The U.S. Department of Agriculture has invented a new type of DNA testing device that can help food and beverage processors determine deadly bacteria faster, easier and more accurately. Scientists pointed out that the machine they developed was called a "flow cytometer," which can process-----
(I) Main diseases of vegetables and their prevention and control (1) Vegetable downy mildew: It can damage cruciferous vegetables, cucumbers, lettuce, onions, spinach, and mandarin. Distribution and damage: Downy mildew is a relatively important and harmful disease. This type of disease symptoms, t-----
When the engine is working, the maximum temperature can reach 1700-2000°C. Because of the cooling of the cooling water, the fitting clearance and deformation of the parts are ensured. However, the cooling system often deteriorates heat conduction due to fouling and destroys the cooling effect. I-----
The technical route for increasing maize production is that modern science and technology combined with traditional fine agronomy to stabilize the area and increase yields; to promote high-yield, disease-resistant and dense-tolerance hybrids as breakthroughs, increase the input of materials, especi-----
First, multi-flavored peanuts 1. Raw peanuts 500 grams, 200 grams of sugar, 200 grams of caramel, water 100 grams, 5 grams of salt, pepper 5 grams, 5 grams of chili powder, 3 grams of pepper powder, 3 grams of licorice powder, 400 grams of rice, 400 grams of vegetable oil, cinnamon, star anise. 2. -----
In 2001, the continuous high temperature and drought in most parts of China caused the watermelon to stand up in the flowering period. According to the study, the main reason is that due to the high temperature and drought conditions in the weather, the humidity in the air is small, and the soil mo-----
"Paddy Field Conservation Tillage Technology" is another revolution in the cultivation of rice fields. It has the advantages of no-tillage cultivation saving investment, straw returning land cultivation fertility, water conservation covering cultivation, avoiding incineration and ecologic-----