Which fertilizer is suitable for the fertilizer

Ammonium bicarbonate (volatility and corrosive, easy to smear seeds and seedlings), superphosphate (containing free sulfuric acid and phosphoric acid, causing damage to seed germination and seedling growth), urea (generating a small amount of biuret, If the content exceeds 2%, it will cause toxicity to seeds and seedlings), potassium chloride (containing chloride ions), ammonium nitrate, potassium nitrate (containing nitrate ions, which is toxic to seed germination), and unfertilized farmyard manure (in During the fermentation process, a large amount of heat energy is released, and the roots are easily burned, and the ammonia gas is released to burn the seedlings. These are not suitable for seed fertilizer. The fertilizer should use a compound fertilizer containing nitrogen, phosphorus and potassium. The nitrogen content should not be too high, otherwise it will easily cause burning and burning. It is best to use stable long-acting slow-release fertilizer, such as double 40% (26-8-6) intelligent zinc controlled release fertilizer, 48% (26-10-12) stable compound fertilizer, 51% (31- 10-10), this not only provides the nutrients needed for crop seedling growth, but also ensures that it does not lose fertilizer in the later stage.
How far is the seed fertilizer?
The concentrated application of chemical fertilizer to the roots will increase the salt concentration of the soil solution in the root zone, and increase the osmotic pressure of the soil solution, hindering the penetration of soil moisture into the roots and causing damage to the crops due to lack of water. Fertilizers applied directly to the roots, especially nitrogen fertilizers, cause the roots to over-absorb nutrients even if the concentration does not reach the level of “burning out” crops. The stems and leaves are prolonged, which may lead to disease, lodging, etc., resulting in crop yield reduction. Therefore, keep seeds and fertilizers at intervals of 5 cm or more, preferably 10 cm.
How much fertilizer is suitable?
If the crop cannot be watered in time after planting, the amount of seed fertilizer (common ternary compound fertilizer) should generally not exceed 25 kg per mu. When the crop is 5-7 leaves, 10-15 kg per acre is applied. If it can be watered in time, and the seed fertilizer interval is more than 7 cm, the amount of fertilizer can reach 40 kg per mu.

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Standard	(ASME/ANSI B16.11, MSS-SP-97, MSS-SP-79,JIS B2316, BS 3799etc)
Pressure(Thickness)	2000LB, 3000LB, 6000LB( SCH80, SCH160, XXS)
Process	Free forging, plate cutting .forged
Size	1/8"-4"(DN6-DN100)
Connect Type	Welded, threaded, BW, SW
Shape	Equal
Printing	Carbon steel and alloy steel with yellow print, black print, oil or zinc
Material	Carbon steel: 20#, 16Mn, ASTM A105,Q235,A350LF2, A350LF3, Stainless steel: ASTM A182 F304, F304L,F316,F316L, F317L, F321, F321H, F347, F347H, F310, F44 F51,S31803, A182, F43,S32750 Line Pipe: ASTM A694 F42,F46,F52,F56,F60,F65,F70,  Low Alloy steel: A182 F12,F11,F22,F5,F9,F91,ECT Special Material: Monel, Duplex S.S, Alloy, Inconel, 904L etc.
Packing	Nylon bags, Wooden cases, or according to the customers' requirements
Certificates	ISO, API, CE, CCS, Factory audit by SGS
Delivery time	10-45 days depending on quantity
Shipment	FOB Tianjin/Shanghai, CIF, CFR, etc
Application	Petroleum, chemical, power, gas, metallurgy, shipbuilding, etc
Inspection	factory in-house or Third Party inspection available upon requests.

Aluminum Socket Weld Flange

Aluminum 1060 Socket Weld Flange, Aluminum 5083 Socket Weld Flange, Alumium 6061 Socket Weld Flange, Aluminum B241 Socket Weld Flange, Aluminum 6061T6 Socket Weld Flange

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