Killing the eggs of insect pests in early spring will allow the underlying soil to be fully exposed to sunlight, and ultraviolet rays will kill germs hidden in the soil. Especially the eggs of cotton bollworms hiding in the ground and wintering and being awakened can be killed after they are pulle

Tablets are convenient for taking, and are a common type of Zui in pharmaceutical preparations, and the die is an indispensable accessory on the tablet press machine commonly used by Zui. It is also very important to choose the right die after the tablet press is purch

The percentage of detached corn should be based on the size of the tassels, the amount of pollen, the quality of field management, and the degree of flowering. The amount of pollen is large, and the tassels of 2-3 rows of plants can be removed one row apart; the amount of chemical elements is small