Application and research of elastic seat sealing eccentric plug valve The elastic seat sealing eccentric plug valve is a new type of plug valve. It fills the gaps in traditional plunger valves and ball valves in large-diameter pipelines (above DN200) and sewage cem.......
In view of the drought conditions in the spring maize production area in our province, the scientific use of effective public opinion, and actively doing a good job in seed selection, sowing, fine soil preparation, timely sowing, and so on, it is crucial for the spring sowing of corn to pr.......
Fishmeal is a feed made from whole fish or fish scrap (fish heads, fish tails, fins, entrails, etc.) as raw materials, after cooking, pressing, drying, and crushing. Fishmeal has a high protein content, amino acid balance, unknown growth factor, etc. It is a well-recognized animal protein .......
First, start from the source, do not let the disease enter the market
1. Do a good job of quarantine and isolation. The purchase of piglets should be done on a regular large-scale farm or purchased by neighboring farmers. If you buy piglets in the market, it is recommended that you.......
Bitter gourd has high temperature and does not tolerate cold, so it brings certain difficulties to the production of solar greenhouse in winter. In recent years, the cultivation of balsam pear in the solar greenhouse through grafting technology in some areas has enhanced plant disease resi.......
The use of drugs to prevent pig diseases is an indispensable part of pig production. However, in recent years, many pig farms (households) have invested a lot of human, financial and material resources in the prevention and treatment of swine diseases. Loss of profit is exhausted. Pig dise.......
(I) Appearance
Rex rabbits are well-proportioned, with cheeks under the cheeks, ears long and upright, with fine and curly brows, plush, dense, rich, s.......
The relevant person in charge of the Ministry of Agriculture stated at a press conference held on July 25 that since July, the country’s highly pathogenic blue-ear-ear disease has been on a downward trend.
Ministry of Agriculture statistics show that as of July 22, a total o.......
The weeds that grow on the fields and ditches in the fields are not only good feed for pigs, but also have high medicinal value and health care effects. Practice has proved that the proper combination of weeds in pig feed can not only save food, reduce costs, but also help to increase appe.......
This paper reviews the development status of non-metallic ore superfine pulverization technology and equipment, and points out the existing problems and development directions. Non-metallic minerals, together with metal ore and fuel mines, are kn.......