The vegetable shed is well-ventilated

The purpose of greenhouse ventilation is to adjust the temperature, humidity and carbon dioxide concentration in the greenhouse, and to discharge harmful gases. It is especially important to properly grasp the ventilation technology. The author has be

How to prevent celery spot blight

1. Use disease-free seeds. Planting seeds from disease-free plants. Can also use more than 2 years of Chen species, there is a certain effect of disease prevention. 2, seed disinfection. If new seeds less than one year old are used, they must be sterilized by seed soaking in warm water of

How to prevent and cure pear tree pests and pears?

When the pear trees are planted, the most troublesome thing is the pests and diseases. Next, Xiaobian brings everyone to come and know the pear tree and pear. In order to facilitate the management of pear trees in the back.

Key points for management of citrus orchards in April

From the middle of April to the end of May, it is the key period from citrus after flowering to fruit stabilization. It is generally called the young fruit period. In citrus production, this period is usually called the fruit preservation period-t

Clear the garden after pear picking

There are many pathogens and pests that overwinter in the soil by deep-turned tree trays. During the dormant period, deep-turned tree trays can turn overwintering insects, cocoons and pupae in the soil to the ground and freeze to death, or turn dee