1. Production infrastructure. The land, water source and atmosphere are non-polluting, the soil is fertile, the soil layer is deep, the soil permeability is good, the water source is sufficient, and the irrigation and drainage facilities are available.
2. Variety selection and seed treatment. The large-ear type varieties promote Jinhai No. 5, Denghai 3707, Ludan 981, etc., and the dense and compact varieties are promoted by Ludan 984, Liaoyu 19, Zhengdan 958, Ludan 9006, and Ludan 9002. The seed treatment selects a high-efficiency, low-toxic and pollution-free corn seed coating agent such as 5.4% pyridoxine, or a seed dressing.
3. Seeding quality. 5 to 7 days before the wheat harvest, the seedlings or wheat harvest should be raked in time, and the corn should be timely watered after the corn is insufficient. The seeding rate is 25-3 kg/mu. When the line spacing is 50-65 cm, when the size is large, the line spacing is 80-90 cm, and the small line spacing is 30-40 cm.
4. Reasonable close planting. The dense and compact corn varieties are 4200~4700 plants/mu, and the large panicle varieties are 3200-3700 plants/mu.
5. Rational fertilization. High-yield fields shall be applied with nitrogen (N) 3 kg, phosphorus (P2O5) 1 kg, and potassium (K2O) 2 kg for each 100 kg of grain, and the amount of fertilizer required for the zinc-deficient plot shall be increased by 1 kg per mu. The seedling fertilizer is about 30% of the total nitrogen fertilizer before the jointing of the corn plus all the phosphorus, potassium, sulfur and zinc fertilizers. The panicle fertilizer is about 50% of the total nitrogen in the big bell mouth of the corn, and the grain fertilizer is in the grain filling stage. Topdressing 15% to 20% of total nitrogen. When the special fertilizer for slow-release of sulfur-containing corn is selected, it is applied once at the seedling stage.
6, irrigation and irrigation, cultivating. Irrigation water should meet the non-polluting requirements. In addition to the seedling period, the water holding capacity of the field should be watered in time if it is reduced to less than 60%. Combine fertilization with cultivating before jointing. The corn is afraid of cockroaches, and the flooding time should not exceed 0.5 days. The late flooding time should not exceed one day.
7. Comprehensive prevention and control of pests and diseases. The focus is on chemical weeding and pesticides to control pests and diseases.
8, timely harvest. When the corn matures, the grain milk line basically disappears, the base black layer appears when it is harvested, and it is dried in time after harvesting. It is suitable for promotion in high-yield areas of maize in Shandong Province.
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Laser Distance Meter Accessories
China leading manufacturers and suppliers of Laser Distance Meter Accessories,Laser Distance Meter Lcd, and we are specialize in Lcd Display,Laser Distance Meter Reflector,Laser Case etc. Those accessories are being a part of Laser products,which play an important role in the whole production line.
About us
1. Quality. Thanks to our strong R&D team, JRT Laser distance meter and modules have been keeping the pace with the measuring technical evolving and pioneering the industry with the unique and patented laser phase measuring solution. From the view of Accuracy, Range, Resolution, Stability, Size and Power Consumption, JRT is undoubtedly one of the best in the line.
2. Schemes of single transmit and single receive. This is one of our patents. We are the only one in the market have this technology. It helps us to reduce our cost and power consumption a lot.
3. Accuracy and Range. Our typical accuracy is ±1.0mm, and range from 40m to 150m.
4. Our laser distance meter and distance module have a high stability, especially for industrial applications.
5. Materials. We use the high performance price ratio components to guarantee the high quality along with a low price.
6. Service. All goods will be inspected and tested before shipment and have one year guarantee and a life-time after sales service. Thirdly, customers` satisfaction is the most important thing to us. If you have any problems or questions, please contact us by Trademanager, email, WhatsApp, Skype, telephone. You will get your respond within 12 hours on working days, 24 hours on holidays.
7. Size. We are keeping research on size of our laser distance module, the smallest size is: 45*25*12mm, 25g for now. We are R&D a new module the size is as small as a pen.
Company Profile
Located in Chengdu, founded at 2004, Chengdu JRT Meter Technology Co., Ltd is a manufacturer and trading company,which is specialized in R&D, processing and selling laser distance meter and modules for 15 years. JRT is one of the leading companies focused on manufacturing laser distance modules in China. We can do OEM designs and make functions as customer required base on our excellent R&D team. JRT is the only factory can make laser distmeters and modules with schemes of single transmit and single receive in china, which greatly reduced our production cost. JRT always make efforts keeping manufacturing laser distance modules cheaper, smaller but with higher quality. Customers` needs are always being the most important things to our company. JRT do its best to make all customer satisfied. To do that, we are keeping improving our quality, service and technology. Making every measurement simple in life is our goal.
Why chose us
Chengdu JRT Meter is the factory of manufacturing laser measure modules sensors more than 14 years.
Supporting OEM your own laser measuring tools.
Welcome to tell us your applicaiton, we are glad to help.
Industial Applicaiton:
1. Distance optional: 40m, 60m, 100m, 120m, 150m
2. Interface optional: serial port, USB, RS232, RS485, Bluetooth etc
3. Operating temperature: -10 ºC~50 ºC can be customized.
FAQ
Q1: What`s the delivery time after an order placed for this Handheld Laser Distance Meter?
A1: Our standard delivery is 3 days if we have stock, otherwise we will let you know in time, usually we manufacture 2000pcs a day.
Q2: What`s the MOQ?
A2: Regular products only 1pcs, OEM/ODM products need 1000pcs at least
Q3: What`s the warranty of the meter?
A3: All our products have one year guarantee and a life-time after sales service.
Q4: Can I have a sample for testing?
A4: Yes. We do not offer free samples, but will reimburse the buyer once an order is confirmed.
After-sales Service
1. All goods will be inspected and tested before shipment.
2. Customers` satisfaction is the most important thing to us. If you have any problems or questions, please contact us by Trademanager, email, WhatsApp, Skype, telephone. You will get your respond within 12 hours on working days, 24 hours on holidays.
Laser Distance Meter Accessories,Laser Distance Meter Lcd,Lcd Display,Laser Distance Meter Reflector
Chengdu JRT Meter Technology Co., Ltd , https://www.rangesensors.com