1. Fertilization at seedling stage
(1) Breeding of seedling cultivation soil. Cultivation of soil is the basis for the cultivation of asparagus seedlings, and the cultivation soil must be rich in nutrition and good physical and chemical conditions. With cultivation soil available fertile loam, decomposed circle fertilizer and livestock manure, large manure, grass and wood ash. The proportions are: 6 parts of fertile soil after sieving, 4 parts of decomposed cattle and horse manure, and 4 ring fertilizers. After mixing evenly, mix 15-20 kg of dry manure or dry chicken manure per cubic meter, and 0.5-1 kg of superphosphate. , 5-10 kg of plant ash or 1-1.5 kg of three compound fertilizers. After mixing, fill in Yangshuo or arch shed, the thickness of 14 cm.
(2) Preparation of nutritious earthworm nursery nutritious soil: generally consists of 5 pieces of clean garden soil, 2-3 pieces of cooked piles of manure, 1 part of river mud, 1 part of plant ash, and 2%-3% of superphosphate, fully mixed, and Add water and mix it to the extent that it is "hands in a group and landing is scattered."
2. Fertilization in childhood
(1) Fertilization before planting. Asparagus likes to loose and fertile soil environment. Before the planting, the soil should be deeply ploughed again. Before the ploughing, 2000-3000 kg of organic fertilizer should be applied every 666.7 square meters. In a planting trench with a depth and width of 40 cm each, 3,000-4,000 kg of decomposed organic fertilizer, 40 kg of nitrogen, phosphorus and ternary compound fertilizer (or 25 kg of ammonium bicarbonate, 50 kg of superphosphate, chlorine 15 kg of potassium), 25-50 kg of cooked cake fat.
(2) Fertilization after planting. One month after colonization, all the young plants have survived and emerged new shoots. In order to promote their growth and development, sufficient water and nutrients must be given. Then, quick-acting fertilizers can be applied, and 8-10 kg or ternary urea per 667 square meters. 10-20 kg of compound fertilizer. Before the plants enter the fall, they will ditch the livestock manure or other organic fertilizer 3000-4000 kg, phosphorus and potassium fertilizer respectively 10 kg, to promote autumn hair, expand plant assimilation area, and accumulate more assimilate for the next year. Harvest laid the foundation.
3. Fertilization in adulthood
Fertilization of adult asparagus can be carried out in 3-4 times a year. Before the spring harvest, the land can be combined with cultivating land and cultivating ridges, and 20 kg of compound fertilizer and urea can be applied to every 667 square meters of trenches. It is also possible to apply 1000-1500 kg of rotten and fine organic fertilizer. After harvesting, the storage of root nutrients consumes a lot, and the stems and leaves of the aboveground are also formed. Therefore, about one month after stopping the harvest, it is the period with the largest amount of fertilizer in the year, accounting for 70% of the annual fertilization amount. During this period, 3000-4000 kg of organic fertilizer is applied per 667 square meters, and 20-30 kg of compound fertilizer and urea are respectively mixed. The amount of organic fertilizer is less or the quality is not good. 50-100 kg of cake fertilizer can be mixed and opened between rows. Apply the ditch, then sprinkle the soil. After asparagus Qimiao watering 1, promote the absorption of asparagus fertilizer. After more than one month of growth, before and after the beginning of autumn, there will be a peak of stem extraction, and then enter the autumn vigorously for a long time. In order to ensure the normal growth during the autumn period, promote plant production and accumulate more photosynthetic products, before and after the fall, appropriation of 1000-2000 kg of organic fertilizer and 20 kg of compound fertilizer can be applied between the rows. If the amount of organic fertilizer is insufficient, the amount of fertilizer may be appropriately increased, but nitrogen, phosphorus, and potassium must be used in combination, and nitrogen fertilizer must not be applied without applying phosphorus, potassium, or nitrogen fertilizer. In the late autumn and early winter, after asparagus ceases to grow, 1000-2000 kg of organic fertilizer and 15-20 kg of compound fertilizer are applied every 667 square meters to ensure safe asparagus overwintering and promote early onset of the following year. Do not ditch the top dressing too close to the asparagus, nor too far away, generally leave the bamboo shoots 20-40 cm, not to hurt the root is appropriate. During the harvest period, applying a small amount of chemical fertilizers in phases will have a significant effect on increasing the amount of bamboo shoots harvested. In particular, 10-15 kg of compound fertilizer and urea will be chased every 667 square meters for 10-15 days before stoppage. Immediately absorbed by asparagus. Asparagus fertilization, people around the country also explored some successful experiences.
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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.
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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.
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Chengdu JRT Meter Technology Co., Ltd , http://www.rangingsensor.com