Release date: 2010-06-09 When the coffee ring effect splashes the coffee on the table, paying attention to the mark left by the coffee droplets after the liquid evaporates, it will be found that the peripheral position of the droplet forms a dark ring that is much darker than the middle area, w ...more
1. The Karl Fischer reagent used in the moisture analyzer is corrosive and should be taken care of during operation to prevent the reagent from splashing on the surface of the instrument. 2. The Karl Fischer reagent has different degrees of harm to the human body. Wh ...more
In the summer, Pleurotus ostreatus is cultivated. Because of the high temperature, the bacteria and pests are more active, and the cultivation and management should be strengthened in production. Choose the best varieties of medium-high temperature type Pleurotus ostreatus, such as Jiangdu 71, Fu ...more
The moisture in the soil can be described in two ways: water content and water potential. Water content refers to the volume of water per unit volume of soil or the weight of water per unit weight of soil. The unit is cm3/cm3%, kg/kg%; the soil water potential is the unit water extracted from the s ...more
Since the introduction of detoxification garlic, the planting area has been continuously expanding, and all garlic production areas in the country have been planted. Jiaxiang County introduced fruit from the Vegetable Research Institute of Shandong Academy of Agricultural Sciences in 1992 and cond ...more
The Jungmu girl strawberry variety is the Tochigi branch of Japan's Tochigi agricultural experimentation field. Zhenjiang Institute of Agricultural Science and Technology in the hilly area of ​​Jiangsu Province was introduced from Japan in 1998. In the past two years, greenhouse ...more
In agricultural production, farmers frequently ask questions about the mixed use of pesticides. In this regard, farmers should be more aware of it in order to receive more effective results. Mixed use of pesticides refers to the use of two or more pesticides mixed together with the use of the meth ...more