used to fit straight end hose or pipe. A combination of pipe nipples are recommended for low-pressure discharge and suction service for various compatible liquids and not for compressible products like air, nitrogen or steam.
Stainless Steel: ASTM A 403
Grade: WPS/WPW 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347HCarbon Steel: ASTM A 234
Grade: WPB/WPBW, (IBR/Non IBR)
Alloy steel: ASTM A234
Grade: WP1,5,7,9,11,22,12,91
Types : Elbow, Tee, Reducer, Return Bends, Stub-Ends, Cap, Cross etc.
Size : 1/8"NB TO 48"NB. (seamless & welded) DN15– DN1200
Wall thickness : sch. 5s to sch.xxs
A234Wp11 Elbow,A234Wp11 Pipe Fitting,A234Wp5 Elbow
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