The egg production rate of the duck group rose from 60%, and then decreased to 80% after maintaining for a period of time. It was the middle period of the whole laying season. The focus of this issue is to meet the nutritional needs of ducks as much as possible and provide a stable and comfortable ......
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1. Soil selection. Black grape can normally grow on slightly acidic and neutral, slightly alkaline loam soils. It is best to use neutral and slightly alkaline sandy loam with loose soil and good drainage. 2, Zhiman shaping. Auxiliary shoots can be reserved for 1-2 as the resulting mother shoots, l ......
Dangshen Dangseng plants Campanulaceae Codonopsis Codonopsis pilosula (Franch.) Nannf. , Suhua Codonopsis C. Pilosula Nannf. Var.modesta (Nannf. ) LTShen or Codonopsis C.tangshen Oliv. Roots. Mainly produced in Shanxi, Shaanxi, Gansu. Wash and wash in autumn, dry, cut ......
The chicken tree worms are genus shrubs belonging to the family Caprifoliaceae and are distributed in the northeast, north and northwest of China to the Yangtze River basin. Tree height up to 3 meters, bark dark gray, shallow longitudinal cracks, slightly corky, thorns with obvious lenticels. Leav ......
1. Common faults: The heating is not hot overall. Remedy: Open the inlet and outlet valves. 2. Common faults: The heating is not hot (the valve is open). The heating is not hot at all. There is a sound of water in the heater. Remedy: There may be gas in the heater and it needs to be deflated. Meth ......
Overview of the globe valve The opening and closing member of the stop valve (Globe Valve) is a plug-shaped valve flap having a flat or tapered surface, and the valve flap moves linearly along the center line of the fluid. The movement form of the valve stem has a lif ......
South China Zui big valve wholesale base  Overview: Ball valves are an important type of valve and are widely used in petrochemical, long-distance pipelines and other fields. The closing member of the ball valve is a holed ball (or a partial ball) that rotates with the valve stem to open ......
Many white-collar women like to drink vegetable juice and fruit juice early in the morning. This ignores one of the most important issues. The human body will always prefer a warm environment. The body will be warm, the microcirculation will be normal, and oxygen, nutrients, and waste will be tran ......
The cultivation of freshwater puffer fish has been tested in different regions (including Xinjiang, etc.) in the Pearl River, Yangtze River and Yellow River basins. At present, it is believed that there are few seedlings, and there is a lack of breeding experience. Especially when the seedlings gr ......
The liver is the only non-painful organ, which is most easily overlooked. Young and middle-aged men gradually become the “new darling†of cirrhosis and liver cancer, which is related to liver overload. If you once found yourself on the feast, you found that your drink was plummeting, ......