Bk Polishing Wheel Bk Polishing Wheel Bk Polishing Wheel,Bk Polishing Wheel For Glass,Bk Polishing Grinding Wheel,Bk Cup Glass Polishing Wheel LANBAO ABRASIVES CO.,LTD , http://www.lanbaoabrasives.com
First, balanced fertilization. According to the demand for nutrition in different periods of vegetable growth, balanced fertilization of nitrogen, phosphorus and potassium should be applied. Nitrogen fertilizer should be changed to reduce nitrogen, stabilize phosphorus and increase potassium. Organic fertilizer, NPK and trace element fertilizer should be combined with application.
Second, increase the application of fully decomposed organic farmyard manure to improve soil fertility. The organic fertilizer is applied in the vegetable field, and the organic colloid is formed during the decomposition process, and the organic colloid has a strong adsorption capacity for the cation. When the chemical fertilizer is applied to the soil, since the cation is mostly adsorbed by the colloid, the concentration of the soil solution does not rise. Too high can increase the buffering capacity of soil nutrients and greatly reduce the possibility of occurrence of fertilizer damage.
Third, control the amount of fertilizer, in the mid-range level is appropriate. As long as the amount of fertilizer is controlled, the damage will be greatly reduced. Generally, the application of ammonium bicarbonate per 667 square meters shall not exceed 30 kg, and the urea shall not exceed 10 kg.
4. Advocate the method of deep application and layered application in the whole layer. It is not suitable to spread on the soil surface to achieve the integration of soil and fertilizer, so that the fertilizer is evenly distributed throughout the cultivation layer. The point should be more than 10 cm from the roots of the crop. At the same time, pay attention to fertilization should be appropriate watering, keep the soil moist, reduce the solution, can avoid concentration damage.
Fifth, the application of granular fertilizer. At present, there are more compound or mixed granular fertilizers, some of which contain about 15% of nitrogen, phosphorus and potassium, and some of them are 10%, etc., so-called NPK ternary compound fertilizer. This fertilizer is often found in the form of granular fertilizer. Although the total nutrient content of granular fertilizers is many, most of them are changed from quick-acting to slow-acting. The granules need to be softened in the soil, and the nutrients are gradually released. This avoids the sudden high concentration of soil solution and burns the root system.
BK Polishing Wheel has cup type and flat type.It`s used for polishing 45°of Arris or the flat edge in Straight line Edging Machine.Shape Glass Edging Beveling Machine.Pencil edge Machine.It is suitable for high demand of furniture glass etc.
It has good brightness and lone life,we have tested and found that Its brightness can reach 70% of the imported BK polishing wheel.
Quick Details:
Place of Origin: Jiangmen, China (Mainland)
Brand Name: LANSHI
Abrasive: New material
Size: standard size or custom size
Hole/Bore: 22 ,25.4,50,60,70,90mm
Packaging & Delivery
Packaging Details: Carton.
Delivery Time Inner 2-7 days .According to the quantity of your order
Frequently Asked Questions(FAQ)
1, Are you a manufacturer?
Yes,we are manufacturer since 1994, 23 years production experience.
2,Do you have the right of Export?
Yes,we have the right of Import and Export.
3,What`s your payment term?
T/T 30% deposit,T/T 70% before shipment.
4, What is the minimum order quantity?
No MOQ, Just 1 pcs for testing is acceptable.
5,Can you provide OEM?
Yes,we can produce as your drawing also we can printing on the wheels as your requirement.
6,which modes of transport can you provide?
As your request,we can arrange shipment by Express ,by air or by sea etc.
Any problems,please feel free the contact with me .Thank you!
Beware of fatty damage in protected vegetables
In recent years, the phenomenon of fertilizer damage in vegetable protection sites is relatively serious. The main reason is that the protected land is in a relatively closed environment. The ammonia, nitrous acid and other gases produced by the fertilizer cannot be effectively spread out; or because of long-term application Fertilizers, lack of rainwater and leaching of large amounts of irrigation, cause these fertilizers to accumulate in the soil, causing physiological barriers to vegetables. The main manifestations are root dysplasia, less new roots, brown roots, water-soaked leaves, yellow-white or light brown leaves, severe leaf water loss and wilting, and individual plants appear to die. After analyzing the symptoms and causes of the damage, the following measures can be taken:
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