Ensure winter water and winter fertilizer. Ensure that winter water and winter fertilizer can improve soil nutrients, water conditions, and stabilize ground temperature changes, create good conditions for wheat seedlings to turn green and increase the rate of tillering into ears, and grasp the initiative of spring management. Winter irrigation in saline-alkali soils also has the effect of reducing alkaline and improving soil. The amount of winter fertilizer should not be too large. It should be adapted to seedling conditions. The amount of topdressing per mu in the middle-yield wheat field accounts for about 20% of the amount of topdressing. The plots without base phosphate fertilizer should be combined with nitrogen and phosphorus. Winter fertilizers are not applied to wheat fields that have been fertilized.
The winter water pouring should end when the average daily temperature is 7~8℃ when the night freezes and the day disappears. Late cropping wheat has a short growth period before winter, few leaves and few roots, or "one leaf". In order to use the effective accumulated temperature during the freezing and thawing period of early winter and early spring, increase the planting ground temperature and promote the increase of roots and tillers. In the case of high soil moisture It is not suitable to pour winter water.
Deep Yun, suppress and loosen the soil. Water irrigated wheat fields with medium fertility and above. After the beginning of winter, when the total number of tillers per acre reaches 1.5 times the planned number of ears, deep root cutting should be carried out, using a hoe that removes the left and right two teeth, with a depth of 10 cm. After deep cultivating, the columbine should be leveled and steadfast immediately to prevent the seedlings from being pressed and the air lost, and winter water should be poured in time. For wheat fields where the population is too large, deep root cutting has an obvious effect on controlling population development.
For wheat fields with over-growing populations that are too large, suppression measures can also be used to suppress tiller growth before overwintering. In wheat fields with extensive cultivation and a lot of rubbish, the ground shall be suppressed before the ground freezes to crush the rubbish and make up for the cracks, which can play a role in heat preservation and moisture retention of the soil. Compression of wheat should be carried out after noon, so as to avoid frost damage to the seedlings in the morning, and saline-alkali land should not be suppressed.
It should be noted that after the wheat field is poured with winter water, it is easy to cause the ground surface to harden, cracks, soil moisture is easy to lose, the wheat roots are pulled off, and the wheat seedlings freeze to death, and the soil must be cut and hoeed in time.
Pay attention to frost damage prevention and management of frozen backfield. To prevent freezing damage, in addition to using good seeds, applying sufficient base fertilizer, and cultivating strong seedlings, it is also necessary to apply farmyard manure to cover wheat and suppress strong seedlings during the overwintering period to keep warm, fertilize the field and prevent freezing. Where conditions permit, water can also be used for winter irrigation. When wheat leaves are frozen, as long as the tillering nodes are not frozen, chemical fertilizers should be applied as soon as possible to promote seedling transformation; in case of dryness, topdressing should be combined with watering and drought resistance.
Disclaimer: Some articles on this website are transferred from the Internet. If the legal rights of a third party are involved, please inform this website for processing. phone
Access Control Keypad is a security product that can be connected to a lock and unlocked by swiping card, password, fingerprint, mobile phone, etc. Residents can connect the access control keypad to the electric lock, Magnetic lock , etc., and then control the door opening by access control keypad.
The access control keypad also plays a very important role in the whole intercom system. If there are multiple doors in the building and residents need to be controlled to open all doors. For this project only needs to use one main Video Intercom System in the main door. For example, there are two doors in the building.
We can offer you with two solution for this project:
1. Customers can use 2 sets Video Door Phone for two doors
2. Customers can use 1 set video door phone and 1 set access control keypad,one for mainly door and another one for side door or basement.
Usually many customers will choose to use the second one solution. Because it can save more money for the whole project to the greatest extent.
There are many different solutions for the connected access control keypad, which can be modern access control keypad, open the door with a password or swipe card, and some customers like to be more intelligent, that is remotely unlock, which can work together with the video door phone to remotely unlock two doors through the mobile phone APP.
The following is our access control keypad, which supports password and card swiping.
The following are its parameters for your reference:
1. metal shell, waterproof
2. Touch the button
3. 1000\4000 users
4. anti-flapping door
5.external card reader
We are a factory specializing in the production, manufacture and research and development of Access Control System for 11 years. If you want to know more about us, please send us an inquiry, we are very honored to share the catalogue and price with you.
FAQ
Q: What is your service ?
a. we can offer OEM&ODM services
b. All software free provide , and technical support after-service
c. Online installation guide services.
Q: Whats the MOQ?
To ensure the best logistic cost, we suggest 100pcs(one carton).However, we are open to take orders with small qty.Welcome to sample order, contact with us.
Q: What payment terms are available?
T/T, Paypal, Western Union, credit card.
Q: How long is your production lead time?
Sample Order-Within 1-5 working days.
Bulk Order - 15-20 days for neutral items, 7 days if the items we have stock
Q: What's Your Products Warranty?
We Offer 12 Months Warranty after shipment sent.
Access Control Keypad,Gate Entry Keypad,Keypad Access Control System,Door Entry System Keypad
Zhuhai Mingke Electronics Technology Co., Ltd , https://www.mingke-tech.com