Early weaning of piglets at 21 days of age can not only increase the number of litters per year and the number of litters per year, but also save the sow's peak consumption during lactation. According to the calculation of weaning 7 days in advance, 5 kg of feed was eaten per day, greatly .......
The selected solanaceous fruit is put into the coffers at a room temperature of 20 to 25°C and is piled into a bowl, sealed with a polyethylene film, the content of oxygen in the book is 2% to 5%, and the carbon dioxide content is 5%. And under high carbon dioxide conditions, due to reduced.......
1. Fertilization Fertilizers for winter fertilization can accelerate the reproduction of phytoplankton. Phytoplanktons are the main primary producers in the pond ecosystem, and they are the main force for biological aerobics. They consume large amounts of carbon dioxide and nitrogen during the.......
In the operation of AC motors due to friction, vibration, insulation aging and other reasons, it is inevitable that the failure. If these faults are promptly inspected, discovered and eliminated, they can effectively prevent accidents.
One, asynchronous motor fault check
1. Listen to.......
One, asynchronous motor fault check
1. Listen to.......
The product belongs to the category of cool fruit and is further processed using lemon salt embryos. The processing techniques are as follows: 1. Raw material treatment: lemon salt embryos need to be soaked to remove some salt, soaked with a lot of fresh water, lemon salt embryos before proces.......
Waxy corn is a special type of corn, which is rich in protein, amylopectin, vitamins and a large number of selenium, magnesium and various trace elements. Because of its unique flavor and good health care function, it is very popular in domestic and foreign markets. However, due to the strong .......
Precision parts such as injector couplings, discharge valve couplings and live couplings, etc., with a small gap, a slight corrosion will reduce the performance, it is scrapped. therefore. For new parts that are not used temporarily, do not open the original packaging and keep it in a dry and .......
Strengthening the management of long-haired rabbits is an important technical guarantee for raising the economic benefits of raising rabbits. Combining some advanced experiences and practices in the production of long-haired rabbits in various fields and households, the author now describes th.......
Wenyu is a kind of marine shellfish with high economic value. It is tender and delicious and nutrient-rich. It is the top grade product in Fujian and enjoys the reputation of being the best in the world. It is one of the fresh aquatic products exported by China.
First, farm selection .......
First, farm selection .......
Most of the edible agricultural products are fresh foods. If they are left for a long time, they will produce odor and peroxide, and even have carcinogenic effects. If the food is not preserved in the refrigerator, it will be spo.......
A bogey and alkaline fertilizer mixed or simultaneous application. Basic fertilizers include grass ash, lime, molybdenum-magnesium-phosphate fertilizers, etc. If mixed urea is applied or applied at the same time, the nitrogen in urea will become ammonia and volatilize. Therefore, in.......
Storage processing content:
1, the choice of materials and processing mushroom-shaped full without open umbrella, no mechanical damage of the mushroom. After washing, the mushroom body was immediately placed in 0.05% sodium metabisulfite solution, and the mushroom body was submerged to ac.......
1, the choice of materials and processing mushroom-shaped full without open umbrella, no mechanical damage of the mushroom. After washing, the mushroom body was immediately placed in 0.05% sodium metabisulfite solution, and the mushroom body was submerged to ac.......