How to calculate the floor space of a pig house

In the forum, people often asked to build a pig house. First, calculate the reasonable area of ​​use based on the size of the terrain. The following data is for reference. 1. The total floor space, production floor area and auxiliary building area are calculated based on the required.....

Yellow tomato lower leaf treatment

The first is to find out the reason for the yellowing. The common ones are: for yellowing of diseases, to distinguish different diseases, targeted drug selection; for leaves that turn yellow due to phytotoxicity, they need to stop using drugs or change varieties; for large watering, low water tempe.....

Pay attention to control of pepper disease

In recent field investigations, the occurrence of hot pepper disease has been severe and prevention and control should be stepped up. Symptoms: dark green round lesions appear on diseased leaves, the edge is not obvious, when wet, it can appear white moldy, lesions spread rapidly, most of the lea.....