Three types of fertilizer should not be used as medicinal materials

Chinese medicinal materials are special crops. If the fertilizer is used improperly during cultivation, it is prone to germination and burning, which causes unnecessary economic losses. Therefore, it is not advisable to use three types of chemical fertilizers as "fertilizers" for

How to choose a herbicide

Chemical weeding has been accepted by farmers because of its advantages of fast, efficient and easy operation. Especially in the summer maize growing season, due to high temperature, high humidity, rapid growth of weeds, and often rainy weather in summer, artificial and mechanical control

How to choose and install and maintain the kitchen exhaust fan

The kitchen is a heavy oil fume area, the kitchen is full of various methods of frying, frying, boiling, steaming, roasting, frying, etc., resulting in high temperature, humidity, and polluted gases. When it is accumulated to a certain extent,