Management Techniques of Winter Wheat Field in Dryland of Sichuan Hilly Land

1. Grab the weeding in the wheat field. Due to the moist soil and good sensation, most of the wheat fields have many weeds. Even in the fields where chemical weeding has been carried out before sowing, there are more weeds. Wheat, jade, and vegetable crops are recommended. Instead of using

It is better to raise the inorganic salt feed by raising the sow.

Core Tip: The feed of the sow is mainly the seed of the plant, and the inorganic salt content of the plant is relatively low, which can not meet the needs of the pig, especially the pigs that grow faster on the cement floor of the fully enclosed pig house, and must

Gear pump in the use of coupling from the center of what to do

Gear pump coupling in use often off center, you need to constantly check the correction. When calibrating, pay attention to the following points: 1. Before the coupling is calibrated, if the coupling is uncoupled, check whether the rotation direction of the drive is consistent with the rotation

Advantages of Submersible Suction Pump

Submersible suction pump Compared with the general horizontal pump or vertical sewage pump, the submersible suction pump obviously has the following advantages: 1, there is no cavitation damage and irrigation and other issues; 2, the vibration noise is small, the motor Low temperature rise, no

Diamond saw blade

Diamond saw blade is a cutting tool, widely used in the processing of hard and brittle materials such as stone and ceramics. The diamond saw blade is mainly composed of two parts; the base body and the cutter head. The main body is the main support part of the

51 steel pipe network: DN in stainless steel tube

51 Steel pipe network: What is the meaning of DN in stainless steel pipe? The nominal diameter is the size of all the pipe accessories in the pipe system. The nominal diameter is a convenient round integer for reference, and it is not strict with the processing size. Relationship. The n