Second control: control the amount of fertilizer, suitable for the mid-range level. It should also be noted that the foliar fertilizer should be sprayed to the optimum concentration to achieve twice the result with half the effort. When the concentration is too high, it is sprayed at high temperature at noon, which is prone to fat damage.
Sanqin: Master the principle of a small amount of diligence, avoid excessive application of high-concentration fertilizer.
Four with: Formulation of fertilization. It is necessary to change the nitrogen fertilizer to reduce nitrogen, stabilize phosphorus, increase potassium, and apply organic fertilizer, NPK and trace element fertilizers.
Five-cover: Advocate full-scale deep application or ditch application of soil, it is not appropriate to spread on the soil surface. The point should be more than 10 cm from the roots of the crop.
Six washes: use June or August to wash the salt with precipitation or irrigation.
Seven changes: deep soil or 0-20 cm surface soil, or rotated greenhouses to reduce surface salt.
Eight pushes: We must vigorously promote bio-organic compound fertilizers. The biological fertilizer contains microbial activated bacteria, which is a "four-in-one" fertilizer composed of organic fertilizer, inorganic fertilizer, bacterial fertilizer and synergist. It realizes the scientific formula of various fertilizers, complementing each other's advantages, and achieving the balance of greenhouse vegetables. One of the best fertilizers for fertilization.
From: melons and vegetables
Product Description
PTFE Tape commonly known as Teflon tape, PTFE tape or PTFE seal tape - is manufactured from pure PTFE granular resin. This Teflon tape is an ideal sealing material for pipe fitting, which is widely applied in industrial and civil-construction, machinery, chemicals, and space navigation especially in drainage systems.
Property of PTFE thread seal tape:
Property Unit Result
Apparent Density g/cm3 0.2-1
Tensile Strength ≥ MPa 20-30
Crack Elongation ≥ % 150
Dielectric Strength KV/mm 10
Working Temperature °C -180°C ~ + 260°C
Specifications:
Width(mm) Thickness(mm) Length(mm)
12 0.075 5
12 0.075 8
12 0.075 10
12 0.075 12
12 0.1 10
12 0.1 12
12.7 0.075 10
13 0.1 15
15 0.1 20
19 0.075 10
19 0.075 20
19 0.075 50
25 0.075 20
25 0.1 50
PTFE Tape
PTFE Film Tape,Woven PTFE Tape,Waterproof Adhesive Tape,Eco-Friendly Teflon Thread PTFE
ZHENJIANG CHUNHUAN SEALING MATERIALS CO.,LTD(GROUP) , http://www.chsealing.com