The spatial variability and accurate prediction of soil nutrients are conducive to improving the accuracy of fertilizers, adjusting the speed of different fertilizer fields, reducing waste and increasing farmers' income, protecting agricultural resources and environmental.......
Many people choose sweet potatoes when they are tonic. Everyone knows that sweet potatoes are not only delicious but also have rich nutritional value. Sweet potato is a very common food, but it can effectively prevent constipation, improve immunity and reduce the i.......
17 years ago, James Muller, a former medical professor at Harvard Medical School, wanted to develop an intravascular imaging device to promote the diagnosis and management of coronary artery disease. Muller founded Infraredx to bring infrared imaging equipment to market. Sinc.......
What are the phosphorus and potassium fertilizers? Phosphorus and potassium fertilizers are fertilizers containing phosphorus and potassium. At present, the more popular production method is to crush the (phosphorus) potassium ore to a fineness of about 100 mesh, the sieve .......
The normal shape of the egg is ovoid, and the egg shape index is between 0.72 and 0.76. Long, round, sharp, medium, or large, extra small, etc. cannot be used.
Eggs from the source of eggs must be from high-yield, health and disease-free, feeding and management is correct, the appr.......
prevention
It is mainly inoculated with a pigeon pox vaccine. Pay attention to inoculate all unhealthy and healthy pigeons, it is too late once the pigeons have symptoms and then vaccinated. Inoculation method according to the label instructions for dilution, and then pull o.......
Nowadays, when it is summer season, this is also the season that is most likely to get angry. Therefore, in summer, you should pay special attention to clearing fire and get rid of the trouble of getting angry. For the summer fire, perhaps everyone has their own se.......
After the beginning of autumn, the heat is gradually receding. It is a period of transition from heat to cold. Zhu Chengquan, director of the Health Department of the No. 421 Hospital of the Chinese People's Liberation Army, reminded that health care in the ear.......
The toxic substances in the human body mainly come from two sources: First, pollutants in the atmosphere and water sources, which invade into the human body through breathing and meals; the heavy metals such as lead, aluminum, and mercury are representative; the other is the metabolism of .......
(a) Vegetable sowing. The main vegetables in autumn are Chinese cabbage, radish, and carrots. Should pay attention to the selection of disease-resistant, cold-resistant, high-yielding and resistant storage of late-maturing varieties, and pay attention to appropriate sowing, Chinese cabbage.......