The application of cracking sweet potato root tubers usually begins in late August. Since the roots expand, cracks occur between the rows. At this time, crack fertilizers must be applied to prevent premature failure of stems and leaves and to accelerate the expansion of tubers. The main application of nitrogen and potassium fertilizer, generally in late August with 3% to 5% of potassium sulfate or 15% to 20% of the ash leaching liquid, can also be used 1% of potassium dihydrogen phosphate fertilizer, 100 ~ per acre of fertilizer 150 kilograms; or per acre topdressing ammonium sulfate 4 to 5 kilograms, watered 500 kilograms; can also be used for human excrement 200 to 250 kilograms, watered 600 to 750 kilograms, Shun Ridge grouting applied. You can also apply 150-200 kg of gray water per acre. 2% nitrogen, phosphorus and potassium mixture can be applied to lands with premature aging and premature aging. It is forbidden to turn over the vines to damage the stems and leaves, affect photosynthesis, reduce the accumulation of nutrients, and affect the weight gain of the tubers, generally reducing production by 20% to 25%, and increasing the amount by more than 30%. Therefore, sweet potato should not turn over during the whole growth period. For the sweet potato field with prosperous growth, it is advisable to use vine tip or light vine to control the growth and inhibit the formation of fiber roots so as to avoid the consumption of fiber roots for nutrients, increase the photosynthetic capacity of the leaves, and promote the expansion of tubers. Drought-proof drainage encounters dry weather in the late growth stage of sweet potato, and water is used in the gutters in areas with conditions to adjust fertilizers with water, promote the growth of stems and leaves, enlarge the photosynthetic area, increase photosynthetic products, and facilitate the expansion of tubers. However, water should not be watered within 20 days before harvest so as not to reduce the storage resistance of sweet potato tubers. If you encounter the fall, you should clear the drain in time to prevent the chips from being stained. During the late stage of growth of the sweet potato, the fertilizer absorption capacity of the roots was weakened, and foliar spray fertilizer was used to ensure nutrients needed for tuber root swelling. In general, hilly slopes or fields with premature decay should be sprayed with 0.5% urea; leafy vines with prosperous fields should be sprayed with 0.2% potassium sulfate or 5% ash leaching; general fields can be sprayed. 0.4% ~ 0.5% of urea and potassium dihydrogen phosphate mixture. Each spray fertilizer 75 to 100 kg per acre. Spraying time generally starts from mid-August, spraying once every 7~10 days, and spraying 2~3 times. Spraying time should be controlled before the evening of the sunny day. Rain should be sprayed after spraying. 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:
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 , http://www.accuracysensor.com
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.