The nitric acid and nitrates formed after the application of ammonium nitrate are not easily adsorbed by the soil colloid, and are easy to flow with water, especially in paddy fields, and nitrogen loss is greater than that in dry land. In addition, in an anaerobic environment such as paddy soil, nitrate easily infiltrates into the water field reducing layer, which can generate ammonia gas or nitrogen monoxide under the action of denitrifying bacteria, resulting in denitrification loss. If it is applied, it should also be applied during the period of rice abundance and the formation of young spikes with high utilization rate of nitrate nitrogen. The application should pay attention to water management, fertilization about 3 cm in shallow water, and natural after application. Drain and refill afterwards.
Wire thread inserts are helically coiled fastening devices that provide permanent, wear-resistant screw threads that exceed the strength of most parent material; the inserts are designed to protect tapped holes against failures due to stripping, seizing, corrosion, and wear.
Threaded inserts are typically used when the object in which a threaded fastener is being installed is made of a soft material. For hard materials, a screw or bolt can be often driven into the object without the need for a threaded insert. A simple solution is to use a threaded insert.
Wire Thread Insert,Wire Thread Auto Repair Inserts,Metal Wire Thread Insert,Wire Thread Repairing Insert
Shenyang Liming Mechanical Component Factory Shenyang Helisert Technology Co., Ltd , https://www.helisert.com