1. Platycodon grandiflorum is used as medicine and food, suitable for planting in mountainous, hilly and plain areas. This variety is planted in winter. After the seeds are mixed with soil and sowed in a certain proportion, it is slightly suppressed. There

Continuous rainy weather will cause extremely adverse effects on vegetable production in the shed. Excessive humidity in the shed is conducive to the occurrence and spread of many diseases; weakened light and lower temperature will inhibit the growth of ve

The low-temperature, high-humidity, and low-light environment in front of the greenhouse is not conducive to the growth of vegetables, but it is very suitable for the growth and reproduction of pathogenic bacteria, which also makes the front of the shed a

Longan is the fruit of the year and year and the fruit of the worst in the next year. The main reason is that after a large number of flowering results of the longan tree, the tree is weak, and it is impossible to produce a strong autumn shoot, which c

:2018-08-20 Recently, Cheng Hong, executive director of the Robotics Research Center of the University of Electronic Science and Technology, developed a fourth-generation exoskeleton robot to help paraplegic patients with spinal cord injury walk like normal people. "China is the fourth countr

Pruning time The grape vines have completely entered the dormant period, that is, the pruning period begins one month after the normal physiological leaf fall, and the pruning ends 25 days before the injury. According to the southern climate characteristic

Vegetables enter the fruiting period and have reached the critical stage of improving yield and quality. So, how to promote fruit expansion? Nutrition should be comprehensive During the vegetable expansion period, the plant has a large demand for nutrients