In the process of growth and development of cotton, due to the variety of pests and diseases , it is necessary to repeatedly and repeatedly carry out pesticide control; once applied improperly, it is easy to cause phytotoxicity to cotton, but it will affect growth and development, and plant metamorphosis or even death in severe cases. The remedy for cotton after phytotoxicity is:
1. Rinse. Most chemical agents are not resistant to water scouring. If the drug is found to be improperly used, it can be sprayed with water on the sprayer and sprayed repeatedly to wash away the residue on the surface of the cotton plant to reduce the phytotoxicity. When flushing, the pressure of the sprayer should be The amount of water sprayed is large. For the phytotoxicity caused by the cotton field applied by soil and some herbicides, the soil can be immediately washed and the residual agent can be drenched into the deep layer of the soil.
2. Filling the fertilizer. Generally, the phytotoxicity of the symptoms such as leaf spot, leaf edge scorch, and plant yellowing can be alleviated by applying fertilizer or foliar application of Green Wind 95, Gaomei Shi, Plant Power 2003, Tianda 2116, etc. Degree of harm. For example, when cotton seedlings have 2,4?d butyl phytotoxicity, the appropriate amount of quick-acting nitrogen fertilizer can be applied to promote hair growth and hair growth, so that the cotton plant can resume normal growth and development as soon as possible.
3. Chemical control. For some The phytotoxicity caused by the herbicide and the plant growth regulator can be reversely adjusted by spraying the plant growth regulator in a targeted manner after the phytotoxicity. If cotton seedlings are affected by 2,4?d phytotoxicity, foliar application with 30~50ppm gibberellin solution can obviously promote the growth of plants; when cotton produces chlormequat, spray "920" solution, Relieve phytotoxicity.
4. Thin tube. After the phytotoxicity of cotton, timely removal of chlorotic and metamorphic branches and leaves can reduce the penetration and conduction of the agent in the plant; timely cultivation of loose soil, appropriate application of phosphorus and potassium fertilizer can promote root development and enhance the resistance of cotton plants. .
Sectional Door Accessories: motor 220V-380V, control box, spring break device, cable break device , aluminum alloy rope pulley, enhanced shaft bracket, air bag system, duplex enhanced guide wheel bracket.
Detail introduction for above main accessories
1.Motor and controller:
The garage door operator is designed for residential overhead sectional and tilt doors.
The operator memorizes the limit positions and unique braking system that slows the unit down at the end of its travel.
Rolling code remote control with max. 20 pcs hand transmitters.
The operator is equipped with a manual release lever which allows manual operation of the door in case of power failure.
The controller has a security LOCK function which prevents operation of the door from transmitter.
2.spring break device:
Sectional doors are hinged and they bend in the tracks as the door opens and closes. Many of these doors are counterbalanced with extension springs, also designated "stretch springs," and they have seven characteristics. The length is the measurement of all the coils pressed together. This, along with the inside diameter of the coils and wire size - the thickness of the wire from which the springs are made - determine the stretch, the distance the spring is extended - normally half the door height, and pull, the force the spring pulls when stretched its normal length. The type of ends determine how the ends of the spring are mounted. The initial tension is the percentage of pull needed to separate the coils. This is determined by the pitch with which the springs are wound. On sectional garage door springs this is normally 15 percent. For example a 100 pound pull spring requires 15 pounds of weight to separate the coils; when a door is open the two springs will support 15 pounds of door weight without any stretch.
Most extension springs are made of oil tempered wire. These are normally coated or painted. Some springs are made of galvanized wire.
3.able break device:
cable break device ,door hardware
adjustable bottom bracket .
the raw material hot plate
zinc plated
safety device
adjustable bottom bracket
the raw material hot plate
zinc plating
spring safety device ,2" and 3" safety device
once the cable is broken ,this devoice can keep the hurt away from the door falling
4.aluminum alloy rope pulley
Equipment: CNC stamping/punching machine, CNC bending machine, CNC cutting
machine, 5~250 tons punching machines, welding machine, polish machines...
Processed material: stainless steel: copper, carbon steel
Surface treatment: Hot galvanized, polishing
Making process:Stamping, deep drawing,bending, punching, laser cutting,threading,
welding, tapping, riveting, grinding
5.air bag system
It is a safety device. When the door is down to hit something, it will up automatically.
Operation pressure:<3mbar
Battery:CR2032*2
Battery lifetime>1 year
Emission frequency: 315MHZ
Emission power:<10mW
Receiver power source:12V
6.duplex enhanced guide wheel bracket
Determining the right type of sectional door roller for your garage door tracks can be a little confusing, especially when you do not know what you need to look for in a garage door roller. To simplify things, there are two primary things you need to be aware of. First are the actual dimensions of the roller, and second is purpose that you will be using the door for. You can read below about measuring your roller and choosing the right quality of material for your door.
Other Door Accessories,Electronic Door Accessories,Automatic Door Accessories,High Speed Door Radar Detector
Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.pvchighspeeddoor.com